Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Journal of Enhanced Heat Transfer
Facteur d'impact: 0.562 Facteur d'impact sur 5 ans: 0.605 SJR: 0.211 SNIP: 0.361 CiteScore™: 0.33

ISSN Imprimer: 1065-5131
ISSN En ligne: 1026-5511

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

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v14.i1.30
pages 53-64

Study on the Heat Transfer Enhancement of Oscillating-Flow Heat Pipe by Pulse Heating

Haizhen Xian
Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing 102206, China
Deng-Ying Liu
Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing 102206; and Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China
Yongping Yang
MOE Key Laboratory of Condition Monitoring and Control for Power Plant Equipment, North China Electric Power University, Beijing 102206, China
Fumin Shang
Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing 102206, China
Xiaoze Du
Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University), Ministry of Education, Beijing 102206, China; School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, China

RÉSUMÉ

Oscillating-Flow Heat Pipe (OFHP) is a new type of heat transfer devices, which has an excellent heat transfer performance. In this paper, pulse heating is adopted instead of conventional continuous heating to enhance the heat transfer of this device. Experimental results indicate that the heat transfer rate of pulse heating of OFHP is higher than that of the continuous by 15−38%, and the effective thermal conductivity is higher by 12−63% at the same heating power. There exists an optimal region of heating power for OFHP. To a certain extent, the heat transfer performance of OFHP is reflected by the value of frequency and amplitude of temperature oscillation. In addition, when the heating power was maintained at a constant value, the heat transfer characteristics of OFHP are variable with change of pulse duration and time interval, and both heat transfer rate and effective conductivity have a maximum value. Due to the combined action of internal and external thermal fields, an optimal operating range of pulse duration and time interval may exist.


Articles with similar content:

ANALYTICAL STUDY OF THE THREE-DIMENSIONAL TEMPERATURE FIELD OF A KDP CRYSTAL IRRADIATED BY A SQUARE WAVE MODULATED LASER
Heat Transfer Research, Vol.47, 2016, issue 5
Rihong Zhu, Hua Shen, Yingcong Zhang
TRANSIENT HEAT TRANSFER CHARACTERISTICS OF INCLINED LOOP-THERMOSYPHON-TYPE HEAT PIPE FOR SOLAR COLLECTOR WITH CHANGING INPUT SOLAR HEAT FLUX
Heat Pipe Science and Technology, An International Journal, Vol.5, 2014, issue 1-4
Katsuaki Shirai, Shota Sato, Tsuyoshi Kawanami, Shigeki Hirasawa
Flow Through a High Porosity Medium in the Presence of Radiation
Journal of Porous Media, Vol.9, 2006, issue 2
A. Raptis, C. Perdikis
MODERN CONTROL OF ELECTRO-STATIC PRECIPITATOR
Energy and Environment, 1995, Vol.0, 1995, issue
Qiang Zhang, JiuBin Liu
M-Type Microwave Oscillator in a Mode of Orbital Resonances
Telecommunications and Radio Engineering, Vol.55, 2001, issue 1
O.P. Kulagin, V. D. Yeryomka