Heat-Transfer Processes in Air-Cooled Engine Cylinders

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Description

"From a consideration of heat-transfer theory, semi-empirical expressions are set up for the transfer of heat from the combustion gases to the cylinder of an air-cooled engine and from the cylinder to the cooling air. Simple equations for the average head and barrel temperatures as functions of the important engine and cooling variables are obtained from these expressions. The expressions involve a few empirical constants, which may be readily determined from engine tests. Numerical values for these constants were obtained from single-cylinder engine tests for cylinders of the Pratt & Whitney 1535 and 1340-H engines" (p. 1).

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16 p. : ill.

Creation Information

Pinkel, Benjamin 1938.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 170 times . More information about this report can be viewed below.

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Description

"From a consideration of heat-transfer theory, semi-empirical expressions are set up for the transfer of heat from the combustion gases to the cylinder of an air-cooled engine and from the cylinder to the cooling air. Simple equations for the average head and barrel temperatures as functions of the important engine and cooling variables are obtained from these expressions. The expressions involve a few empirical constants, which may be readily determined from engine tests. Numerical values for these constants were obtained from single-cylinder engine tests for cylinders of the Pratt & Whitney 1535 and 1340-H engines" (p. 1).

Physical Description

16 p. : ill.

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  • Accession or Local Control No: 93R20978
  • URL: http://hdl.handle.net/2060/19930091688 External Link
  • Report No.: NACA-TR-612
  • Center for AeroSpace Information Number: 19930091688
  • Archival Resource Key: ark:/67531/metadc66271

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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Creation Date

  • 1938

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

Description Last Updated

  • Sept. 10, 2018, 3:43 p.m.

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Pinkel, Benjamin. Heat-Transfer Processes in Air-Cooled Engine Cylinders, report, 1938; (digital.library.unt.edu/ark:/67531/metadc66271/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.