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Experimentation and Analysis about Critical Boiling Heat Transfer on Micro Porous Surface(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2002年02期
Page:
21-25
Research Field:
Publishing date:

Info

Title:
Experimentation and Analysis about Critical Boiling Heat Transfer on Micro Porous Surface
Author(s):
Zhao Xiaobao
College of Power Engineering,Nanjing Normal University,210042,Nanjing,PRC
Keywords:
micro space;  porous surface;  critical boiling;  boiling stage
PACS:
TK124
DOI:
-
Abstract:
The t heories about different boiling stag es on micro por ous sur face are put forward first time and tested by ex periment ( by using video) in this paper. Being qualitatively different from boiling on smooth surface, the temperature of critical boiling on micro porous surface only takes place w hen a pure vapor film forms abov e the porous surface, critical heat flux on micr o porous surface is 1~ 2 times hig her than that on plain sur face. A calculating equation o f cr itical heat flux on t he porous surface is gotten on the basis of the ex periment.

References:

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[ 2] R L Webb. Nucleate Boiling on Porous Coated Surface[ J] . Heat Transfer Eng ineering, 1983: 71~ 82.
[ 3] K Nishikawa, Ito T . Augmentation of Nucleate Boiling Heat Transfer by Pr epared Sur faces[ C] . in Heat Tr ansfer in Energy Problem, Mizushina, T. and Yang, W J eds. Hemisphere Publishing Corporation, D. C, Washing ton, 1983: 119~ 126.
[ 4] N H Afgan, L A Jovic, S A Kovalec. Boiling Heat Transfer from Surfaces with Porous Layers[ C] . Int J of Heat and Mass Transfer , 1985: 415~ 422.
[ 5] X B Zhao, H J Zhang. Analysis and Ex perimentation on Boiling Heat Tr ansfer in Thin Powder Por ous Layers at High Heat Flux[ J] . Chinese Journal o f Engineering Thermophysics, 1990: 323~ 333.

Memo

Memo:
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Last Update: 2013-04-29