XU Xiangguo1， 2 ZHAN Sicheng1， 2 LIANG Haobin1， 2 WANG Xiaofei1， 2 ZHONG Ziwen1， 2

doi:10.3901/JME.2017.04.122

Abstract

Abstract:

During the operation of air conditioning system, once the surface temperature of heat exchanger is below the dew point of conditioned air, condensate will form on the surface of heat exchanger. The condensate may deteriorate the performance of air conditioner by affecting the heat transfer coefficient and flow resistance of an evaporator, enlarging the energy consumption and reducing the user comfort level. Related literatures are summarized from three aspects: Parameters used to describe the wettability of the surface and the condensate characteristics are introduced, with a prime model to calculate the mass of condensate retention; The influence of the retained condensate on the performance of heat exchanger and the whole air condition system is analyzed; Major methods to improve the drainage ability of the heat exchanger are listed. Inadequacy of current studies is discussed and future prospects of research on this topic are proposed.

Key words: condensate retention, flow resistance, sensible heat transfer coefficient, surface wettability, heat exchanger

XU Xiangguo, ZHAN Sicheng, LIANG Haobin, WANG Xiaofei, ZHONG Ziwen. XU Xiangguo^{1， 2} ZHAN Sicheng^{1， 2} LIANG Haobin^{1， 2} WANG Xiaofei^{1， 2} ZHONG Ziwen^{1， 2}[J]. Journal of Mechanical Engineering, 2017, 53(4): 122-133.

[1]	SHI Yan, LIU Jia. Key Technology Research on the Heat Exchange Plate Sealing Welded by Laser [J]. Journal of Mechanical Engineering, 2022, 58(6): 101-109.
[2]	PENG Jinghui, ZHANG Yayun, XU Yang, YANG Rui, YUAN Lipeng, LI Songjing. Optimization of Staggered Fins Heat Exchangers for Miniaturized Hydraulic Power Units Using Genetic Algorithm [J]. Journal of Mechanical Engineering, 2021, 57(24): 49-57.
[3]	ZHANG Yucai, TU Shantung, LUO Yun, JIANG Wenchun, ZHANG Xiancheng. Investigation the Creep Damage and Life Prediction of the Brazed Joint [J]. Journal of Mechanical Engineering, 2021, 57(16): 218-234,247.
[4]	ZHANG Zhongbin, ZHANG Hao, LIU Yang, ZHENG Kongqiao, XU Zhiming. Numerical Simulation and Field Synergy Principle Analysis on the Characteristic for New Distribution Region of Plate Heat Exchanger [J]. Journal of Mechanical Engineering, 2017, 53(6): 145-151.
[5]	NI Jiaxin, ZHANG Ying, DENG Shuai, ZHAO Li. Dynamic Simulation of an Organic Rankine Cycle System [J]. Journal of Mechanical Engineering, 2017, 53(22): 190-197.
[6]	WANG Ting, GU Bo, QIAN Cheng, MA Hongtao. Experimental and Theoretical Analysis for Heat Transfer and Flow Performance of Mini-channel Parallel Flow Heat Exchanger in Vehicle [J]. Journal of Mechanical Engineering, 2016, 52(4): 141-147.
[7]	XU Zhiming, HAN Zhimin, WANG Jingtao, BAI Wenyu, ZHANG Yilong. Heat Transfer and Flow Resistance Characteristics of the Horizontal Semi-cylindrical Vortex Generators and Analysis with Field Synergy Theory [J]. Journal of Mechanical Engineering, 2016, 52(2): 166-172.
[8]	WEN Jue, ZHANG Jing, ZHAO Li, LI Deyu. Numerical Simulation of New Combined Plate Heat Exchangers and Distribution Region [J]. Journal of Mechanical Engineering, 2016, 52(2): 150-156.
[9]	XU Jinghua, ZHANG Shuyou, TAN Jianrong. Segmented Design of Performance Enhancement for Large Plate Fin Heat Exchanger of Cryogenic Air Separation Unit [J]. Journal of Mechanical Engineering, 2015, 51(9): 129-136.
[10]	WANG Weihan, CHENG Daolai, CHEN Yaping, DONG Cong. Experimental Study on Oil to Water Heat Transfer Performance of Circumferential Overlap Trisection Helical Baffle Heat Exchangers [J]. Journal of Mechanical Engineering, 2015, 51(4): 161-166.
[11]	LIU Jingcheng, ZHANG Shuyou, ZHOU Zhiyong. Influence on Fluid Flow and Heat Transfer of a Bionic Fin in Plate-fin Heat Exchanger [J]. Journal of Mechanical Engineering, 2015, 51(12): 161-169.
[12]	CUI Baoling, MA Guangfei, WANG Huijie, LIN Zhe, SHANG Zhaohui. Influence of Valve Core Structure on Flow Resistance Characteristics and Internal Flow Field of Throttling Stop Valve [J]. Journal of Mechanical Engineering, 2015, 51(12): 178-184.
[13]	ZHANG Jing, WEN Jue, ZHAO Li, LI Deyu, WANG Yi. Heat Transfer and Flow Analysis and Corrugation Parameters Optimization of the Plate Heat Exchanger Based on Computational Fluid Dynamics Numerical Simulation [J]. Journal of Mechanical Engineering, 2015, 51(12): 137-145.
[14]	XU Weifeng, WANG Ke, JIN Zunlong, LIU Minshan. From Field Synergy to Thermodynamics Coupling：Thermodynamics Mechanism for Convective Heat Transfer Enhancement [J]. Journal of Mechanical Engineering, 2015, 51(10): 152-159.
[15]	DONG Cong;CHEN Yaping. Impact of Block Plates on the Flow and Heat Transfer Performance of Middle-axial-overlap Helical Baffle Heat Exchangers [J]. , 2014, 50(6): 135-140.

XU Xiangguo^{1， 2} ZHAN Sicheng^{1， 2} LIANG Haobin^{1， 2} WANG Xiaofei^{1， 2} ZHONG Ziwen^{1， 2}

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments