The Designs of Fins Air-Cooled Cylinders

Abstract

An analysis was made to determine the proportions of fins made of aluminum, copper, magnesium, and steel necessary to dissipate maximum quantities of heat for different fin width, fin weights, and air-flow conditions. In the analysis, the calculation of the heat flow in the fins is based on an experimentally verified theoretical equation, while the surface heat-transfer coefficients were taken from previous experiments. In addition to fin-design information, the investigation shows that optimum fin dimensions are affected by the differences in air flow, and that highest heat transfer can be obtained with fins of a magnesium alloy.

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Document Details

Document Type
Technical Report
Publication Date
Jun 28, 1939
Accession Number
ADB806683

Entities

People

  • A. E. Biermann
  • H. Ellerbrock

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aeronautics
  • Air Cooled
  • Air Flow
  • Air Temperature
  • Aircrafts
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Coefficients
  • Cooling
  • Engines
  • Equations
  • Heat Transfer
  • Heat Transfer Coefficients
  • Heat Transmission
  • Magnesium Alloys
  • Thermal Conductivity

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Metallurgy