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  • Industrial Chemistry  (296)
  • Inorganic Chemistry  (203)
  • Aircraft Propulsion and Power  (11)
  • 1945-1949  (510)
  • 1935-1939
  • 1930-1934
  • 1949  (510)
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  • 1945-1949  (510)
  • 1935-1939
  • 1930-1934
Year
  • 1
    Publication Date: 2019-07-12
    Description: An altitude-test-chamber investigation was conducted to determine the operational and performance characteristics of a McDonnell afterburner with a fixed-area exhaust nozzle on a J34 engine. At rated engine speed, the altitude limit, as determined by combustion blow-out, occurred as a band of unstable operation of about 6000-foot altitude in width with minimum altitude limits from 31,000 feet at a simulated flight Mach number of 0.40 to about 45,500 feet at a simulated flight Mach number of 1.00. Considerable difficulty was experienced in attempting to establish or maintain balanced-cycle engine operation at altitudes above 36,000 feet. The fuel-air ratio for balanced-cycle operation and lean blowout of the afterburner, the augmented-thrust ratio, the total specific fuel consumption, and the afterburner combustion efficiency for balanced-cycle operation are summarized in a table. Satisfactory afterburner ignition was obtained over a range of flight Mach Numbers from 0.32 to 0.60 at altitudes from 10,000 to 30,000 and engine speeds from 10,000 to 12,500 rpm.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9D19
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  • 2
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    In:  CASI
    Publication Date: 2019-08-13
    Description: A method for calculation of a counterrotating propeller which is similar to Walchner's method for calculation of the single propeller in the free air stream is developed and compared with measurements. Several dimensions which are important for the design are given end simple formulas for the gain in efficiency derived. Finally a survey of the behavior of the propeller for various operating conditions is presented.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TM-1208 , ZWB Forschungsbericht Nr. 1752
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  • 3
    Publication Date: 2019-08-13
    Description: Results of measurements on a shrouded propeller are given. The propeller is designed for the high ratio of advance and high thrust loading. The effect of the shape of propeller and shroud upon the aerodynamic coefficients of the propulsion unit can be seen from the results. The highest efficiency measured is 0.71. The measurements permit the conclusion that the maximum efficiency can be essentially improved by shroud profiles of small chord and thickness. The largest static thrust factor of merit measured reaches according to Bendemann, a value of about zeta = 1.1. By the use of a nose split flap the static thrust for thin shroud profiles with small nose radius can be about doubled. In a separate section numerical investigations of the behavior of shrouded propellers for the ideal case and for the case with energy losses are carried out. The calculations are based on the assumption that the slipstream cross section depends solely on the shape of the shroud and not on the propeller loading. The reliability of this hypothesis is confirmed experimentally and by flow photographs for a shroud with small circulation. Calculation and test are also in good agreement concerning efficiency and static thrust factor of merit. The prospects of applicability for shrouded propellers and their essential advantages are discussed.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TM-1202
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  • 4
    Publication Date: 2019-08-13
    Description: The requirements on gas turbines for aircraft power units, namely, adequate efficiency, operation at high gas temperatures, low weight, and small dimensions, must be taken into consideration during the design of the blading. To secure good efficiency, it is necessary that the gas flow past the blades as smoothly as possible without separation. This is relatively easily obtainable in the accelerated flow of turbine blading, if the blade spacing is chosen small enough. A small blade spacing, however, is detrimental to the other requirements outlined above. Operation at high gas temperatures usually calls for blade cooling. This cooling is associated with a power input that lowers the turbine efficiency. Since the amount of heat that must be carried off for coding a blade can be influenced rather little, the gross power input for a turbine stage can be reduced by keeping the number of blades to a minimum, that is, with blades of high spacing ratio. But here also a limit is imposed, the exceeding of which is followed by separation of flow. Hence the requirement of finding blade forms on which the flow separates at rather high spacing ratios .
    Keywords: Aircraft Propulsion and Power
    Type: NACA-TM-1209
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  • 5
    Publication Date: 2019-07-11
    Description: An investigation was conducted to determine the performance characteristics of the rotor and inlet guide vanes used in the axial-flow supersonic compressor of the XJ55-FF-1 turbojet engine. Outlet stators used in the engine were omitted to facilitate study of the supersonic rotor. The extent of the deviation from design performance indicates that the design-shock configuration was not obtained. A maximum pressure ratio of 2.26 was obtained at an equivalent tip speed of 1614 feet per second and an adiabatic efficiency of 0.61. The maximum efficiency obtained was 0.79 at an equivalent tip speed of 801 feet per second and a pressure ratio of 1.29. The performance obtained was considerably below design performance. The effective aerodynamic forces encountered appeared to be large enough to cause considerable damage to the thin aluminum leading edges of the rotor blades.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9G19
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  • 6
    Publication Date: 2019-07-11
    Description: As part of the performance investigation of compressors for the J33 turbojet engine, the A-21 model and the A-23 model with a 17- and a 34-blade impeller were operated with water injection at their respective design equivalent speeds of 11,500 and 11,750 rpm. Inlet conditions of pressure of 14 inches of mercury absolute and of ambient temperature correspond to those of the investigation of these models without water injection. The water-air ratio by weight ranged from 0.05 to 0.06. By the use of water injection, the peak pressure ratio of the A-21 compressor and the A-23 compressor with a 34-blade impeller increased approximately 0.38, whereas that of the A-23 compressor with a 17-blade impeller increased only 0.14. The decrease in maximum efficiency for the three compressors ranged from 0.12 to 0.14. The highest increase in maximum equivalent weight flow of air plus weight flow of water was 10.90 pounds per second obtained with the A-21 compressor. The increase in air weight flow alone was approximately 5.70 pounds per second for the A-21 compressor end the A-23, 17-blade compressor, which exceeded the increase of 3.15 pounds per second for the A-23; 34-blade compressor.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9G13
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  • 7
    Publication Date: 2019-07-11
    Description: A single-stage modification of the turbine from a Mark 25 torpedo power plant was investigated to determine the performance with two nozzle designs in combination with special rotor blades having a 20 inlet angle. The performance is presented in terms of blade, rotor, and brake efficiency as a function of blade-jet speed ratio for pressure ratios of 8, 15 (design), and 20. The blade efficiency with the nozzle having circular pas- sages (K) was equal to or higher than that with the nozzle having rectangular passages (J) for all pressure ratios and speeds investigated. The maximum blade efficiency of 0.571 was obtained with nozzle K at a pressure ratio of 8 and a blade-jet speed ratio of 0.296. The difference in blade efficiency was negligible at a pressure ratio of 8 at the low speeds; the maxim difference was 0.040 at a pressure ratio of 20 and a blade-jet speed ratio of 0.260.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9H09
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  • 8
    Publication Date: 2019-07-11
    Description: The J33-A-27 compressor was operated at an inlet pressure of 14 inches of mercury absolute and ambient inlet temperature over a range of equivalent impeller speeds from 6100 to 11,800 rpm. At the design equivalent speed of 11,800 rpm, the J33-A-27 compressor had a peak pressure ratio of 4.40 at an equivalent weight flow of 105.7 pounds per second and a peak adiabatic temperature-rise efficiency of 0.745. The maximum equivalent weight flow at design speed was 113.5 pounds per second.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9F30
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  • 9
    Publication Date: 2019-07-12
    Description: An investigation was conducted to determine the effect of turbine-disk cooling with air on the efficiency and the power output of the radial-flow turbine from the Turbo Engineering Corporation TT13-18 turbosupercharger. The turbine was operated at a constant range of ratios of turbine-inlet total pressure to turbine-outlet static pressure of 1,5 and 2.0, turbine-inlet total pressure of 30 inches mercury absolute, turbine-inlet total temperature of 12000 to 20000 R, and rotor speeds of 6000 to 22,000 rpm, Over the normal operating range of the turbine, varying the corrected cooling-air weight flow from approximately 0,30 to 0.75 pound per second produced no measurable effect on the corrected turbine shaft horsepower or the turbine shaft adiabatic efficiency. Varying the turbine-inlet total temperature from 12000 to 20000 R caused no measurable change in the corrected cooling-air weight flow. Calculations indicated that the cooling-air pumping power in the disk passages was small and was within the limits of the accuracy of the power measurements. For high turbine power output, the power loss to the compressor for compressing the cooling air was approximately 3 percent of the total turbine shaft horsepower.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9E20
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  • 10
    Publication Date: 2019-07-12
    Description: An investigation was conducted to determine the performance characteristics of the axial-flow supersonic compressor of the XJ-55-FF-1 turbo Jet engine. The test unit consisted of a row of inlet guide vanes and a supersonic rotor; the stator vanes after the rotor were omitted. The maximum pressure ratio produced in the single stage was 2.28 at an equivalent tip speed or 1814 feet per second with an adiabatic efficiency of approximately 0.61, equivalent weight flow of 13.4 pounds per second. The maximum efficiency of 0.79 was obtained at an equivalent tip speed of 801 feet per second.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9A31
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  • 11
    Publication Date: 2019-07-12
    Description: An investigation was conducted to determine the performance characteristics of the axial-flow supersonic compressor of the XJ55-FF-1 turbojet engine. An analysis of the performance of the rotor was made based on detailed flow measurements behind the rotor. The compressor apparently did not obtain the design normal-shock configuration in this investigation. A large redistribution of mass occurred toward the root of the rotor over the entire speed range; this condition was so acute at design speed that the tip sections were completely inoperative. The passage pressure recovery at maximum pressure ratio at 1614 feet per second varied from a maximum of 0.81 near the root to 0.53 near the tip, which indicated very poor efficiency of the flow process through the rotor. The results, however, indicated that the desired supersonic operation may be obtained by decreasing the effective contraction ratio of the rotor blade passage.
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-SE9J14
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  • 12
    Electronic Resource
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    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 21 (1949) 
    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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  • 13
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 6-8 
    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 Anordnung dient zur Messung von Dampfdruckerniedrigungen verdünnter Lösungen (10-3 Mol/l) insbesondere assoziierender Substanzen. Es wurde eine Meßanordnung entwickelt, in der die durch kleine Druckdifferenzen verursachte Ausbuchtung der Wölbung des Meniskus eines Hg-Manometers nach dem Prinzip eines Photometers lichtelektrisch mit einem Vakuumthermoelement gemessen wird. Die Anordnung gestattet unabhängig vom Gesamtdruck noch Druckschwankungen von 10-4 mm Hg zu messen.
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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: Es werden einige Regeleinrichtungen besprochen, die zum Aufbau von im wesentlichen automatisch arbeitenden Destillationskolonnen sowohl für diskontinuierlichen als auch für kontinuierlichen Betrieb führten.
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  • 15
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 1-6 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Unsere wichtigsten chemischen Großsynthesen gehen von Acetylen bzw. vom Kohlenoxyd-Wasserstoff-Gemisch aus. Die Arbeiten im letzten Jahrzehnt bezweckten, diese Rohstoffe unmittelbar aus dem Ferngas zu gewinnen. Von den entwickelten Verfahren verdient insbesondere das Sauerstoff-Verfahren Beachtung. Es liefert ein Synthesegas mit nur noch 0,2% Methan und ist unempfindlich gegen den im Ferngas vorhandenen organischen Schwefel. Eine etwa folgende Umsetzung des Kohlenoxydes mit Wasserdampf zu CO2 und Wasserstoff kann in unmittelbarem Ánschluß an der Kohlenwasserstoff-Spaltung vorgenommen werden, so daß kein neuer Dampfverbrauch auftritt. Während in der folgenden Arbeit über das Verfahren zur Verarbeitung des gesamten Ferngases auf Kohlenoxyd und Wasserstoff berichtet wird, wird in einer weiteren Arbeit die chemische Verwertung der einzelnen Bestandteile des Ferngases behandelt.
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  • 16
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 19-24 
    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 den verfügbaren amerikanischen Quellen wird zusammenfassend über die seit etwa 1940 in Amerika erreichten Fortschritte auf dem Gebiet der Sauerstoff-Erzeugung und -Anwendung berichtet, besonders über Versuche an Austauschböden und Trennkolonnen für kleinere, meist leichtbewegliche Anlagen, über die Mittel zur Kälteerzeugung, über die Herstellung und den Versand von flüssigem Sauerstoff sowie über die unmittelbare Erzeugung von hochkomprimiertem Sauerstoff für die Flaschenfüllung durch Verdampfung des flüssigen Sauerstoffs im Zerlegungsapparat. Weiter wird ein neuer Austauschertyp besprochen und auf neu erschlossene Anwendungsgebiete für billigen, mäßig reinen Sauerstoff hingewiesen.
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  • 17
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 15-18 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bei Kohlenoxyd-Hydrierungen unter Drucken zwischen 300 und 1000 at und Temperaturen über 400° erwiesen sich z. T. sog. „kohlenoxydfeste“ metallische Werkstoffe, insbesondere Stähle mit mehr als 13% Chrom, für den praktischen Betrieb als ungeeignet, obwohl sie anscheinend von Kohlenoxyd nicht abgebaut wurden. Es wurden daher 20 derartige Stähle und 6 eisenfreie Metallproben gegenüber Wassergas bei 1000 at und Temperaturen zwischen 300 und 450° untersucht und aus den Ergebnissen Folgerungen für die praktische Verwendungsmöglichkeit im Apparafebau gezogen.
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  • 18
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 24-30 
    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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  • 19
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 31-31 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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  • 20
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 31-32 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 21
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 33-37 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 22
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 37-38 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 23
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 38-38 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 24
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 32-32 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 25
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 39-39 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 26
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 40-40 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 27
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 39-40 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 28
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 40-40 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 29
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 47-47 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 30
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 41-41 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 31
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 41-42 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 32
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 42-46 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 33
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 48-48 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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  • 35
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 48-48 
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  • 36
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    Chemie Ingenieur Technik - CIT 21 (1949) 
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    Keywords: Chemistry ; Industrial Chemistry
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  • 37
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 48-48 
    ISSN: 0009-286X
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  • 38
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 48-48 
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  • 39
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 63-66 
    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 Angabe, daß sich die Ausscheidung von Härtebildern mit Orthophosphaten in wässeriger Lösung unter Bildung von Tricalciumphosphat vollziehe, ist unzutreffend. Der Niederschlag dürfte vielmehr die Formel des Hydroxylapatits haben.
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  • 40
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 49-57 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bis 1940 war die Anwendung hoher Vakua fast nur auf das Laboratorium beschränkt, in der Technik evakuierte nur die Röhrenindustrie bis auf Drucke von beinahe 10-7 mm Hg, aber es handelte sich auch hier meist nur um verhältnismäßig kleine Volumina. Die anschließende Entwicklung wurde durch mehrere Ereignisse besonders gefördert: durch die Konstruktion hervorragender Pumpen in Deutschland und Amerika, durch die Schaffung guter Gläser in Jena, durch die Erfolge der Vakuumdestillation von Fetten, Ölen und empfindlichen organischen Substanzen in England, Deutschland und später in USA, und schließlich durch das amerikanische Atombombenprojekt, wo bereits bei der Gasdiffusions- und elektromagnetischen Trennung der Uran-Isotope die ersten großen Vakuum-Probleme auftraten. Heute ist selbst die großtechnische Erzeugung von Hochvakuum zwischen -100° und + 1000° C ein untergeordnetes Problem der Verfahrenstechnik geworden.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 61-63 
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    Notes: Es wird über Versuche mit zwei Ausführungen von Pilzglocken aus Porzellan berichtet, die in Rektifizierböden eingebaut waren. Wirkung, Druckverlust und Flüssigkeitsinhalt der Sälen wurden ermittelt. Um eine gute Wirkung zu erreichen, müssen die Einzelabmessungen des Bodens entsprechend gewählt werden. Auch der Einbau einer Staurippe erhöht die Bodenwirkung.
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    Notes: Die hier beschriebenen Methoden sollen es dem Schichtarbeiter mit einfachen Mitteln ermöglichen, kurzfristig eine gefährliche Acetylen-Anreicherung zu erkennen. Die Ergebnisse werden mit denen quantitativer Methoden verglichen.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 68-70 
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    Notes: Der im folgenden beschriebene Kolbenverdichter arbeitet mit ungeschmierten Kolben und Stopfbüchsen. Die Abdichtung wird durch Labyrinthdichtungen erreicht. Dadurch behält das verdichtete Medium die ursprüngliche Reinheit, so daß der Verdichter in der chemischen Industrie und der Lebensmittelindustrie da verwendet werden kann, wo völlig reine Druckluft gebraucht wird.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 71-73 
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    Notes: In den letzten Jahren hat die Fluorchemie, insbesondere die verschiedener organischer fluorierter Verbindungen, erheblich an praktischer Bedeutung gewonnen. Da in einigen Veröffentlichungenz. B. DECHEMA-Werkstofftabellen 1948; ferner Ind. Engng. Chem. 39, 12a u. 91a [1947]. bereits auf die gute Eignung des Silbers als Apparatebauwerkstoff für technische Reaktionen mit Fluorverbindungen hingewiesen worden ist, seien nachstehend einige quantitative Angaben gemasht, die das Ergebnis einer 1944 laboratoriumsmäßig durchgeführten Korrosionsprüfung darsfellen.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 89-94 
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    Notes: Die technisch-wissenschaftliche Forschung der letzten Jahrzehnte brachte eine Erweiterung und Vertiefung unserer Erkenntnisse über die beim gekoppelten Wärme- und Stoffaustausch sich abspielenden Vorgänge. Trotzdem blieben noch Fragen ungeklärt, deren erschöpfende Behandlung für die rechnerische Erfassung baispielsweise der Trocknungsvorgänge unerläßlich ist. Zu diesen Fragen gehört der Zusammenhang zwischen Luftzustand und Gutstemperatur während des Trocknens bei bestimmten Arten der Gasströmung. Im folgenden werden diese Verhältnisse untersucht, wobei sich eine gute Übereinstimmung zwischen theoretischen und experimentellen Ergebnissen ergibt.
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    Notes: Die bisherigen Definitionen des Wirkungsgrades von Wärmeaustauschern konnten zwangsläufig nicht in jeder Hinsicht befriedigen. Es wird auch immer schwierig sein, einen Wirkungsgrabegriff auf energetischer Grundlage aufzustellen, solange der Wärmeaustauschapparat allein betrachtet wird, da sich Wärme- und Druckverluste jeweils verschieden auswirken. Daher sollte auch das Arbeitsverfahren, in das der Wärmeaustauscher eingeschaltet ist, mit in Betracht gezogen werden. Im folgenden wird gezeigt, daß sich dann ein auf energetischer Grundlage beruhender Gütegradbegriff schaffen läßt, der zwar von Fall zu Fall neu aufgestellt werden muß, dafür aber eine Reihe von Vorteilen für den Erzeuger und den Abnehmer von Wäreaustauschapparaten bietet.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 103-105 
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    Notes: Der Auslaufbecher DIN 53211 ist ein einfaches, praktisch leicht zu handhabendes Betriebs-Gerät zur Beurteilung der Konsistenz besonders von Farben und Lacken. Die vorliegende Untersuchung zeigt, innerhalb welcher Grenzen der Auslaufbecher tatsächlich geeignet ist, ein zuverlässiges Maß für die Konsistenz mit ihren Nebenerscheinungen, z. B. für die Viskosität usw., zu sein. Der experimentelle Zusammenhang zwischen Auslaufzeit und Viskosität wird durch Versuche mit 11 Normalflüssigkeiten ermittelt. Die genaue Analyse der Versuchsergebnisse gibt einen interessanten Einblick in die Strömungsvorgänge bei diesem Gerät.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 100-102 
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    Notes: Die Aufzeichnung polarographischer Kurven in Tintenschrift gestattet einfachstes Modellieren und Auswerten der Kurven. Für den Betrieb normaler Tintenschreiber unter Verstärkung der Elektrodenströme mittels Verstärker in Saugschaltung1 wurde während des Krieges ein vollelektrisch arbeitendes Zusatzgerät durchgebildet, in dem alle erforderlichen Schaltelemente und Verstellorgane zur Kurvenaufnahme untergebracht sind. Die einfach zu bedienende, robuste und universell verwendbare polarographische Meßeinrichtung läßt sich auch in technischen Betrieben zur Durchführung von Serienanalysen verwenden. Seine Wirkungsweise wird im folgenden unter Beifügung einiger charakteristischer Kurven erläutert.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 110-114 
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    Notes: Vielen Betrieben steht Kühlwasser zur Verfügung, das reich an Carbonathärte ist und daher leicht Versteinungen der Leitungen hervorruft. Um diese Steinbildung zu verhindern, hat sich der Zusatz geringer Mengen an Natriumhexametaphosphat bewährt. Während man zur Prüfung der Brauchbarkeit von Zusätzen bisher einfache Becherglasversuche angestellt hat, haben die Verfasser ein geeignetes, im Laboratorium durchführbares Prüfverfahren entwickelt, wobei die wesentlichen betrieblichen Faktoren berücksichtigt werden können. Im folgenden wird diese Apparatur beschrieben und dann werden damit erzielte Versuchsergebnisse mitgeteilt, die mit den in der Praxis gemachten Erfahrungen gut übereinstimmen. In einem Anhang wird schließlich über Becherglasversuche mit organischen Zusätzen berichtet.
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    Notes: In der vorhergehenden Arbeit1 war über ein Verfahren berichtet worden, nach dem aus Ferngas durch Totalspaltung mit Sauerstoff Synthesegas gewonnen werden kann. Das Ferngas enthält jedoch eine Reihe von wertvollen Bestandteilen, die für die Verarbeitung auf Synthesegas zu schade sind. Im folgenden wird beschrieben, wie diese Produkte zu isolieren sind und welche Möglichkeit für ihre Weiterverarbeitung gegeben ist. Dabei wird insbesondere das Sauerstoff-Verfahren besprochen, bei dem Methan und Sauerstoff erst nach vollendeter Mischung einer Flammenreaktion unterworfen werden, die durch Einspritzen von Wasser unterbrochen wird.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 136-136 
    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 indirekte Verfahren, nach dem Phosphat- bzw. Fluor-lonen durch die Extinktionsabnahme des Eisensalicylat-Komplexes bestimmt werden, kann auch für die Bestimmung der Schwefelsäure in Nitriersäure-Gemischen nutzbar gemacht werden.
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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: Als Beitrag zur Weiterentwicklung des Verfahrens wird die Struktur von Zerstäubernebeln und die Tropfenbewegung besprochen und ein Weg zur Berechnung des Trocknungsverlaufes gezeigt.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 139-142 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Fehler in der Bemessung von Vakuumleitungen führen im chemischen Betrieb nicht nur zu einer Erhöhung der laufenden Kosten, sondern können auch Anlaß zu Qualitäts minderungen geben, da dann bei höheren Drucken und damit bei unzulässig hohen Temperaturen gearbeitet werden muß. Es werden daher im folgenden Richtlinien für die Bemessung von Vakuumleitungen aufgestellt und an H and eines Nomogrammes erläutert.
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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 härtbaren und thermoplastischen Kunststoffe sowie die synthetischen Kautschuksorten werden wegen ihrer Korrosionsbeständigkeit an zahlreichen Stellen des chemischen Apparatebaues verwendet, darüber hinaus auch in der Textilchemie, Nahrungsmittelindustrie und Metallurgie als Baumaterial oder als Hilfsmittel für Geräte, Anlagen und Apparate.
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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 Bedeutung, die das Pektin für die Lebensmittelversorgung und für andere zahlreiche Industriezweige erlangt hat, gibt Veranlassung dazu die verschiedenen Methoden aufzuzeigen, die zu seiner Gewinnung führen, und kurz auf die Wege hinzuweisen die in der Weiterentwicklung des bisher Erreichten von der neueren Forschung beschritten werden.
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 153-153 
    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 21 (1949), S. 148-153 
    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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    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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    Keywords: Chemistry ; Industrial Chemistry
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    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 154-154 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
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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
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 155-156 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
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    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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    Chemie Ingenieur Technik - CIT 21 (1949), S. 156-157 
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    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
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