Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Journal of Enhanced Heat Transfer
Factor de Impacto: 1.406 Factor de Impacto de 5 años: 1.075 SJR: 0.287 SNIP: 0.653 CiteScore™: 1.2

ISSN Imprimir: 1065-5131
ISSN En Línea: 1563-5074

Volumes:
Volumen 27, 2020 Volumen 26, 2019 Volumen 25, 2018 Volumen 24, 2017 Volumen 23, 2016 Volumen 22, 2015 Volumen 21, 2014 Volumen 20, 2013 Volumen 19, 2012 Volumen 18, 2011 Volumen 17, 2010 Volumen 16, 2009 Volumen 15, 2008 Volumen 14, 2007 Volumen 13, 2006 Volumen 12, 2005 Volumen 11, 2004 Volumen 10, 2003 Volumen 9, 2002 Volumen 8, 2001 Volumen 7, 2000 Volumen 6, 1999 Volumen 5, 1998 Volumen 4, 1997 Volumen 3, 1996 Volumen 2, 1995 Volumen 1, 1994

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.2011003350
pages 13-24

HEAT TRANSFER ENHANCEMENT IN MINI CHANNELS WITH MICRO/NANO PARTICLES DEPOSITED ON A HEAT-LOADED WALL

Leonard L. Vasiliev
Porous Media Laboratory Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus 15, Str. P.Brovka, 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

SINOPSIS

As reported in the literature, many investigations have been performed to provide a better understanding of two-phase heat transfer at the microscale, which is very important in electronics and optoelectronic components cooling by micro heat exchangers. However, these studies have not yet led to a general conclusion. Recently in the Porous Media Laboratory (Minsk, Belarus) some experiments have been carried out in investigation of mini/microscale heat transfer of two-phase fluids (propane) at heat flux ranges 102−105 W/m2. Experimental investigation of pool boiling and evaporation heat transfer in mini channels on a single horizontal tube (smooth and with porous coating) has been performed for analysis of its cooling efficiency. The data obtained in the liquid pool and in confined space (from 0.1 to 2 mm) on a flooded and partially flooded horizontal tube with porous coating illustrate the phenomena of a micro heat pipe inside a porous structure. Propane, as the long-term alternative refrigerant, will be important in the future for compact heat exchangers, heat pipes, and heat pump applications due to its performance, its lack of impact on the environment (zero ODP and <3 GWP), and its physical properties, which are close to those of R-22. In the flat and annular mini channels with micro/nano coated walls investigated in this study, a microscale heat transfer effect took place inside the porous coating of the heat-loaded wall and a heat transfer miniscale effect occurred in the mini channel. The cylindrical heat-loaded tube with porous coating was disposed inside the transparent coaxial glass tube. Visual analysis and experimental data show that such a combination of plates or tubes provides evaporation and two-phase convection heat transfer enhancement. The availability of annular mini channels significantly promotes intense heat transfer (up to 2.5−3 times as high) at heat fluxes <50 kW/m2, as compared with processes in the 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
Two-Phase Heat Transfer in a Mini-Channel with Porous Heat-Loaded Wall
Heat Transfer Research, Vol.39, 2008, issue 5
Leonid L. Vasiliev, Jr., A. Konon, Alexander Shapovalov, Alexander S. Zhuravlyov
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
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
Experimental Investigation of the Hydrocarbons Pool Boiling on Porous Structures
International Heat Transfer Conference 12, Vol.40, 2002, issue
Leonid L. Vasiliev, Jr., A.V. Ovsianik, Leonard L. Vasiliev, Mikhail N. Novikov, Alexander S. Zhuravlyov