Simulation and Experimental Validation of Two-Phase Flow Distribution in Plate Heat Exchanger

Abstract

Abstract:

A mathematic model was developed in this paper to predict the two-phase flow distribution characteristics in a plate heat exchanger. The submodels of the pressure drops in both the channel and the distributor were established based on pressure balance equations. The submodels of both the phase split in distributor and the liquid film distribution in the inlet of distributor were established based on phase separation equations. The algorithm of the mathematical model was developed by interatively solving the pressure drop balance equations and the phase separation equations respectively. The predictions of the model were compared with the experimental data. The relative errors of pressure drop between mathematic model and experimental data are within ±20%. The relative errors of two-phase region height between mathematic model and experimental data are within ±13%.

Key words: plate heat exchanger, two-phase flow, gas-liquid distribution

CLC Number:

TB 657.5

ZHANG Ruxu1，HU Haitao2，ZHUANG Dawei2，DING Guoliang2，. Simulation and Experimental Validation of Two-Phase Flow Distribution in Plate Heat Exchanger[J]. Journal of Shanghai Jiaotong University, 2014, 48(06): 788-792.

References

［1］赵晓文, 苏俊林. 板式换热器的研究现状及进展［J］. 冶金能源, 2011, 30(1): 5255.

ZHAO Xiaowen, SU Junlin. Research status and development of the plate heat exchangers［J］. Energy for Metallurgical Industry, 2011, 30(1): 5255.

［2］Bobbili P R, Sunden B, Das S K. Thermal analysis of plate condensers in presence of flow maldistribution［J］. International Journal of Heat and Mass Transfer, 2006, 49(25): 49664977.

［3］Bobbili P R, Sunden B. Pressure drop in multiparallel channels of corrugated plate steam condensers［J］. Heat Transfer Engineering, 2009,30(13): 10241032.

［4］仇嘉, 魏文建, 张绍志, 等. 基于 CFD 数值模拟的板式换热器分配器性能研究［J］.

机械工程学报, 2010, 46(14): 130137.

QIU Jia, WEI Wenjian, ZHANG Shaozhi, et al. Research on performance of distributors used in Plate heat exchangers based on CFD numerical simulation［J］. Journal of Mechanical Engineering, 2010, 46(14): 130137.

［5］Bassiouny M K, Martin H. Flow distribution and pressure drop in plate heat exchangers—Ⅰ Utype arrangement［J］. Chemical Engineering Science, 1984, 39(4): 693700.

［6］Ablanque N, Oliet C, Rigola J, et al. Twophase flow distribution in multiple parallel tubes［J］. International Journal of Thermal Sciences, 2010, 49(6): 909921.

［7］Han D H, Lee K J, Kim Y H. Experiments on the characteristics of evaporation of R410A in brazed plate heat exchangers with different geometric configurations［J］. Applied Thermal Engineering, 2003, 23(10): 12091225.

［8］Hsieh Y Y, Lin T F. Saturated flow boiling heat transfer and pressure drop of refrigerant R410A in a vertical plate heat exchanger［J］. International Journal of Heat and Mass Transfer, 2002, 45(5): 10331044.

［9］Longo G A, Gasparella A. HFC410A vaporisation inside a commercial brazed plate heat exchanger［J］. Experimental Thermal and Fluid Science, 2007, 32(1): 107116.

［10］邱峰, 曾伟平, 谷波. R410A的板式蒸发器换热与压降分析［J］. 上海交通大学学报, 2009，43(10): 16121615.

QIU Feng, ZENG Weiping, GU Bo. Heat transfer and pressure drop analysis on evaporation of refrigerant R410A in plate heat exchanger［J］. Journal of Shanghai Jiaotong University, 2009，43(10): 16121615.

［11］Hwang S T, Soliman H M, Lahey Jr R T. Phase separation in dividing twophase flows［J］.

International Journal of Multiphase Flow, 1988, 14(4): 439458.

［12］Tae S J, Cho K. Twophase split of refrigerants at a Tjunction［J］. International Journal of Refrigeration, 2006, 29(7): 11281137.

［13］Azzopardi B J, Whalley P B. The effect of flow patterns on twophase flow in a T junction［J］. International Journal of Multiphase Flow, 1982, 8(5): 491507.

［14］Roberts P A, Azzopardi B J, Hibberd S. The split of horizontal annular flow at a Tjunction［J］.

Chemical Engineering Science, 1997, 52(20): 34413453.

［15］Azzopardi B J. The effect of the side arm diameter on the twophase flow split at a “T” junction［J］.

International Journal of Multiphase Flow, 1984, 10(4): 509512.

［16］魏文建, 李华. 点波板式换热器内流体流动换热及压降特性的实验研究［J］. 制冷技术, 2012, 32(4): 3641.

WEI Wenjian, LI Hua. Experimental investigation of heat transfer and pressure drop characteristics of fluid flow in dimple plate heat exchanger［J］. Chinese Jounal of Refrigeration Technology, 2012, 32(4): 3641.

[1]	WANG Zhiwei, HE Yanping, LI Mingzhi, QIU Ming, HUANG Chao, LIU Yadong. Numerical Simulation and Flow Pattern Evolution of Gas-Liquid Two-Phase Flow Passing Through a 90° Pipe Bend Based on CFD [J]. Journal of Shanghai Jiao Tong University, 2022, 56(9): 1159-1167.
[2]	LIU Xucheng, GU Bo, ZENG Weijie, DU Zhongxing, TIAN Zhen. Analysis of Frictional Pressure Drop Correlations of Refrigerant Two-Phase Flow in Mini-Channel [J]. Journal of Shanghai Jiao Tong University, 2021, 55(9): 1095-1107.
[3]	LI Yansong, DING Dingqian, HAN Dong, LIU Jing, LIANG Yongtu. Numerical Simulation of Critical Oil Velocity Required to Completely Remove Water Lump Deposited in Hilly Oil Pipelines [J]. Journal of Shanghai Jiao Tong University, 2021, 55(7): 878-890.
[4]	XIE Hang,REN Huilong,TAO Kaidong,FENG Yikun. Study on Oblique Water Entry of Wedge Applying Improved Volume of Fluid Method [J]. Journal of Shanghai Jiaotong University, 2020, 54(1): 20-27.
[5]	LI Yu, CHENG Guangyi, LI Zongyang, DOU Yibin, JIANG Junting. Thermo-solid Coupling Study of Solid Rocket Motor Nozzle Under Two-phase Flow [J]. Air & Space Defense, 2020, 3(1): 1-9.
[6]	WANG Yufeng,WANG Dandong,HU Jichao,CHEN Liang,CHEN Jiangping. A Numerical Model of the Two-Phase CO2 Ejectors [J]. Journal of Shanghai Jiaotong University, 2019, 53(7): 860-865.
[7]	YU Dengjia (俞登佳), LIU Jinwei (刘金伟), Lü Hongbin (吕鸿斌), SHI Junye (施骏业), YOU Dian (游典), CHEN Jiangping* (陈江平). Effect of Header Configuration on Refrigerant Distribution in Parallel Flow Microchannel Evaporators [J]. Journal of Shanghai Jiao Tong University (Science), 2019, 24(3): 273-280.
[8]	ZOU Liangxu，MA Fei，MENG Zhaonan，ZHANG Peng. Numerical Investigation of Flow and Heat Transfer of Ice Slurry Based on Population Balance Model [J]. Journal of Shanghai Jiaotong University, 2019, 53(12): 1459-1465.
[9]	TANG Yi-jia, MA Tian-shou, HE Yu-fa, CHEN Ping. Research on Temperature Distribution Calculation Model for Two-Phase Flow in Deepwater Wellbore [J]. Ocean Engineering Equipment and Technology, 2018, 5(增刊): 204-208.
[10]	QIAN Peng* (钱鹏), YI Hong (易宏), LI Yinghui (李英辉). The Numerical Simulation of a Towing Cylinder Based on Immersed Body Boundary Method [J]. Journal of shanghai Jiaotong University (Science), 2016, 21(2): 136-142.
[11]	Wen-sheng LI, Lie-jin GUO, Nai-liang LI, Bing CHENG, Hai-yuan YAO. Experimental Study on Air-Oil Two-Phase Flow Patterns in a Pipeline-Riser System with an S-Shaped Riser [J]. Ocean Engineering Equipment and Technology, 2014, 1(1): 30-34.
[12]	WANG Xiaochuana,b，HE Guoa,c，GUO Chaoyoub，LI Yanfeib. Effect of Swirl Intensity on Heat and Mass Transfer in Gas-Droplets Two-Phase Flow [J]. Journal of Shanghai Jiaotong University, 2013, 47(11): 1767-1772.