Heat Transfer Measurements of Internally Finned Rotating Heat Pipes.

Abstract

A rotating cylindrical heat pipe was tested using various internally finned condensers and was compared with a smooth-wall cylinder. Each condenser was tested at rotational speeds of 700, 1400 and 2800 rpm with film condensation. Distilled water was used as the working fluid. The heat transfer rate of each condenser was plotted versus the driving temperature difference between the vapor saturation temperature and the cooling water inlet temperature. The objective of this investigation was to study the performance with various fin configurations and to find an optimum fin geometry. As expected, in all cases, performance was improved with increasing rpm. The performance of internally finned condensers was found to be as much as 230 percent greater than that of the smooth condenser. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1983
Accession Number
ADA140847

Entities

People

  • A. Nefesoglu

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Condensation
  • Data Acquisition
  • Engineering
  • Equations
  • Flow Rate
  • Geometry
  • Heat Energy
  • Heat Flux
  • Heat Pipes
  • Heat Transfer
  • Heat Transfer Coefficients
  • Mass Flow
  • Measurement
  • Mechanical Engineering
  • O Rings
  • Pipes

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.