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Heat Transfer Research
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ISSN Druckformat: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v39.i5.30
pages 391-401

Two-Phase Heat Transfer in a Mini-Channel with Porous Heat-Loaded Wall

Leonid L. Vasiliev, Jr.
Byelorussian Academy of Sciences; and Luikov Heat & Mass Transfer Institute, Porous Media Laboratory, P. Brovka Str. 15, 220072 Minsk, Belarus
Alexander S. Zhuravlyov
Luikov Heat & Mass Transfer Institute, National Academy of Sciences of Belarus, Porous Media Laboratory, P. Brovka Str. 15, 220072 Minsk, Belarus
Alexander Shapovalov
Porous Media Laboratory, A. V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus
A. Konon
A.V. Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus

ABSTRAKT

The results of experimental investigation of mini/micro-scale heat transfer of two-phase flow (propane) conducted at the heat flux range 102-105 W/m2 are presented. Investigation of pool boiling and evaporation heat transfer in mini-channels on a single horizontal tube (smooth and with porous coating) was performed for the reasons of analysis of its cooling efficiency. The data obtained on a flooded and partially flooded horizontal tube with porous coating in liquid pool or in confined space (from 0.1 to 2 mm) testify the phenomena of micro-heat pipe inside a porous structure. A micro-scale effect took place inside the porous body and a mini-scale effect was ensured due to a flank or annular mini-channel. Visual analysis and experimental results show that such combination is favorable for enhancement of evaporation and two-phase convection heat transfer. The availability of annular mini-channel significantly promotes to intense heat transfer (up to 2.5−3 times as high) at heat fluxes up to 50 kW/m2 , as compared with the process in liquid pool.


Articles with similar content:

MICROSCALE TWO PHASE HEAT TRANSFER ENHANCEMENT IN POROUS STRUCTURES
International Heat Transfer Conference 13, Vol.0, 2006, issue
Leonid L. Vasiliev, Jr., A. Zhuravlyov, L. L. Vasiliev, Jr, Alexander Shapovalov
HEAT TRANSFER ENHANCEMENT IN MINI CHANNELS WITH NANO PARTICLES DEPOSIT ON THE HEAT LOADED WALL
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2009, issue
Alexander Shapovalov, Leonard L. Vasiliev, Alexander S. Zhuravlyov
HEAT TRANSFER ENHANCEMENT IN MINI CHANNELS WITH MICRO/NANO PARTICLES DEPOSITED ON A HEAT-LOADED WALL
Journal of Enhanced Heat Transfer, Vol.19, 2012, issue 1
Alexander Shapovalov, Leonard L. Vasiliev, Alexander S. Zhuravlyov
HORIZONTAL VAPORDYNAMIC THERMOSYPHONS, FUNDAMENTALS, AND PRACTICAL APPLICATIONS
Heat Pipe Science and Technology, An International Journal, Vol.4, 2013, issue 1-2
Leonid L. Vasiliev, Jr., Alexander S. Zhuravlyov, Leonard L. Vasiliev
Heat Transfer in Boiling of a Moving Liquid in a Microchannel
Heat Transfer Research, Vol.41, 2010, issue 4
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