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  • General Chemistry  (459)
  • Industrial Chemistry  (282)
  • Aircraft Propulsion and Power  (12)
  • 1950-1954  (753)
  • 1951  (753)
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  • 1950-1954  (753)
Year
  • 1
    Publication Date: 2019-06-28
    Description: A comparison of the operating characteristics of 75-millimeter-bore (size 215) cylindrical-roller one-piece inner-race-riding cage-type bearings was made using a laboratory test rig and a turbojet engine. Cooling correlation parameters were determined by means of dimensional analysis, and the generalized results for both the inner- and outer-race bearing operating temperatures are compared for the laboratory test rig and the turbojet engine. Inner- and outer-race cooling-correlation curves were obtained for the turbojet-engine turbine-roller bearing with the same inner- and outer-race correlation parameters and exponents as those determined for the laboratory test-rig bearing. The inner- and outer-race turbine roller-bearing temperatures may be predicted from a single curve, regardless of variations in speed, load, oil flow, oil inlet temperature, oil inlet viscosity, oil-jet diameter or any combination of these parameters. The turbojet-engine turbine-roller-bearing inner-race temperatures were 30 to 60 F greater than the outer-race-maximum temperatures, the exact values depending on the operating condition and oil viscosity; these results are in contrast to the laboratory test-rig results where the inner-race temperatures were less than the outer-race-maximum temperatures. The turbojet-engine turbine-roller bearing, maximum outer-race circumferential temperature variation was approximately 30 F for each of the oils used. The effect of oil viscosity on inner- and outer-race turbojet-engine turbine-roller-bearing temperatures was found to be significant. With the lower viscosity oil (6x10(exp -7) reyns (4.9 centistokes) at 100 F; viscosity index, 83), the inner-race temperature was approximately 30 to 35 F less than with the higher viscosity oil (53x10(exp -7) reyns (42.8 centistokes) at 100 F; viscosity index, 150); whereas the outer-race-maximum temperatures were 12 to 28 F lower with the lower viscosity oil over the DN range investigated.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-E51I05
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  • 2
    Publication Date: 2019-06-28
    Description: Tests of two propellers having two blades and differing only in the inboard pitch distribution were made in the Langley 8-foot highspeed tunnel to determine the effect of inboard pitch distribution on propeller performance. propeller was designed for operation in the reduced velocity region ahead of an NACA cowling; the inboard pitch distribution of the modified propeller was increased for operation at or near free-stream velocities, such as would be obtained in a pusher installation. conditions covering climb, cruise, and high-speed operation. Wake surveys were taken behind the propellers in order to determine the distribution of thrust along the blades and to aid in the analysis of the results. Test results showed that the modified propeller was about 2.5 percent less efficient for a typical climb condition at all altitudes, 2 percent more efficient for one cruise condition, and 5 percent more efficient for high-speed operation. speed condition, the modified propeller showed a 6-percent loss in efficiency due to compressibility; whereas the original propeller showed an 11-percent efficiency loss due to compressiblity. The lower compressibility loss for the modified propeller resulted from the fact that the inboard sections of this propeller could operate at increased thrust loading after compressibility losses had occurred at the outboard sections.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TN-2268
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  • 3
    Publication Date: 2019-06-27
    Description: An experimental investigation was conducted to determine the cooling effectiveness of a wide variety of air-cooled turbine-blade configurations. The blades, which were tested in the turbine of a - commercial turbojet engine that was modified for this investigation by replacing two of the original blades with air-cooled blades located diametrically opposite each other, are untwisted, have no aerodynamic taper, and have essentially the same external profile. The cooling-passage configuration is different for each blade, however. The fabrication procedures were varied and often unique. The blades were fabricated using methods most suitable for obtaining a small number of blades for use in the cooling investigations and therefore not all the fabrication procedures would be directly applicable to production processes, although some of the ideas and steps might be useful. Blade shells were obtained by both casting and forming. The cast shells were either welded to the blade base or cast integrally with the base. The formed shells were attached to the base by a brazing and two welding methods. Additional surface area was supplied in the coolant passages by the addition of fins or tubes that were S-brazed. to the shell. A number of blades with special leading- and trailing-edge designs that provided added cooling to these areas were fabricated. The cooling effectiveness and purposes of the various blade configurations are discussed briefly.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-E51E23 , REPT-2203
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  • 4
    Publication Date: 2019-07-11
    Description: Strain-gages were used to measure blade vibrations causing failures in the third stage of a production 11-stage axial-flow compressor. After the serious third-stage vibration was detected, a series of investigations were conducted with second-stage vane assemblies of varying angles of incidence. Curves presented herein show the effect of varying the angle of incidence of second-stage vane assembly on third-stage rotor-blade vibration amplitude and engine performance. A minimum vibration amplitude was obtained without greatly affecting the engine performance with a second-stage vane assembly of 9deg. greater angle of incidence than the assembly normally furnished with the engine.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE51F08
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  • 5
    Publication Date: 2019-07-11
    Description: An investigation of the altitude performance characteristics of an Allison J35-A-17 turbojet engines have been conducted in an altitude chamber at the NACA Lewis laboratory. Engine performance was obtained over a range of altitudes from 20,000 to 60,000 feet at a flight Mach number of 0.62 and a range of flight Mach numbers from 0.42 to 1.22 at an altitude of 30,000 feet. The performance of the engine over the range investigated could be generalized up to an altitude of 30,000 feet. Performance of the engine at any flight Mach number in the range investigated can be predicted for those operating condition a t which critical flow exits in the exhaust nozzle with the exception of the variables corrected net thrust, and net-thrust specific fuel consumption.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-E50I15
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  • 6
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    In:  CASI
    Publication Date: 2019-08-13
    Description: The performance of a jet power plant consisting of a compressor and a turbine is determined by the characteristic curves of these component parts and is controllable by the characteristics of the compressor and the turbine i n relation t o each other. The normal. output, overload, and throttled load of the Jet power plant are obtained on the basis of assumed straight-line characteristics.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TM-1258
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  • 7
    Publication Date: 2019-07-11
    Description: This report presents a compilation of static sea-level data on existing or designed American and British axial-flow turbojet engines in terms of basic engine parameters such as thrust and air flow. In the data presented, changes in the over-U engine performance with time sre examined as well as the relation of the various engine parameters to each other.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-51K29
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  • 8
    Publication Date: 2019-07-12
    Description: Component data on the J35-A-23 compressor and two-stage turbine were used to determine the problems in matching the two units for operatio n in a turbojet engine. Possible operating regions were determined an d an equilibrium operating line was also determined for the assumed c onditions of zero flight speed and a jet nozzle area approximately 5. 5 percent greater than the wide-open nozzle area.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-E51H15
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  • 9
    Publication Date: 2019-07-12
    Description: A .General Electric fuel and torque regulator was tested in conjunction with a T31-3 turbine-propeller engine in the sea-level static test stand at the NACA Lewis laboratory. The engine and control were operated over the entire speed range: 11,000 rpm, nominal flight idle, to 13,000 rpm, full power. Steady-state and transient data were recorded and are presented with a description of the four control loops being used in the system. Results of this investigation indicated that single-lever control operation was satisfactory under conditions of test. Transient data presented showed that turbine-outlet temperature did overshoot maximum operating value on acceleration but that the time duration of overshoot did not exceed approximately 1 second. This temperature limiting resulted from a control on fuel flow as a function of engine speed. Speed and torque first reached their desired values 0.4 second from the time of change in power-setting lever position. Maximum speed overshoot was 3 percent.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE1H20
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  • 10
    Publication Date: 2019-07-12
    Description: At the request of the Bureau of Aeronautics, Department of the Navy, an investigation of the Westinghouse XJ34-WE-32 turbojet engine is being conducted in the NACA Lewis altitude wind tunnel to determine the steady-state and transient operating characteristics of the controlled and uncontrolled engine at various altitudes and ram pressure ratios. As part of this program, transient performance data that illustrate the operation of the engine is obtained in the form of oscillographic traces. Similar data for engine operation i n the afterburning range, covering a range of throttle settings from the minimum value giving rated speed (throttle position, 72 degrees) to full afterburning (throttle position, ll0 degrees), is presented herein. These data thus serve to indicate the transient characteristics of the engine when the throttle is advance into, withdrawn from, and moved within the afterburning range in a stepwise manner, as well as the steady-state stability of the engine during afterburning .
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE50L29
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  • 11
    Publication Date: 2019-07-12
    Description: This report summarizes the effects of fuel volatility and engine design variables on the problem of starting gas-turbine engines at sea-level and altitude conditions. The starting operation for engines with tubular combustors is considered as three steps; namely, (1) ignition of a fuel-air mixture in the combustor, (2) propagation of flame through cross-fire tubes to all combustors, and (3) acceleration of the engine from windmilling or starting speed to the operating speed range. Pertinent data from laboratory researches, single-combustor studies, and full-scale engine investigations are presented on each phase of the starting problem.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE51B02
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  • 12
    Publication Date: 2019-07-12
    Description: An investigation was conducted at the NACA Lewis laboratory to determine whether simulated porous gas-turbine blades fabricated by the Eaton Manufacturing Company of Cleveland, Ohio would be satisfactory with respect to coolant flow for application in gas-turbine engines. These blades simulated porous turbine blades by forcing the cooling air onto the blade surface through a large number of chordwise openings or slits between laminations of sheet metal or wire. This type of surface has a finite number of openings, whereas a porous surface has an almost infinite number of smaller openings for the coolant flow. The investigation showed that a blade made of sheet-metal laminations stacked on a support member that passed up through the coolant passage was completely unsatisfactory because of extremely poor coolant flow distribution over the blade surface. The flow distribution for two wire-wound blades was more uniform, but the pressure drop between the coolant supply pressure and the local pressure on the outside of the blades was too low by a factor ranging from 3 to 3.5 for the required coolant flow rates. The pressure drop could be increased by forcing the wires closer together during blade fabrication.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE51C13
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  • 13
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 23 (1951) 
    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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  • 14
    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 im folgenden erörterten Fragen sind nicht nur deswegen Grenzprobleme, weil es sich bei ihnen um Transportvorgänge durch Phasengrenzen handelt. Vielmehr bildet dieses Gebiet auch eine Berührungsgrenze zwischen den Ingenieurwissenschaften und der physikalischen Chemie. Von erstgenannter Seite wurde der betreffende Fragenkreis in letzter Zeit mehrfach zusammenfassend dargestellt1. Hier möge er mehr vom Standpunkt der physikalischen Chemie aus und unter Bevorzugung der bisher noch nicht befriedigend gelösten Probleme behandelt werden. Gerade dieses Gebiet ist besonders geeignet, die Fruchtbarkeit einer Zusammenarbeit beider Wissenschaften im Rahmen der Verfahrenstechnik aufzuzeigen.
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  • 15
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 21-22 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 16
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 23-24 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 17
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 24-24 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 18
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 27-27 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 19
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 24-25 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 20
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 28-32 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 21
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 57-58 
    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 Verwendung von Spezialgraphit hat bei Absorbern und Verbrennungsöfen für die Chlorwasserstoff-Synthese zu wesentlich leistungsfähigeren und raumsparenden Konstruktionen geführt, über die nachfolgend berichtet wird.
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  • 22
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 59-64 
    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 bisher vorliegenden Meßergebnisse für die Wärmeleitfähigkeit der wäßrigen Lösungen von Salzen, Säuren und Basen werden kritisch verglichen und in einheitlicher Form dargestellt. Auf Grund einfacher theoretischer Betrachtungen ist es möglich, diese wichtige Größe für zahlreiche noch nicht untersuchte Lösungen zuverlässig abzuschätzen.
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  • 23
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 68-68 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 24
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 68-72 
    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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  • 25
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 73-75 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 26
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 72-72 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 27
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 75-76 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 28
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 72-72 
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  • 29
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    Chemie Ingenieur Technik - CIT 23 (1951) 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 30
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 76-80 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 31
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 111-111 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 32
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 112-113 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Im Laufe von Untersuchungen über die Phasengleichgewichte in ternären und polynären Systemen war es notwendig, die Löslichkeit von Kohlenwasserstoffen in Methyl- und Benzylalkohol zu untersuchen. Außer Gesichtspunkten allgemeiner Natur spielte bei dieser Arbeit auch die Erwägung eine Rolle, gegebenenfalls neue analytische und präparative Möglichkeiten zu gewinnen.
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  • 33
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 113-115 
    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 die Fragen nach dem Kältebedarf und der zweckmäßigsten Soletemperatur bei der Ausrüstung von Kunstfaserfabriken mit Kältemaschinenanlagen zu klären, wurden Untersuchungen an Xanthatknetern durchgeführt, über die nachstehend berichtet wird.
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  • 34
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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    Notes: An zahlreichen Beispielen wird gezeigt, daß die Normung in der Verfahrenstechnik und im Apparatebau sich nicht allein auf Größe und Form von Flanschen, Rohren, Nieten und anderen Maschinenelementen beschränken darf, sondern daß sie zweckmäßigerweise auch ganze Apparaturen umfassen sollte.
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  • 35
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 116-117 
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  • 36
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 120-120 
    ISSN: 0009-286X
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 120-120 
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  • 38
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 139-141 
    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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  • 39
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 141-141 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 40
    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 dem in der vorliegenden Arbeit erstmalig gelösten Festigkeitsproblem handelt es sich um Fragen, die bei der Berechnung solcher Hochdruckrohre von Bedeutung sind, die im Gegensatz zu den bisher verwendeten geschmiedeten Massivrohren aus einem dünnwandigen Kernrohr bestehen, auf das  -  je nach der Höhe des Innendrucks  -  eine mehr oder weniger große Zahl von Bändern aufgewickelt wird. Außerdem spielt das Problem auch bei anders gearteten Aufgaben eine Rolle, auf die kurz hingewiesen wird.
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    Chemie Ingenieur Technik - CIT 23 (1951) 
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  • 42
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 147-152 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 157-160 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bei Vollschmierung ist die Temperaturabhängigkeit der Viscosität von großer Bedeutung, für deren Charakterisierung besondere Kennziffer-Systeme entwickelt wurden. Die gebräuchlichen Systeme versagen jedoch bei sehr niedrigviscosen Flüssigkeiten, bei Ölen mit sehr flacher oder sehr steiler Viscositäts-Temperatur-Kurve und bei Ölen mit hoher Dichte. In diesen Fällen sind die Normalöl-Relation bzw. die Normalöl-Proportion besser geeignet.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 165-165 
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    Notes: Auf Grund der Margulesschen Interpolationsformeln zur Berechnung der Dampfdrucke von Zweistoffgemischen bei konstanter Temperatur wird gezeigt, daß sich ganz allgemein der Trennfaktor als eine Exponentialfunktion mathematisch darstellen läßt. Ihr Exponent ist eine Funktion von Koeffizienten, deren Größe wichtige Schlüsse auf das allgemeine physikalisch-chemische Verhalten von Zweistoffgemischen zu ziehen gestattet. Die mathematische Darstellung läßt sich auch auf die üblichen Gleichgewichtskurven bei konstantem Druck anwenden. Mehrere praktische Beispiele bekannter Kurven werden mathematisch dargestellt.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 171-171 
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    Notes: Versuche über den Wärmeübergang in Rührgefäßen, vor längerer Zeit beim Werk Hoechst der ehemaligen I.G. Farbenindustrie A.G. durchgeführtDie Versuche wurden auf Anregung von Dr.-Ing. S. KießKalt in den Jahren 1935/38 unter Leitung des Verfassers durchgeführt. Die Messungen machten die herren Dipl.-Ing. D. Bachmann, O. Kramer und F. Bieger., werden hier erstmals veröffentlicht und dabei verglichen mit Messungen über den Wärmeübergang an Modellapparaten von Chilton, Drew und Jebens bei der E. J. Du Pont de Nemours u. Comp., Wilmington, Del., sowie von Cummings und West bei der Rohm & Haas Comp., Philadelphia. Das Problem des Wärmeaustausches bei verschiedener Rührerdrehzahl und Temperatur ist nunmehr mit praktisch genügender Genauigkeit gelöst.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 194-194 
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    Notes: Für die Synthese am Eisenkatalysator sind die Art der Inbetriebnahme und die Betriebsbedingungen von ausschlaggebender Bedeutung. Es werden die Probleme der Formierung und der von den Betriebsbedingungen abhängigen Arbeitsweise des Katalysators dargelegt. Für drei der entwickelten Syntheseverfahren werden in zahlenmäßig belegten Beispielen die Ergebnisse und die Betriebsbedingungen mitgeteilt.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 195-196 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 196-200 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 272-276 
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    Notes: Es wurden ein i, s-Diagramm sowie eine Druck- und eine Temperaturtafel für das Sattdampf-Gebiet von Benzol aufgestellt. Berechnungsgrundlagen, Diagramm und Tafeln werden nachstehend wiedergegeben.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 276-278 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 278-278 
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    Notes: Die Kunstfaser-Herstellung beruhte bis zur Mitte der 20iger Jahre dieses Jahrhunderts auf reiner Empirie. Wissenschaftliche Forschungsarbeit von Chemikern und Ingenieuren haben dann aber die Technik der Kunstfaser-Erzeugung teilweise grundlegend geändert. Moderne Kunstfaser-Erzeugungsanlagen kombinieren die ursprünglich zahlreichen einzelnen Arbeitsprozesse zu einem kontinuierlichen Betrieb. Die verfahrenstechnischen wirtschaftlichen Auswirkungen dieser Entwicklung werden dargestellt.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 281-281 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 282-282 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 283-288 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 294-295 
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    Notes: Mittels der Diasolyse lassen sich die Arbeitsverfahren zur Gewinnung von Wirkstoffen aus Pflanzen oder tierischen Produkten bedeutend vereinfachen. Zur Diasolyse im Laboratoriumsmaßstab eignet sich besonders der Diasolyseaufsatz, während die Diasolyseapparatur auch in halbtechnischen und technischen Ausmaßen erstellt werden kann. Zur Vorbehandlung der Ausgangsmaterialien läßt sich der Extraktionsapparat verwenden.
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    Notes: Die nachfolgend abgeleiteten Formeln für den Druckverlust sind von größter Allgemeingültigkeit und lassen sich nicht nur auf alle möglichen Füllkörperformen und -größen, sondern auch auf die verschiedensten Füllkörper- und Schüttgutgemenge übertragen. Die meisten der in der Praxis auftretenden Fälle lassen sich in zwei große Gruppen, und zwar in Säulen mit abgerundeten und mit scharfkantigen Füllkörpern einordnen, für die sich annähernd die gleichen Widerstandsbeiwerte ergeben. Eine Berechnung der Druckverluste ist auch im Falle der Berieselung mit ausreichender Genauigkeit möglich.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 296-298 
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    Notes: Es werden drei Verfahren zur Entsalzung von Meerwasser beschrieben. Das Ausfrieren in Blockzellen mit und ohne Luftbewegung befriedigt nicht. Das Ringzellenverfahren mit temperiertem Schleudern und Abdecken sowie das Rührgefrierverfahren mit Schleudern und Abdecken ergeben befriedigende Salzkonzentrationen von 0,14%, was für Trinkwasserzwecke geeignet ist.
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    Notes: Es wird eine vielstufige, auch zur Verarbeitung größerer Mengen geeignete Verteilungsapparatur beschrieben, die durch große Anpassungsfähigkeit und leichte Zugänglichkeit aller Teile gekennzeichnet ist. Nach der Beschickung arbeitet die Apparatur vollautomatisch, fast ohne Wartung. Sie ist vornehmlich für präparative Zwecke geeignet.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 307-312 
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    Notes: In Analogie zu den Destillations- bzw. Dampflinien der einfachen Destillation werden Rektifikations- bzw. Destillatlinien definiert, welche die Änderung der Zusammensetzung des Destillationsrückstandes (Blaseninhalts) bzw. des Destillats während der Rektifikation homogener Dreistoffgemische angeben. Die Diskussion der Differentialgleichung der Rektifikationslinien für die Umgebung der Eckpunkte des Darstellungsdreiecks und der binären azeotropen Punkte erlaubt die Aufstellung allgemeiner Gesetze, denen die Rektifikationslinienscharen gehorchen. Auf diese Weise läßt sich aus dem Destillationslinienfeld der Charakter des zugehörigen Rektifikationslinienfeldes für ein gegebenes Rücklaufverhältnis und eine gegebene Bodenzahl ableiten. Mit den Rektifikationsdiagrammen lassen sich alle Experimente deuten, die mit wirksamen Kolonnen an z. T. komplizierten Dreistoffgemischen durchgeführt worden sind. Das zeitweilige Sinken der Siedetemperatur des Destillats und andere Erscheinungen, für die es kein Analogon bei Zweistoffgemischen gibt, werden im Rahmen der vorliegenden Theorie verständlich. Eigene Rektifikationsversuche an dem System Methanol-Aceton-Chloroform bestätigen die Richtigkeit der behaupteten Zusammenhänge.
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    Notes: Nach einem Hinweis auf die Bedeutung kontinuierlicher Sauerstoff-Registrierungen in den Betriebswässern von Hochdruckkraftwerken wird eine neue elektrische Sauerstoff-Meßanlage beschrieben, die sich im Kraftwerksbetrieb bei Sauerstoff-Gehalten zwischen 5 und 60 γ/l bereits bewährt hat. Die Umeichung der elektrischen Werte auf γO2/l wird mit der Tolidin-Rhodanid-Methode vorgenommen.
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    Notes: Das beschriebene einfache stabförmige pH-Mcßgerät mit trockener Antimon-Silberchlorid-Kette kann direkt in die Meßflüssigkeit eingetaucht werden. Der pH-Wert ist sofort auf einem technischen Drehspulinstrument abzulesen, das an die Kette ohne weitere Zwischenglieder angeschlossen wird. Die Polarisierbarkeit ist infolge der stark vergrößerten Oberfläche der Silberchlorid-Elektrode nur gering. Es können 15 × 10-6 A zum Betriebe eines technischen Anzeigeinstrumentes dauernd entnommen werden. Einige Anwendungsfälle werden besprochen.
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    Notes: Im folgenden wird vor allem das Warmverformen von Rohren und Rohrverbindungen aus Plexiglas besprochen. Bewährte Anwendungsbeispiele von Plexiglas in der chemischen Industrie werden gezeigt.
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    Notes: Es wird über die praktische Anwendung des bei der BASF von Wolf und Rumpf entwickelten Wirbelsichters berichtet. Die Sichtwirkung wird dabei durch eine ebene spiralförmige Luftströmung erzielt, die rechnerisch genau zu erfassen ist. Die Hauptanwendungsgebiete des Sichters, die Möglichkeiten zur Regelung der Korngrenze sowie die Schwierigkeiten, die durch schlechte Dispergierung mancher Sichtgüter, Verschleiß des Sichters usw. auftreten, werden eingehend besprochen.
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    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 356-360 
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    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Chemie Ingenieur Technik - CIT 23 (1951) 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 465-469 
    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 Wärmeleitfähigkeit der Gemische von Methyl-, Äthyl-, Normalpropyl- und Isopropylalkohol, Äthylen- und Propylenglykol, Glycerin und Aceton mit Wasser wurde in Abhängigkeit von der Konzentration und Temperatur gemessen. Die Ergebnisse werden in übersichtlichen Tabellen zusammengefaßt und mit den bereits vorliegenden Literaturwerten kritisch verglichen. Die von W. Kraus [10] beobachtete Anomalie im Temperaturverlauf der Wärmeleitfähigkeit von reinem Äthylen- bzw. Propylenglykol konnte nicht bestätigt werden.
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 480-481 
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    Keywords: Chemistry ; Industrial Chemistry
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 478-478 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 479-480 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 477-478 
    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 23 (1951), S. 481-481 
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    Source: Wiley InterScience Backfile Collection 1832-2000
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 483-488 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 482-482 
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    Chemie Ingenieur Technik - CIT 23 (1951), S. 489-490 
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    Chemie Ingenieur Technik - CIT 23 (1951) 
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    Keywords: Chemistry ; Industrial Chemistry
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    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 Vervollkommnung und konstruktive Durchbildung moderner Maschinen verlangt einen wartungsfreien Betrieb der Abdichtungen über eine längere Betriebszeit. Es wird an ausgeführten Beispielen gezeigt, daß nachziehbare Stopfbüchsen mit Erfolg durch selbsttätig arbeitende Federpackungen und Schleifringpackungen ersetzt werden können.
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