Enhancement of Boiling Heat Transfer in Di-Electric Fluids

Abstract

Direct application of two-phase heat transfer in the liquid cooling of electronic components in fluorinated hydrocarbons (FC-72), is severely inhibited by the excessive amount of superheat required to initiate nucleate boiling. To conduct an experimental study of nucleate pool boiling of FC-72, an experimental test chamber was constructed. This chamber utilized five horizontal platinum wires of 0.05 mm diameter spaced 2.0 cm vertically from each other. The lowest wire was progressively heated from the natural convection region through nucleate boiling, and a study was made on the effects of the boiling wake plume on the heat transfer rate of the upper wires.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1991
Accession Number
ADA245962

Entities

People

  • Robert A. Egger

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boiling
  • Computers
  • Cooling
  • Diameters
  • Electronic Components
  • Geometry
  • Heat Energy
  • Heat Transfer
  • Instrumentation
  • Liquid Cooling
  • Measurement
  • Mechanical Engineering
  • Nucleate Boiling
  • Physical Properties
  • Surface Temperature
  • Temperature Control
  • Thermal Conductivity

Fields of Study

  • Engineering

Readers

  • Combustion science or combustion engineering.
  • Powder metallurgy of Titanium alloys.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems
  • Space
  • Space - Hall-Effect Thruster