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  • Industrial Chemistry  (224)
  • Aircraft Stability and Control  (10)
  • FLUID MECHANICS AND HEAT TRANSFER  (8)
  • AERODYNAMICS  (7)
  • 42.75
  • 1950-1954  (249)
  • 1953  (249)
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  • 1950-1954  (249)
Year
  • 1
    Publication Date: 2019-05-29
    Description: Conference on aerodynamics of high speed aircraft
    Keywords: AERODYNAMICS
    Type: NASA-TM-X-57121
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  • 2
    Publication Date: 2019-05-23
    Description: Drag measurements at low lift of four-nacelle aircraft configuration with longitudinal distribution of cross-sectional area conducive to low transonic drag rise
    Keywords: AERODYNAMICS
    Type: NACA-RM-L53E29
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  • 3
    Publication Date: 2019-06-28
    Description: During the flight program on the Bell X-5 airplane with 59 deg sweepback to determine the practical Mach number and normal-force coefficient limits of this configuration, a reduction in static longitudinal stability was encountered in maneuvering flight. A determination of the boundary for reduction of longitudinal stability extending to a Mach number of 0.98 is presented in this paper. A reduction of static longitudinal stability existed for all elevator and all stabilizer-executed maneuvers. The reduction of stability existed for maneuvers executed with elevator near a normal-force coefficient of 0.6 for a Mach number range of about 0.31 to 0.76. Above a Mach number of 0.76 the normal-force coefficient for reduction of stability gradually decreased to a value of 0.2 at a Mach number of 0.98. For stabilizer-executed maneuvers the stability boundary was the same as for elevator maneuvers up to a Mach number of 0.88. Above this Mach number the reduction of stability occurred at slightly higher normal-force coefficients decreasing from about 0.51 at a Mach number of 0.92 to a value of 0.311 at a Mach number of 0.97. The airplane has been flown to a Mach number of 1.04 at a normal-force coefficient of about 0.15 without encountering any reduction of stability. The pilot did not consider the reduction of stability to be dangerous at altitudes above 30,000 feet; however, precise flight was impossible. At angles of attack above that at which the reduction of longitudinal stability occurred, directional instability and aileron control overbalance were encountered.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-L53A09b
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  • 4
    Publication Date: 2019-06-28
    Description: During the acceptance tests of the Bell X-5 airplane, measurements of the static stability and control characteristics and horizontal-tail loads were obtained by the NACA High-Speed Flight Research Station. The results of the stability and control measurements are presented in this paper. A change in sweep angle between 20 deg and 59 deg had a minor effect on the longitudinal trim, with a maximum change of about 2.5 deg in elevator deflection being required at a Mach number near 0.85; however, sweeping the wings produced a total stick-force change of about 40 pounds. At low Mach numbers there was a rapid increase in stability at high normal-force coefficients for both 20 0 and 1100 sweepback, whereas a condition of neutral stability existed for 58 0 sweepback at high normal-force coefficients. At Mach numbers near 0.8 there was an instability at normal-force coefficients above 0.5 for all sweep angles tested. In the low normal-force-coefficient range a high degree of stability resulted in high stick forces which limited the maximum load factors attainable in the demonstration flights to values under 5g for all sweep angles at a Mach number near 0.8 and an altitude of 12,000 feet. The aileron effectiveness at 200 sweepback was found to be low over the Mach number range tested.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-L52K18b
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  • 5
    Publication Date: 2019-06-28
    Description: Flight measurements of the stability characteristics of the Bell X-5 research airplane at 59 deg sweepback were made in steady sideslips at Mach numbers from 0.62 to 0.97 at altitudes ranging between 35,000 and 40,000 feet. The results showed that the apparent directional stability was positive and increased at Mach numbers above 0.90. The apparent effective dihedral was positive and high, increasing at Mach numbers above 0.75. The cross-wind force coefficient per degree of sideslip was positive and increased rapidly at Mach numbers above 0.94.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-L52K13b
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  • 6
    Publication Date: 2019-06-28
    Keywords: AERODYNAMICS
    Type: NACA-RM-A53G08
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  • 7
    Publication Date: 2019-06-28
    Description: An analysis of combined heat and mass transfer from a flat plate has been made in terms of Prandtl t s simplified physical concept of the turbulent boundary layer. The results of the analysis show that for conditions of reasonably small heat and mass transfer, the ratio of the mass-and heat-transfer coefficients is dependent on the Reynolds number of the boundary layer, the Prandtl number of the medium of diffusion, and the Schmidt number of the diffusing fluid in the medium of diffusion. For the particular case of water evaporating into air, the ratio of mass-transfer coefficient to heat-transfer coefficient is found to be slightly greater than unity.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-3045
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  • 8
    Publication Date: 2019-06-28
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-2904
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  • 9
    Publication Date: 2019-06-28
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-2903
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  • 10
    Publication Date: 2019-06-28
    Description: Calculations have been made for the icing limit of a diamond airfoil at zero angle of attack in terms of the stream Mach number, stream temperature, and pressure altitude. The icing limit is defined as a wetted-surface temperature of 320 F and is related to the stream conditions by the method of Hardy. The results show that the point most likely to ice on the airfoil lies immediately behind the shoulder and is subject to possible icing at Mach numbers as high as 1.4.
    Keywords: AERODYNAMICS
    Type: NACA-TN-2861
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  • 11
    Publication Date: 2019-06-28
    Keywords: AERODYNAMICS
    Type: NACA-RM-E53C26
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  • 12
    Publication Date: 2019-06-28
    Description: The effects of primary and. runback icing and frost formations on the drag of an 8-foot-chord NACA 651-212 airfoil section were investigated over a range of angles of attack from 20 to 80 and airspeeds up to 260 miles per hour for icing conditions with liquid-water contents ranging from 0.25 to 1.4 grams per cubic meter and datum air temperatures of -30 to 30 F. The results showed that glaze-ice formations, either primary or runback, on the upper surface near the leading edge of the airfoil caused large and rapid increases in drag, especially at datum air temperatures approaching 32 F and in the presence of high rates of water catch. Ice formations at lower temperatures (rime ice) did not appreciably increase the drag coefficient over the initial (standard roughness) drag coefficient. Cyclic de-icing of the primary Ice formations on the airfoil leading-edge section permitted the drag coefficient to return almost to the bare airfoil drag value. Runback icing on the lower surface did not present a serious drag problem except when heavy spanwise ridges of runback ice occurred aft of the heatable area. Frost formations caused rapid and large increases in drag with incipient stalling of the airfoil.
    Keywords: AERODYNAMICS
    Type: NACA-TN-2962
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  • 13
    Publication Date: 2019-06-28
    Description: Convective heat-transfer coefficients in dry air were obtained for an ellipsoidal spinner of 30-inch maximum diameter for both stationary and rotating operation over a range of conditions including airspeeds up to 275 miles per hour, rotational speeds up to 1200 rpm, and angles of attack of zero and 40 The results are presented in terms of Nusselt numbers, Reynolds numbers, and convective heat-transfer coefficients. The studies included both uniform heating densities over the spinner and uniform surface temperatures.. In general, the results showed that rotation will increase the convective heat transfer from a spinner, especially in the turbulent-flow regions. Rotation of the spinner at 1200 rpm and at a free-stream velocity of 275 miles per hour increased the Nusselt number parameter in the turbulent-flow region by 32 percent over that obtained with a stationary spinner; whereas in the nose region, where the flow was laminar, an increase of only 18 percent was observed. Transition from laminar to turbulent flow occurred over a large range of Reynolds numbers primarily because of surface roughness of the spinner. Operation at an angle of attack of 40 had only small effects on the local convective heat transfer for the model studied.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-RM-E53F02
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  • 14
    Publication Date: 2019-06-28
    Description: The effects of existing frictional heating were analyzed to determine the conditions under which ice formations on aircraft surfaces can be prevented. A method is presented for rapidly determining by means of charts the combination of-Mach number, altitude, and stream temperature which will maintain an ice-free surface in an icing cloud. The method can be applied to both subsonic and supersonic flow. The charts presented are for Mach numbers up to 1.8 and pressure altitudes from sea level to 45,000 feet.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-2914
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  • 15
    Publication Date: 2019-06-28
    Description: The general effect of wing sweep on cloud-droplet trajectories about swept wings of high aspect ratio moving at subsonic speeds is discussed. A method of computing droplet trajectories about yawed cylinders and swept wings is presented, and illustrative droplet trajectories are computed. A method of extending two-dimensional calculations of droplet impingement on nonswept wings to swept wings is presented. It is shown that the extent of impingement of cloud droplets on an airfoil surface, the total rate of collection of water, and the local rate of impingement per unit area of airfoil surface can be found for a swept wing from two-dimensional data for a nonswept wing. The impingement on a swept wing is obtained from impingement data for a nonswept airfoil section which is the same as the section in the normal plane of the swept wing by calculating all dimensionless parameters with respect to flow conditions in the normal plane of the swept wing.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-2931
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  • 16
    Publication Date: 2019-06-28
    Description: Trajectories were determined for droplets in air flowing through 90 deg elbows especially designed for two-dimensional potential motion with low pressure losses. The elbows were established by selecting as walls of each elbow two streamlines of the flow field produced by a complex potential function that establishes a two-dimensional flow around a 90 deg bend. An unlimited number of elbows with slightly different shapes can be established by selecting different pairs of streamlines as walls. The elbows produced by the complex potential function selected are suitable for use in aircraft air-intake ducts. The droplet impingement data derived from the trajectories are presented along with equations in such a manner that the collection efficiency, the area, the rate, and the distribution of droplet impingement can be determined for any elbow defined by any pair of streamlines within a portion of the flow field established by the complex potential function. Coordinates for some typical streamlines of the flow field and velocity components for several points along these streamlines are presented in tabular form.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-2999
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  • 17
    Publication Date: 2019-06-28
    Description: The trajectories of droplets in the air flowing past an NACA 65A004 a irfoil at an angle of attack of 4 deg were determined. The amount of water in droplet form impinging on the airfoil, the area of droplet impingement, and the rate of droplet impingement per unit area on the airfoil surface were calculated from the trajectories and presented to cover a large range of flight and atmospheric conditions. The effect of a change in airfoil thickness from 12 to 4 percent at 4 deg angle of attack is presented by comparing the impingement calculations for the NACA 65A004 airfoil with those for the NACA 65(sub 1)-208 and 65(sub 1)-212 airfoils. The rearward limit of impingement on the upper surface decreases as the airfoil thickness decreases. The rearward limit of impingement on the lower surface increases with a decrease in airfoil t hickness. The total water intercepted decreases as the airfoil thickness is decreased.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NACA-TN-3047
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  • 18
    Publication Date: 2019-06-28
    Description: An investigation has been made in the NACA Lewis icing research tunnel to determine the aerodynamic and icing characteristics of a full-scale induction-system air-scoop assembly incorporating a flush alternate inlet. The flush inlet was located immediately downstream of the offset ram inlet and included a 180 deg reversal and a 90 deg elbow in the ducting between inlet and carburetor top deck. The model also had a preheat-air inlet. The investigation was made over a range of mass-air- flow ratios of 0 to 0.8, angles of attack of 0 and 4 deg airspeeds of 150 to 270 miles per hour, air temperatures of 0 and 25 F various liquid-water contents, and droplet sizes. The ram inlet gave good pressure recovery in both clear air and icing but rapid blockage of the top-deck screen occurred during icing. The flush alternate inlet had poor pressure recovery in both clear air and icing. The greatest decreases in the alternate-inlet pressure recovery were obtained at icing conditions of low air temperature and high liquid-water content. No serious screen icing was observed with the alternate inlet. Pressure and temperature distributions on the carburetor top deck were determined using the preheat-air supply with the preheat- and alternate-inlet doors in various positions. No screen icing occurred when the preheat-air system was operated in combination with alternate-inlet air flow.
    Keywords: AERODYNAMICS
    Type: NACA-RM-E53E07
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  • 19
    Publication Date: 2019-07-11
    Description: An investigation was made to determine the static lateral stability and control characteristics of a l/6-scale model of the Republic XF-84H airplane with the propeller operating. The model had a 40deg swept wing of aspect ratio 3.45 and had a thin 3-blade supersonic-type propeller. Many modifications to the basic configuration were investigated in attempts to alleviate lateral and directional trim problems which appeared to be associated with propeller slipstream rotation. Although significant benefits were realized with several modifications, none of those tested would be expected to afford satisfactory behavior for all normal flight conditions. A marked left-wing roll-off tendency was indicated at high angles of attack for the basic model configuration. Projection of only the left slat was the most effective remedy found for this problem with the propeller operating. The use of differential wing-flap deflection also appeared to offer a promising means for reducing the roll-off tendency with power on. The large sidewash over the vertical tail, associated with slip- stream rotation, severely restricted the conditions for which directional , trim could be maintained. A small triangular dorsal fin, oriented opposite to the slipstream rotation, was found very effective in reducing the adverse sidewash flow at the tail.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53G10
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  • 20
    Publication Date: 2019-07-11
    Description: An investigation of the low-speed, power-off stability and control characteristics of a 1/10-scale model of the Convair YF-102 airplane has been made in the Langley free-flight tunnel. The model was flown over a lift-coefficient range from 0.5 to the stall in its basic configuration and with several modifications involving leading-edge slats and increases in vertical-tail size. Only relatively low-altitude conditions were simulated and no attempt was made to determine the effect of freeing the controls. The longitudinal stability characteristics of the model were considered satisfactory for all conditions investigated. The lateral stability characteristics were considered satisfactory for the basic configuration over the speed range investigated except near the stall, where large values of static directional instability caused the model to be directionally divergent. The addition of leading-edge slats or an 8-percent increase in vertical-tail area increased the angle of attack at which the model became directionally divergent. The use of leading-edge slats in combination with a 40-percent increase in vertical-tail size eliminated the directional divergence and produced satisfactory stability characteristics through the stall. The longitudinal and lateral control characteristics were generally satisfactory. Although the adverse sideslip characteristics for the model were considered satisfactory over the angle-of-attack range, analysis indicates that the adverse sideslip characteristics of the airplane may be objectionable at high angles of attack.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53L04
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  • 21
    Publication Date: 2019-07-11
    Description: An experimental investigation has been conducted in the Langley stability tunnel at low speed to determine the pitching stability derivatives of a 1/9-scale powered model of the Convair XFY-1 vertically rising airplane. Effects of thrust coefficient, control deflections, and propeller blade angle were investigated. The tests were made through an angle-of-attack range from about -4deg to 29deg, and the thrust coefficient range was from 0 to 0.7. In order to expedite distribution of these data, no analysis of the data has been prepared for this paper.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53G27
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  • 22
    Publication Date: 2019-07-11
    Description: An investigation has been conducted in the Langley 20-foot free-spinning tunnel on a l/23-scale model of the Lockheed XFV-1 airplane to determine the effects of control setting and movement upon the erect-spin and recovery characteristics for a range of airplane loading conditions. A windmilling propeller was simulated on the model for some of the tests. The investigation included determination of the size of tail parachute required for emergency recovery from demonstration spins. The tumbling tendencies of the model were also investigated. The results indicated that any erect or inverted spin obtained on the airplane will be satisfactorily terminated if recovery is attempted by full rudder reversal accompanied by simultaneous lateral and longitudinal movement of the stick to neutral, The model test results showed that an 11.5-foot flat-type tail parachute (drag coefficient approximately 0.73) with a 27.5-foot towline will be effective as an emergency spin-recovery device during demonstration spins of the airplane. The model results also indicate that the airplane will not tumble for any.loading condition indicated possible.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53G24
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  • 23
    Publication Date: 2019-07-11
    Description: An investigation is being conducted to determine the dynamic stability and control characteristics of a 0.13-scale flying model of the Convair XFY-1 vertically rising airplane. This paper presents the results of flight tests to determine the stability and control characteristics of the model during constant-altitude slow transitions from hovering to normal unstalled forward flight. The tests indicated that the airplane can be flown through the transition range fairly easily although some difficulty will probably encountered in controlling the yawing motions at angles of attack between about 60 and 40. An increase in the size of the vertical tail will not materially improve the controllability of the yawing motions in this range of angle of attack but the use of a yaw damper will make the yawing motions easy to control throughout the entire transitional flight range. The tests also indicated that the airplane can probably be flown sideways satisfactorily at speeds up to approximately 33 knots (full scale) with the normal control system and up to approximately 37 knots (full scale) with both elevons and rudders rigged to move differentially for roll control. At sideways speeds above these values, the airplane will have a strong tendency to diverge uncontrollably in roll.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53E18
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  • 24
    Publication Date: 2019-07-11
    Description: An experimental investigation has been conducted in the Langley stability tunnel at low speed to determine the rolling stability derivatives of a 1/9-scale powered model of the Convair XFY-1 vertically rising airplane. Effects of thrust coefficient were investigated for the complete model and for certain components of the model. Effects of control deflections and of propeller blade angle were investigated for the complete model. Most of the tests were made through an angle-of-attack range from about -4deg to 29deg, and the thrust coefficient range was from 0 to 0.7. In order to expedite distribution of these data, no analysis of the data has been prepared for this paper.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53E13
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  • 25
    Publication Date: 2019-07-11
    Description: An experimental investigation has been conducted in the Langley stability tunnel at low speed to deter+nine the yawing stability derivatives of a 1/9-scale powered model of the Convair XFY-1 vertically rising airplane. Effects of thrust coefficient were investigated for the complete model and for certain components of the model. Effects of control deflections and of propeller blade angle were investigated for the complete model. Most of the tests were made through an angle-of-attack range from about -4deg to 29deg, and the thrust coefficient range was from 0 to 0.7. In order to expedite distribution of these data, no analysis of the data has been prepared for this.
    Keywords: Aircraft Stability and Control
    Type: NACA-RM-SL53D01
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  • 26
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 52-52 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 27
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 109-112 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 28
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953) 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 29
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 113-114 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 30
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 114-124 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: In wasserdurchströmten Partikelschichten aus Glasperlen, Preßstoffkugeln und Tonkugeln wird die Verbreiterung eines Salzsäure- und eines Warmwasserstrahls gemessen. Das Konzentrationsfeld wird mit einer kleinen Elektrodenanordnung zur Messung der elektrischen Leitfähigkeit, das Temperaturfeld mit der Lötstelle eines Thermoelementes ausgefahren. Die eingeführten Indikatorströme verbreitern sich formal gemäß den Diffusionsgesetzen, aus den gemessenen Verteilungsprofilen lassen sich daher „Vermischungskoeffizienten“ gewinnen. Die Auswertungsmethode, welche über die hier behandelten Fälle hinaus von allgemeinerer Bedeutung ist, wird ausführlich dargestellt. Auf die grundsätzlichen Unterschiede zu Gas-Wirbelschichten wird hingewiesen, und anwendungstechnisch wichtige Gesichtspunkte werden herausgearbeitet.
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  • 31
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Um den Zerkleinerungsvorgang von Fleisch wirtschaftlich und materialgerecht zu gestalten, ist es notwendig, den Zusammenhang zwischen physikalischen Stoffwerten und physikalischen Einflüssen während des mechanischen Prozesses zu kennen. Struktur und Verhalten der Biokolloide werden an Hand von Fließkurven von Fleischbrei mit unterschiedlichem Wasser- und Fettgehalt erläutert.
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  • 32
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 12-18 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Das Multiplikationsprinzip für Trenneffekte wird am Beispiel der Destillation erläutert, und die entsprechenden Gleichungen für die Betriebsbedingungen werden angegeben. Sie lassen sich durch Anpassung der Parameter grundsätzlich auf alle nach dem Haarnadel-Gegenstromprinzip ausgeführten Trennvorgänge übertragen.
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  • 33
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 21-22 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Als Ergänzung zu einer früheren Veröffentlichung1 wurde das Verhalten von 14 legierten Metallstäben bei Temperaturen zwischen 400 und 500°C in strömendem Wassergas von 300 at geprüft.
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  • 34
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 33-35 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Nach einleitenden Bemerkungen zur Problematik des Schneidens von Weichstoffen in der Zerkleinerungstechnik werden Definitionen elementarer Grundgrößen angegeben, die für den Schneidvorgang maßgebend sind. Es wird die Existenz eines optimalen Schnittwinkels an zwei experimentellen Beispielen mit typisch entgegengesetztem Verhalten diskutiert. Abschließend werden weitere maßgebende Zusammenhänge angegeben.
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  • 35
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 25 (1953), S. 27-32 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Verschiedene Fakultäten bilden in Deutschland Ingenieure und Chemiker in der Chemieingenieur-Technik heran. Um die Zusammenarbeit beider in der Praxis möglichst gut vorzubereiten, bedarf es einer stets erneuten Diskussion der Unterrichtsziele, unter Einschluß von Grenzgebieten wie technischer Physik und praktischer Mathematik und unter besonderer Berücksichtigung der eine Mittlerstellung einnehmenden physikalischen Chemie. Am 17. Mai 1952 haben sich anläßlich der Frankfurter Tagungen Hochschullehrer aller beteiligten Fachrichtungen in größerer Zahl zu einer solchen Aussprache zusammengefunden, die durch grundlegende Referate vom Standpunkt des Verfahrensingenieurs, des chemischen Technologen und des physikalischen Chemikers eingeleitet wurde.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 38-43 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 48-51 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 51-51 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 53-53 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 56-60 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 61-65 
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    Notes: Es werden zwei Gruppen von Edelmetail - Legier ungen beschrieben, die sich bereits seit langem für Apparateteile, bei denen höchste Korrosionsbeständigkeit gefordert werden muß, bewährt haben und in Sonderfällen auch in Zukunft nicht zu entbehren sein werden: Platin und Platin-Legierungen bzw. Gold und Gold-Legierungen. Sodann wird über Versuche mit Au-Ag-Pd-Legierungen berichtet, die bemerkenswert hohe Korrosionsbeständigkeit gegen Salzsäure und andere starke Mineralsäuren aufweisen. Die neuen Legierungen sind imstande, in gewissen Fällen Platin und hochwertige Edelmetall-Legierungen zu ersetzen.
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    Notes: In dem Bewährungs-Wettstreit zwischen Glocken- und Siebböden sowie Füllkörpern scheinen letztere in der jüngsten Zeit aufgeholt zu haben. In ihrer Verwendbarkeit zur Stofftrennung unter sehr niedrigen, absoluten Drucken sind sie unübertroffen. Dennoch fehlt es nicht an Vorschlägen, das Anwendungsgebiet des Glockenbodens durch neuartige konstruktive Maßnahmen zu erweitern. Ein solcher Vorschlag stellt der Dampfprallboden dar. Über seine Belastbarkeit und seinen Wirkungsgrad wird berichtet. Ein Vergleich mit dem Glockenboden führt zu Betrachtungen über den Einfluß des Säulendurchmessers und der Glockenzahl. Versuchsergebnisse zeigen deren günstigsten Wert. Folgerungen aus diesem liefern sodann erstmalig einen theoretisch begründeten Zusammenhang zwischen Belastbarkeit, Bodenabstand und physikalischen Größen, welcher mit früher erhaltenen Versuchsergebnissen gut übereinstimmt.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 81-88 
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    Notes: Es wird ein Überblick über einen neuen Furfurol-Gewinnungsprozeß und über die Erarbeitung seiner optimalen Bedingungen gegeben. Der Prozeß erbringt in einem Arbeitszyklus von etwa 2 ½ h bei nur 1 ½-stündiger Dampfzuführung 9 bis 9,4% Furfurol aus Haferspelzen, bzw. 10,2 bis 10,5% Furfurol in einem Arbeitszyklus von höchstens 4 h bei nur dreistündiger Dampfzuführung. Das Verfahren erübrigt die Anschaffung kostspieliger, druckbeständiger Reaktionsgefäße und erfordert verhältnismäßig geringen Zeit- und Energieaufwand. Die Laboratoriumsversuche lassen darauf schließen, daß Reaktionsgefäße verwendet werden können, die mit keinem besonderen Schutz gegen den Angriff der Säure ausgestattet werden müssen. Wegen des geringen Aufwandes wird das Verfahren vor allem dann in Betracht kommen, wenn sperrige Rohmaterialien örtlich in nicht so großen Mengen anfallen, um die bisherigen Verfahren wirtschaftlich anwenden zu können.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 98-105 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 105-107 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 108-108 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 109-109 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 125-133 
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    Notes: Siedepunktsmessungen mit einer verbesserten Umlaufapparatur an den Systemen Benzol-Anilin und Cyclohexan-Anilin bei verschiedenen Gesamtdrucken zeigen, daß bei derartigen Gemischen mit großer Siedepunktsdifferenz der Komponenten auch bei Ausschaltung aller denkbaren Fehlerquellen und unter Berücksichtigung der Fugazitätskorrekturen keine thermodynamisch konsistenten Werte für die Aktivitätskoeffizienten erhalten werden, obwohl die Messungen reproduzierbar sind. Der sich einstellende stationäre Zustand entspricht danach offenbar nicht dem wahren Gleichgewichtszustand. Auch die von Rosanoff entwickelte Extrapolations methode ist für derartige Gemische nicht geeignet. Die Ergebnisse dynamischer Meßmethoden sind deshalb in solchen Fällen sehr kritisch zu bewerten.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 133-136 
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    Notes: Das Dampfdruckgleichgewicht von Zweistoffsystemen wird von kinetischen Gesichtspunkten aus betrachtet. Es ergibt sich dabei, daß sich azeotrope Gemische bei der Molekulardestillation nicht azeotrop zu verhalten brauchen. Andererseits kann für ein Gemisch, das bei normaler Destillation keinen azeotropen Punkt besitzt, bei Molekulardestillation ein solcher vorhanden sein. Gemische mit zwei (normalen) azeotropen Punkten sind am ehesten bei Systemen mit stark realer Dampfphase zu erwarten.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 142-142 
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    Notes: Es wird eine Apparatur beschrieben, mit der im Gegenstromverfahren aus einer salpetersauren Lösung von Ceriterden mit Diäthyläther das Cer4+ extrahiert werden kann.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 152-158 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 159-159 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 164-168 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 161-162 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 180-180 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 179-180 
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    Notes: Nach einem Überblick über die Entwicklung der Prallzerkleinerung folgt eine kurze Beschreibung der Prallbrecher, ihrer Bauarten, Arbeitsweise, Anwendungsmöglichkeiten sowie ihres Leistungsbedarfs. Schließlich werden Verschleißfragen und Wirtschaftlichkeit der Prallzerkleinerung erörtert.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 343-344 
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    Notes: Es werden Apparaturen zur Zerteilung von Gasen in Flüssigkeiten sowie der Wirkungsbereich dieser Anordnungen besprochen.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 351-355 
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    Notes: Es werden verschiedene Konstruktionen zur Beheizung insbesondere bei höheren Drucken und Temperaturen beschrieben.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 356-357 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 359-366 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 368-368 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 370-372 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 373-376 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 377-385 
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    Notes: Die Entwicklung schnellarbeitender Rechenmaschinen hat besonders in den USA Anlaß gegeben, diese in größerem Umfange auch zur Behandlung von Aufgaben der Chemie-Ingenieur-Technik, z. B. auf dem Gebiet der Destillation und Absorption, heranzuziehen. Sowohl Ziffernrechner als auch Analogiegeräte werden dafür verwendet. Von letzteren sind uns die mechanischen Integriergeräte schon vertraut. In der weiteren Entwicklung werden nun mittels elektrisch analoger Schaltungen Aufgaben des Wärmeübergangs, Probleme des elastischen Verhaltens, Diffusionsprobleme usw. zahlenmäßig gelöst. Aber auch ganz neue Möglichkeiten zur rechnerischen Behandlung, wie u. a. die Monte Carlo-Methode, scheinen sich auf Grund der mechanisierten Rechnung zu eröffnen.
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    Notes: Die Verwendung von ausgewalzten Thermoelementen zur Messung von Oberflächentemperaturen ermöglicht in vielen Fällen eine einfache und störungsfreie Anordnung der Meßstelle. Werden die Thermodrähte nach dem Auswalzen durchgeglüht, dann kann die ursprüngliche Eichkurve ohne Fehler weiterbenutzt werden. Der Meßfehler, der sich ergibt, wenn die Lötstellen mit Lack auf der Oberfläche befestigt werden, kann im voraus abgeschätzt werden. Bei kleineren Wärmeübergangszahlen kann er im allgemeinen vernachlässigt werden, so daß das Verfahren in diesem Fall besonders geeignet ist.
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    Notes: Viele für Chemie und Technik wichtige Stoffe, wie Emulsionen, Suspensionen, plastische Massen, Druckverdickungsmittel, Anstrichfarben und dgl. haben von normalviscosen Flüssigkeiten völlig abweichende Fließeigenschaften, die von wesentlicher Bedeutung bei ihrer technischen Anwendung sind. In der vorliegenden Arbeit wird ein für die labormäßige Verwendung entwickeltes Gerät beschrieben, das die Fließkurve, d. h. das Schubspannungs-Geschwindigkeitsgefälle-Diagramm, einer eingefüllten Stoffprobe vollautomatisch aufzunehmen gestattet. Zum Schluß werden einige Anwendungsbeispiele gegeben.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 395-396 
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    Notes: Durch zweckentsprechende Abänderung des Raseneisenerz-Verfahrens wurde das Problem der Abluftreinigung und der Schwefelgewinnung für die Viscose-Industrie durch die Phrix-Werke gelöst. Die Abluft wird zu 97 bis 98% vom Schwefelwasserstoff befreit. Dadurch können die behördlichen Auflagen hinsichtlich Schwefelwasserstoff-Ausstoß und -Konzentration nicht nur eingehalten, sondern weit unterschritten werden. Durch Entgasung der Abwässer und Reinigung der Abluft über Raseneisenerz wurden auch die Geruchsbelästigungen behoben. Der aus dem Schwefelwasserstoff gewonnene Schwefel fällt durch Extraktion vollkommen rein an und ist somit besonders hochwertig. Durch die Bindung des Schwefelwasserstoffs ist der Weg frei geworden, auch den in der Abluft noch enthaltenen Schwefelkohlenstoff zurückzugewinnen.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 217-218 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 228-228 
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    Notes: Die beschriebene Apparatur ist eine Kombination von einem Extraktions- und einem Wasserbestimmungsapparat. Sie gestattet in einem Arbeitsgang und in kurzer Zeit den Gehalt an Wasser, Bindemittel und Füllstoff von Emulsionen zu bestimmen. Die Analysenmethode wird angegeben.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 426-426 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 429-430 
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 553-556 
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    Notes: Die Entwicklung der Forschung auf dem Gebiet des chemischen Apparatewesens und der Verfahrenstechnik in Deutschland wird an Hand der entscheidenden Leistungen und Schöpfungen der Pioniere auf diesem Gebiet, der durch sie ins Leben gerufenen Organisationen, der von ihnen geleiteten Institute und des einschlägigen Schrifttums in Zeitschriften, Büchern und Sammelwerken geschildert.
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    Notes: Für den Stoffaustausch zwischen schwerlöslichen Gasen und Flüssigkeiten in Rieseltürmen werden in Analogie zum Wärmeübergang dimensionslose Gleichungen angegeben. Es werden in der Literatur beschriebene Untersuchungen ausgewertet und der Einfluß der Dimensionen der Apparate und des Betriebsdrucks herausgestellt.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 573-574 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es werden Betriebserfahrungen mit Dünnschichtverdampfern mitgeteilt.
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  • 79
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 565-568 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Nußelts Filmhauttheorie1 zur Berechnung der Wärmeübergangszahl von kondensierendem Dampf gab den Anstoß zu zahlreichen Forschungen, welche einen Vergleich zwischen Theorie und Versuch bezweckten. Sie alle bezogen sich auf gasfreien Dampf. In den Apparaten der Technik schlägt sich jedoch Dampf nieder, welcher Luft und andere nicht kondensierende Stoffe enthält. In einer für ruhenden Dampf geltenden Untersuchung2 ist wohl auf die Bedeutung des Problemes hingewiesen worden. In den industriellen Einrichtungen strömt aber der Dampf, und längs des Strömungsweges ändert sich in dem Maße die Gaskonzentration, in welchem Dampf kondensiert. Dieser praktisch bedeutsame Fall ist im Rahmen planmäßiger Messungen und Auswertungen geklärt wordenDen Herren Dipl.-Ing. E. Jonkanski, G. Murmann und G. Braband sowie Herrn cand. chem. ing. W. Rotthauwe sei an dieser Stelle für die Mitwirkung bei der Durchführung und Auswertung der Versuche freundlichst gedankt. Besonderer Dank gebührt der DECHEMA, Frankfurt/Main, und der Deutschen Forschungsgemeinschaft, Bad Godesberg, für ihre finanziellen und sachlichen Unterstützungen. Die Mannheimer Motor-Condensator Compagnie stellte in dankenswerter Weise ein geeignetes Gebläse zur Verfügung.  -  Über die Untersuchungen soll ausführlich in einer Dechema-Monographie berichtet werden. Die vorliegende Arbeit ist ein zusammenfassender Auszug., über welche ausführlich an anderer Stelle berichtet wird3. Im folgenden werden die Ergebnisse zusammenfassend aufgeführt.
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  • 80
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 587-590 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Für den nicht stationär betriebenen Umlaufwärmeaustauscher, wie er als Vorwärmer oder Kühler von flüssigen Behälterinhalten, z. B. Laugenvorwärmer für Zellstoff-Kocher, in der chemischen Industrie Verwendung findet, werden Gleichungen für das mittlere Temperaturgefälle sowie für die gegenseitige Abhängigkeit der wichtigen Betriebsgrößen abgeleitet. Ein Diagramm zur Ermittlung des Temperaturgefälles bei Gleich-, Gegen- und Kreuzstrom erleichtert die Anwendung der Gleichungen.
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  • 81
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Es werden aus den Grundgleichungen für die Wärmeaustauscher neue thermodynamische Ähnlichkeitskenngrößen abgeleitet und durch geometrische Betrachtungen ihre Beziehungen zueinander festgestellt.
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  • 82
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 312-312 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 83
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Ergebnisse einer experimentellen Untersuchung über die Beziehung zwischen den Veränderlichen der absatzweise arbeitenden Destillation werden besprochen. Dabei handelt es sich um den Einfluß der theoretischen Bodenzahl, des Rücklaufverhältnisses, des „Holdup“ (Betriebsinhalt der Kolonne) und der relativen Flüchtigkeit auf die Trennschärfe. Aus der Untersuchung geht hervor, daß der Holdup bei hohen Rücklaufverhältnissen die Trennschärfe ungünstig beeinflußt, jedoch bei niedrigen Rücklaufverhältnissen günstig wirkt. Der Einfluß des Holdup nimmt mit der theoretischen Bodenzahl der Destillationskolonne zu. Bei sehr großem Holdup (etwa 50% des Einsatzes oder mehr) hat das Rücklaufverhältnis fast gar keinen Einfluß auf die Trennschärfe. Die experimentellen Ergebnisse wurden in befriedigender Weise in eine Gleichung, die sich zur Berechnung einer absatzweise arbeitenden Destillationsapparatur zur Trennung von Zweistoff- oder Vielstoffgemischen anwenden läßt, und die auch in Nomogrammform ausgearbeitet wurde, zusammengefaßt.
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  • 84
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 313-316 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Für die „effektive Wärmeleitfähigkeit“ von Wirbelschichten, die nur zum geringsten Teil auf Wärmeleitung im Gas und in den Teilchen, zum größten Teil aber auf den Wärmetransport durch die Bewegung der Feststoffteilchen zurückzuführen ist, wird der Ausdruck „Wärmetransportfähigkeit“ vorgeschlagen. Es wird eine Meßanordnung beschrieben, die es ermöglicht, den Wärmefluß in Wirbelschichten im stationären Zustand experimentell zu prüfen, wobei der Wärmetransport auf eine Dimension beschränkt bleibt. Die rechnerische Auswertung der Messungen wird damit wesentlich vereinfacht. Der Wärmeübergangskoeffizient Wand - Wirbelschicht und die Wärmetransportfähigkeit weisen bei steigender Gasgeschwindigkeit bei einer bestimmten Ausdehnung der Wirbelschicht, die einer minimalen Verweilzeit des Gases entspricht, einen maximalen Wert auf. Der Wärmeübergangskoeffizient Teilchenoberfläche - Gasstrom ist in Übereinstimmung mit Angaben anderer Autoren sehr klein. Die Wärmetransportfähigkeit der Schichten ist sehr groß und entspricht einem Vielfachen der Wärmeleitfähigkeit von metallischem Silber.
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  • 85
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 331-341 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Der Hydrozyklon ist als gleichwertiges Gerät an die Seite der Zentrifuge getreten. Die funktionsmäßigen Unterschiede und die Abgrenzung der Anwendungsgebiete für beide Arten Zentrifugalabscheider werden herausgearbeitet. Die konstruktive Entwicklung des Hydrozyklons wird gezeigt. Zur Zusammenfassung aller empirischen Relationen über die Abscheidungskorngrößen in Zyklonen wird eine dimensionslose Kenngröße für die Separation eingeführt. Die Funktion eines Abscheiders kann aus dem Rammler-Bennett-Netz beurteilt werden. Schließlich wird über Betriebsfragen des Hydrozyklons und seine bisher erprobten Anwendungen referiert.
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  • 86
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 345-346 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Der Mischer enthält zwei Mischschnecken in zwei nebeneinanderliegenden Trögen, durch deren gegenläufiges Arbeiten eine intensive Mischung erreicht wird, und deren Leistungsunterschied für den Durchsatz maßgebend ist. Der Mischer arbeitet absatzweise und stetig.
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  • 87
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 349-350 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zum Auswaschen von Filterkuchen wurde das Zellenwaschband entwickelt, das sich insbesondere in Verbindung mit dem kontinuierlich arbeitenden Trommelfilter bewährt hat.
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  • 88
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 346-348 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bei der direkt wirkenden Dosierbandwaage mit Geschwindigkeitssteuerung sind Zuteilorgan und Waage in einem Element vereinigt. Die Waage ermöglicht dadurch eine kontinuierliche Dosierung. Die erreichte Meßgenauigkeit ist für die meisten chemischen Verfahren ausreichend.
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  • 89
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 355-356 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Die Bestrebungen, elastische, nichtmetallische Dichtungsringe an Stelle metallischer in Schiebern zu verwenden, führten zur Schaffung des Flachplattenschiebers. Bauweisen für staubfreie und staubhaltige Medien werden beschrieben.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 357-359 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 91
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 366-367 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 92
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 369-370 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 93
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    Chemie Ingenieur Technik - CIT 25 (1953) 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 94
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 394-394 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 95
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 396-396 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 96
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 717-720 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Zur Darstellung von Dampfdruckkurven wird eine einfache Formel entwickelt, die auch den Verlauf der Ableitung des Dampfdrucks berücksichtigt. Die neue Dampfdruckformel enthält nur zwei (leicht zu bestimmende) Konstanten, deren physikalische Bedeutung angegeben wird. Bei einfachem Aufbau gibt die Formel den weiten Druckbereich zwischen dem kritischen Punkt und etwa dem normalen Siedepunkt ausgezeichnet wieder.
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 730-730 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 98
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 749-758 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 416-420 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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  • 100
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    Chemie Ingenieur Technik - CIT 25 (1953), S. 407-416 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Nach einer Übersicht über die „Halle der Chemie“, in der die deutsche chemische Industrie anläßlich der diesjährigen Technischen Messe Hannover zum zweiten Male geschlossen mit ihren Leistungen an die Öffentlichkeit trat, wird über einige neuere Entwicklungen berichtet, die folgende Geräte betreffen: Kraft- und Wärmeerzeugung, Zerkleinerungs- und Mischapparate, Armaturen, Pumpen, Verdichter und Vakuumgeräte, betriebstechnische und laboratoriumsmäßige Meß- und Regelgeräte sowie allgemeinen Fabrikbedarf. Bei der Fülle des Gezeigten erhebt dieser Beitrag keinen Anspruch auf Vollständigkeit.
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