Investigation on the Pinch Point Position in Heat Exchangers

doi:10.1007/s11630-016-0858-7

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Investigation on the Pinch Point Position in Heat Exchangers
	Pan LS(潘利生); Shi Weixiu; Pan, LS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.; Shi, WX (reprint author), Beijing Univ Civil Engn & Architecture, Sch Environm & Energy Engn, Beijing 100044, Peoples R China.
刊名	JOURNAL OF THERMAL SCIENCE
	2016
卷号	25 期号:3 页码:258-265
关键词	Pinch Point Position Heat Exchanger Heat Transfer Phase Transition Supercritical Condition
ISSN号	1003-2169
DOI	10.1007/s11630-016-0858-7
文献子类	Article
英文摘要	The pinch point is important for analyzing heat transfer in thermodynamic cycles. With the aim to reveal the importance of determining the accurate pinch point, the research on the pinch point position is carried out by theoretical method. The results show that the pinch point position depends on the parameters of the heat transfer fluids and the major fluid properties. In most cases, the pinch point locates at the bubble point for the evaporator and the dew point for the condenser. However, the pinch point shifts to the supercooled liquid state in the near critical conditions for the evaporator. Similarly, it shifts to the superheated vapor state with the condensing temperature approaching the critical temperature for the condenser. It even can shift to the working fluid entrance of the evaporator or the supercritical heater when the heat source fluid temperature is very high compared with the absorbing heat temperature. A wrong position for the pinch point may generate serious mistake. In brief, the pinch point should be founded by the iterative method in all conditions rather than taking for granted.
分类号	Q4
WOS关键词	ORGANIC RANKINE-CYCLE ; ZEOTROPIC REFRIGERANT MIXTURES ; EVAPORATION TEMPERATURE ; WORKING FLUIDS ; PERFORMANCE ; CONDENSERS
WOS研究方向	Thermodynamics ; Engineering, Mechanical
语种	英语
WOS记录号	WOS:000375514500008
资助机构	Project 51306198 supported by National Natural Science Foundation of China is gratefully acknowledged. Thomas Tartiere who worked at Enertime in Paris reminded me of the importance of confirming pinch point position.
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/71950]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Pan, LS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.; Shi, WX (reprint author), Beijing Univ Civil Engn & Architecture, Sch Environm & Energy Engn, Beijing 100044, Peoples R China.
推荐引用方式 GB/T 7714	Pan LS,Shi Weixiu,Pan, LS ,et al. Investigation on the Pinch Point Position in Heat Exchangers[J]. JOURNAL OF THERMAL SCIENCE,2016,25(3):258-265.
APA	潘利生,Shi Weixiu,Pan, LS ,&Shi, WX .(2016).Investigation on the Pinch Point Position in Heat Exchangers.JOURNAL OF THERMAL SCIENCE,25(3),258-265.
MLA	潘利生,et al."Investigation on the Pinch Point Position in Heat Exchangers".JOURNAL OF THERMAL SCIENCE 25.3(2016):258-265.