Two-phase operational maps, pressure drop, and heat transfer for flow boiling of R236fa in a micro-pin fin evaporator
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- 作者：C. Falsetti ; chiara.falsetti@epfl.ch ; H. Jafarpoorchekab hamide.jafarpoor@gmail.com ; M. Magnini mirco.magnini@epfl.ch ; N. Borhani navid.borhani@epfl.ch ; J.R. Thome john.thome@epfl.ch
- 关键词：Two-phase flow ; Flow boiling ; Micro-pin fins ; High speed visualization ; Infrared camera measurements
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2017
- 出版时间：April 2017
- 年：2017
- 卷：107
- 期：Complete
- 页码：805-819
- 全文大小：2989 K
- 卷排序：107
文摘
Two-phase flow boiling in a micro-pin fins evaporator is experimentally investigated. Local fluid temperature and 3D heat conduction are implemented in the data reduction. Inlet restrictions improve flow stability at low mass flux values. Heat transfer performance is strongly dependent on vapor quality, mass flux and heat flux. Flow patterns have an essential impact on heat transfer coefficient trends and magnitudes.