CAVITATION-BOILING COUPLING PHENOMENON EXPERIMENTAL INVESTIGATION OF R134A FLOW IN MICROCHANNEL

被引：0

作者：

Wang, Aiguo ^{[1
]}

Yuan, Junfei ^{[1
]}

Tang, Dawei ^{[1
]}

Cao, Hongzhang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Engn Thermophys, Beijing, Peoples R China

来源：

PROCEEDINGS IF THE ASME 9TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS AND MINICHANNELS 2011, VOL 1 | 2012年

关键词：

REFRIGERANT R-123; HEAT-TRANSFER;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Cavitation-boiling coupling phenomenon of R134a flow in micro-channel was experimentally investigated. The cavitation structure, a rectangular micro-orifice 0.2 mm wide and 4mm long, embedded in a micro-channel 0.8 mm wide and 1 mm deep which was engraved on an oxygen-free copper plate covered with quartz glass. Electric film heater was employed under the copper bottom corresponding cavitation structures. Flow patterns were observed by microscope. In the experiment, a phenomenon was observed that hydrodynamic cavitation occurred easier as the mass flow rate increasing. The microchannel wall temperature increased and then decreased along channel with heat power, and flow regimes were different when heat power changed. The cavitation initial position is the corner behind the cavitation structure but not the main flow region.

引用

页码：109 / 115

页数：7

共 50 条

[31] Experimental analysis of R134a flow boiling inside a 5 PPI copper foam
Diani, A.
Mancin, S.
Rossetto, L.
31ST UIT (ITALIAN UNION OF THERMO-FLUID-DYNAMICS) HEAT TRANSFER CONFERENCE 2013, 2014, 501
[32] Experimental study on vaporous cavitation of R134a in micron clearance
Lai, Tianwei
Yan, Shaohang
Wang, Yanwu
Liu, Xue
Yang, Shenyin
Ding, Pei
Hou, Yu
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2021, 129
[33] An experimental study of flow boiling heat transfer of R134a and evaluation of existing correlations
Xu, Yu
Fang, Xiande
Li, Guohua
Li, Dingkun
Yuan, Yuliang
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 92 : 1143 - 1157
[34] Flow boiling in a 1.1 mm tube with R134a: Experimental results and comparison with model
Shiferaw, D.
Karayiannis, T. G.
Kenning, D. B. R.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2009, 48 (02) : 331 - 341
[35] Flow boiling in a 1.1 mm tube with R134a - Experimental results and comparison with model
Shiferaw, D.
Karayiannis, T. G.
Kenning, D. B. R.
ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS, 2007, : 19 - 27
[36] Flow boiling of R134a and ammonia in a plate heat exchanger
Djordjevic, E.
Kabelac, S.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2008, 51 (25-26) : 6235 - 6242
[37] Vertical flow boiling of refrigerant R134a in small channels
Agostini, B
Bontemps, A
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2005, 26 (02) : 296 - 306
[38] Flow boiling heat transfer of R134a in multi microchannels
Fayyadh, E. M.
Mahmoud, M. M.
Sefiane, K.
Karayiannis, T. G.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2017, 110 : 422 - 436
[39] EXPERIMENTAL PERFORMANCE OF R134a AND R152a USING MICROCHANNEL CONDENSER
Bhatkar, V. W.
Kriplani, V. M.
Awari, G. K.
JOURNAL OF THERMAL ENGINEERING, 2015, 1 (07): : 575 - 582
[40] Periodic Reverse Flow and Boiling Fluctuations in a Microchannel Evaporator of an R134a Mobile Air-Conditioning System
Tuo, Hanfei
Hrnjak, Predrag
SAE INTERNATIONAL JOURNAL OF MATERIALS AND MANUFACTURING, 2013, 6 (03) : 540 - 548

← 1 2 3 4 5 →