| 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.
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| Source Publication | JOURNAL OF THERMAL SCIENCE
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| 2016 | |
| Volume | 25Issue:3Pages:258-265 |
| ISSN | 1003-2169 |
| Abstract | 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. |
| Keyword | Pinch Point Position Heat Exchanger Heat Transfer Phase Transition Supercritical Condition |
| DOI | 10.1007/s11630-016-0858-7 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000375514500008 |
| WOS Keyword | ORGANIC RANKINE-CYCLE ; ZEOTROPIC REFRIGERANT MIXTURES ; EVAPORATION TEMPERATURE ; WORKING FLUIDS ; PERFORMANCE ; CONDENSERS |
| WOS Research Area | Thermodynamics ; Engineering, Mechanical |
| Funding Organization | 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. |
| Department | LHD高效洁净燃烧(CPCR) |
| Classification | Q4 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/71950 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | 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. |
| Recommended Citation 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. |
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| JouArt-2016-083.pdf（1371KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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