图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
传热学
影响因子: 0.404 5年影响因子: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

传热学

DOI: 10.1615/HeatTransRes.v41.i4.90
pages 479-491

Investigation of Nonstationary Heat Transfer in Boiling of Freon 113 on Dimpled Spherical and Cylindrical Surfaces under the Conditions of Free Convection

Vladimir M. Zhukov
Joint Institute for High Temperatures of the Russian Academy of Sciences, Moscow, Russia
Yury A. Kuzma-Kichta
Moscow Power Engineering Institute Moscow, Russia
A. M. Agal'tsov
Moscow Power Engineering Institute (Technical University), 14 Krasnokazarmennaya Str., Moscow, 111250, Russia

ABSTRACT

An experimental investigation of nonstationary heat transfer in boiling of Freon 113 on dimpled spherical and vertical cylindrical surfaces with free convection in a wide range of temperature differences is carried out. The influence of dimples on an increase in the heat transfer rate in the film and transient regimes of the boiling of liquids, as well as film boiling crisis have been revealed. With the aid of a high-speed video-filming the existence of the phases of nonlinear waves with time-varying amplitudes whose values are commensurable with the average thickness of the vapor film or exceed it has been revealed. The amplitude of these waves increased in motion of the vapor film to the sphere vertex and attained an order of 0.7 mm. In experiments with subcooling, secondary flows were observed near the interface due to the transfer of heat from the vapor-liquid interface.


Articles with similar content:

Liquid Decay and Metastable Regular Structures in the Falling Films at Nonstationary Heat Release
Heat Transfer Research, Vol.40, 2009, issue 1
Aleksandr N. Pavlenko, Anton S. Surtaev, A. N. Chernyavskii, Oleg A. Volodin
EXPERIMENTAL OBSERVATION OF THREE-DIMENSIONAL WAVE EVOLUTION ON A FALLING LIQUID FILM
International Heat Transfer Conference 11, Vol.6, 1998, issue
Takehiro Nosoko , Takashi Nagata, S. Gima
Heat Transfer and Crisis Phenomena Development at Boiling and Evaporation in Falling Liquid Film at Stepwise Heat Generation
International Heat Transfer Conference 15, Vol.15, 2014, issue
Aleksandr N. Pavlenko, Anton S. Surtaev, Irina P. Starodubtseva
Breakdown of a Falling Wave Liquid Film during Nonstationary Heat Release
Heat Transfer Research, Vol.39, 2008, issue 6
Aleksandr N. Pavlenko, Anton S. Surtaev, A. N. Chernyavskii
LDV MEASUREMENTS IN A RECTANGULAR SURFACE JET
TSFP DIGITAL LIBRARY ONLINE, Vol.4, 2005, issue
Robert J. Martinuzzi, Soheil Gholamreza-Kashi, Raouf E. Baddour