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  • 1
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    Unknown
    Intercooler cooling-air weight flow and pressure drop for minimum drag loss (1944)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An analysis has been made of the drag losses in airplane flight of cross-flow plate and tubular intercoolers to determine the cooling-air weight flow and pressure drop that give a minimum drag loss for any given cooling effectiveness and, thus, a maximum power-plant net gain due to charge-air cooling. The drag losses considered in this analysis are those due to (1) the extra drag imposed on the airplane by the weight of the intercooler, its duct, and its supports and (2) the drag sustained by the cooling air in flowing through the intercooler and its duct. The investigation covers a range of conditions of altitude, airspeed, lift-drag ratio, supercharger-pressure ratio, and supercharger adiabatic efficiency. The optimum values of cooling air pressure drop and weight flow ratio are tabulated. Curves are presented to illustrate the results of the analysis.
    Type: NACA-TR-784
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Performance Tests of NACA Type a Finned-tube Exhaust Heat Exchanger (1944)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Type: NACA-WR-E-97 , NACA-ARR-E4H22
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Computed temperature distribution and cooling of solid gas-turbine blades (1947)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Type: NACA-RM-E7B11h
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Computed Temperature Distribution and Cooling of Solid Gas-Turbine Blades (1947)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: Computations were made to determine the temperature distribution and cooling of solid gas-turbine blades.A range of temperatures was used from 1500 degrees to 2500 degrees F, blade-root temperatures from 100 degrees to 1000 degrees F, blade thermal conductivity from 8 to 220 BTU/(hr)(sq ft)(degrees F/ft), and net gas to metal heat transfer coefficients from 75 to 250 BTU/(hr)(sq ft)(degrees F).
    Keywords: Aircraft Propulsion and Power
    Type: NACA-RM-E7B11h
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Comparison of Intercooler Characteristics (1941)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: A method is presented of comparing the performance, weight, and general dimensional characteristics of inter-coolers. The performance and dimensional characteristics covered in the comparisons are cooling effectiveness, pressure drops and weight flows of the charge and cooling air, power losses, volume, frontal area, and width. A method of presenting intercooler data is described in which two types of charts are plotted; (1) A performance chart setting forth all the important characteristics of a given intercooler and (2) a replot of these characteristics for a number of intercoolers intended to assist in making a selection to satisfy a given set of installation conditions. The characteristics of commercial intercoolers obtained from manufacturers' data and of some computed designs are presented on this basis. A standard test procedure and instrumentation are suggested whereby comparable data may be obtained by different testing organizations.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NACA-SR-192
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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