Heat Transfer Tests of a Steel Cylinder Barrel With Aluminum Fins of Optimum Proportions

Abstract

Barrel with fine spaced at 0.090 in. was tested to determine quality of thermal bonds between aluminum fins-aluminum base and aluminum base-steel and to compare its heat transfer coefficient with that of barrel with fin spacing of 0.052 in. Fin spacing of 0.090 in. provides 26% greater heat transfer coefficient. Thermal bonds of aluminum fins-aluminum base and aluminum-base-steel are good; however, mechanical bonds are poor. A 1/6 in. addition in fin width to 0.090 in. spaced fins would increase coefficient an additional 35%.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1940
Accession Number
ADA800569

Entities

People

  • Alvin H. Mann
  • Herman H. Ellerbrock Jr.

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aeronautics
  • Air Cooled
  • Air Flow
  • Aircraft Engines
  • Aluminum
  • Coefficients
  • Cooling
  • Energy Transfer
  • Equations
  • Heat Transfer
  • Heat Transfer Coefficients
  • Language
  • Navy
  • Thermal Conductivity
  • Thickness

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Powder metallurgy of Titanium alloys.
  • ballistics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster