Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
Heat Transfer Research
Impact-faktor: 0.404 5-jähriger Impact-Faktor: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Druckformat: 1064-2285
ISSN Online: 2162-6561

Volumes:
Volumen 50, 2019 Volumen 49, 2018 Volumen 48, 2017 Volumen 47, 2016 Volumen 46, 2015 Volumen 45, 2014 Volumen 44, 2013 Volumen 43, 2012 Volumen 42, 2011 Volumen 41, 2010 Volumen 40, 2009 Volumen 39, 2008 Volumen 38, 2007 Volumen 37, 2006 Volumen 36, 2005 Volumen 35, 2004 Volumen 34, 2003 Volumen 33, 2002 Volumen 32, 2001 Volumen 31, 2000 Volumen 30, 1999 Volumen 29, 1998 Volumen 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v38.i6.70
pages 553-563

Experimental Studies of Heat-Transfer Characteristics of Miniaturized Heat Pipes

V. Yu. Kravets
National Technical University of Ukraine, Igor Sikorsky Kyiv Polytechnic Institute, Ukraine
Yu. E. Nikolaenko
Ministry of Industrial Policy, Ukraine
Ya. V. Nekrashevich
National Technical University of Ukraine "Kiev Polytechnical Institute", Kiev, Ukraine

ABSTRAKT

Results of studies of heat-transfer characteristics of miniaturized heat pipes with the diameter 2.4 and 6 mm and length from 50 to 250 mm are presented. Pipe shell material is copper. It is shown that decrease of the vapor space dimensions in heat pipes leads to deterioration of their heat-transfer properties (increase of thermal resistance, reduction of transferred heat fluxes, and increase of the temperature difference between the evaporator and the condenser). The thermal resistance value depends on the diameter of miniaturized heat pipes. Physical processes occurring in miniaturized heat pipes are analyzed; heat-transfer coefficients in evaporation and condensation zones are obtained. Dependences of transferred heat loads on the diameter of the vapor space and the total length of miniaturized heat pipes are given. Dependences of the temperature drop between evaporation and condensation zones on the transferred heat flux are presented. Possibilities for increase of heat-transfer characteristics of such heat pipes by application of optimal-structure capillary structures, possessing a high capillary pressure and a high liquid permeability, are analyzed.


Articles with similar content:

Heat Exchange Intensification in the Case of Film Condensation on the Outer Surface of Horizontally Knurled Tubes
Heat Transfer Research, Vol.31, 2000, issue 1-2
K. F. Karimov, V. I. Tsoi, I. I. Zakirov, V. V. Galagan
NEW TYPE OF EVAPORATOR FOR LOOP HEAT PIPE
Second Thermal and Fluids Engineering Conference, Vol.20, 2017, issue
Alexander Yakomaskin
INVESTIGATION OF THE OPERATING CHARACTERISTICS OF A LOOP HEAT PIPE AT DIFFERENT CONDENSER COOLING TEMPERATURES
Heat Pipe Science and Technology, An International Journal, Vol.3, 2012, issue 1
S. Vershinin, Yury F. Maydanik, Svetlana I. Yushakova
EXPERIMENTAL STUDY OF EVAPORATION AT MICROGROOVE SURFACES
Heat Pipe Science and Technology, An International Journal, Vol.4, 2013, issue 1-2
Genrikh F. Smirnov, Boris V. Kosoy, O. G. Burdo, Maksym I. Slobodeniuk
Two-Channel Polarizing Device for a Radiating System
Telecommunications and Radio Engineering, Vol.54, 2000, issue 11&12
Alla Efimovna Tumanskaya, Yurii Petrovich Vinichenko