Fang Xiande
Professor Supervisor of Doctorate Candidates
Main positions:国际期刊《Aerospace Science and Technology》副主编
Other Post:国际期刊《International Journal of Thermofluid Science and Technology》主编
Gender:Male
Alma Mater:中国科学技术大学
Education Level:With Certificate of Graduation for Doctorate Study
Degree:Doctoral Degree in Engineering
School/Department:College of Aerospace Engineering
Discipline:Engineering Thermophysics. Man-machine-environment system engineering. Refrigeration and Cryogenic Engineering
Business Address:明故宫流体楼
Contact Information:Email: xd_fang@nuaa.edu.cn Cell: 13675121205
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Affiliation of Author(s):航空学院
Journal:Int. J. Heat Mass Transf.
Abstract:An experimental study with a horizontal 1.002 mm inner diameter mini-tube is conducted to investigate the two-phase frictional pressure drop of R134a flow boiling under hypergravity. Totally 1718 data points under the gravity from 1 to 3.16g were obtained, with mass fluxes of 400–1075 kg/m2s, vapor qualities of 0.05–0.85, heat fluxes of 24.0 and 31.5 kW/m2, and saturation pressures of 0.6 and 0.7 MPa. The hypergravity conditions were achieved using a centrifugal acceleration machine. The results show that with increasing gravity the flow boiling frictional pressure drop increases at high vapor quality but decreases at low vapor quality, and the trend reversals take place roughly in the range of 0.07 < x < 0.45, depending on saturation pressure and mass flux. The comparison between the experimental data and the predictions of 28 correlations of two-phase frictional pressure drop is made, and the results show that the best correlation has a mean absolute deviation of 12.8% for the entire data, 10.6% for normal gravity, and 13.7% for hypergravity. © 2017 Elsevier Ltd
ISSN No.:0017-9310
Translation or Not:no
Date of Publication:2018-03-01
Co-author:Li, Guohua,Yuan, Yuliang,Chen, Yanyu,Wang, Li,Xu, Yu
Correspondence Author:Li, Guohua,Fang Xiande
