The Influence of Drilled Cavities on Natural Convection and Saturated Pool Boiling Heat Transfer from a Horizontal Surface.

Abstract

The objective of this research project was to study the effect of small artificial cavities on both natural convection and the incipience of saturated pool boiling from a horizontal test surface. All tests were run with distilled Freon 113. Data for the heat flux as a function of the superheat and the convection heat transfer coefficient as a function of the heat flux were carefully obtained and plotted. Experimental results are presented for the heat transfer from horizontal circular disks, with and without artificial cavities. Increases in both natural convection and boiling heat transfer were observed with the addition of artificial cavities. The magnitude of heat transfer augmentation was found to be strongly dependent upon the artificial cavity density. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA038618

Entities

People

  • George Richard Yount

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Bessel Functions
  • Coefficients
  • Convection
  • Energy
  • Equations
  • Fabrication
  • Films
  • Heat Flux
  • Heat Transfer
  • Heat Transfer Coefficients
  • Measurement
  • Nucleate Boiling
  • Surface Properties
  • Surface Temperature
  • Temperature Gradients
  • Thermal Conductivity

Readers

  • Combustion and Flow Dynamics.