| Heat Recuperation for the Self-Condensing CO2 Transcritical Power Cycle | |
Pan LS(潘利生)1 ; Shi, Weixiu2; Sun, Yin2; Sun, Yiwei2; Wei XL(魏小林)1
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| Corresponding Author | Pan, Lisheng([email protected]) |
| Source Publication | JOURNAL OF THERMAL SCIENCE
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| 2024-04-16 | |
| Pages | 12 |
| ISSN | 1003-2169 |
| Abstract | The supercritical CO2 Brayton cycle has potential to be used in electricity generation occasions with its advantages of high efficiency and compact structure. Focusing on a so-called self-condensing CO2 transcritical power cycle, a model was established and four different layouts of heat recuperation process were analyzed, a without-recuperation cycle, a post-recuperation cycle, a pre-recuperation cycle and a re-recuperation cycle. The results showed that the internal normal cycle's share of the whole cycle increases with increasing the cooling pressure and decreasing the final cooled temperature. Heat load in the supercritical heater decreases with increasing the cooling pressure. From perspective of performance, the re-recuperation cycle and the pre-recuperation cycle have similar thermal efficiency which is much higher than other two layouts. Both thermal efficiency and net power output have a maximum value with the cooling pressure, except in the condition with the final cooled temperature of 31(degrees)C. Considering both the complexity and the economy, the pre-recuperation cycle is more applicable than the other options. Under 35(degrees)C of the final cooled temperature, the thermal efficiency of the pre-recuperation cycle reaches the peak 0.34 with the cooling pressure of 8.4 MPa and the maximum net power output is 2355.24 kW at 8.2 MPa of the cooling pressure. |
| Keyword | CO2 transcritical power cycle heat recuperation process self-condensing |
| DOI | 10.1007/s11630-024-1977-1 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:001204774500001 |
| WOS Keyword | BRAYTON CYCLE ; PERFORMANCE ; GENERATION ; TEMPERATURE ; ORC |
| WOS Research Area | Thermodynamics ; Engineering |
| WOS Subject | Thermodynamics ; Engineering, Mechanical |
| Funding Project | National Natural Science Foundation of China[51776215] ; National Natural Science Foundation of China[12372237] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Pan, Lisheng |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94976 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China; 2.Beijing Univ Civil Engn & Architecture, Sch Environm & Energy Engn, Beijing 100044, Peoples R China |
| Recommended Citation GB/T 7714 | Pan LS,Shi, Weixiu,Sun, Yin,et al. Heat Recuperation for the Self-Condensing CO2 Transcritical Power Cycle[J]. JOURNAL OF THERMAL SCIENCE,2024:12.Rp_Au:Pan, Lisheng |
| APA | 潘利生,Shi, Weixiu,Sun, Yin,Sun, Yiwei,&魏小林.(2024).Heat Recuperation for the Self-Condensing CO2 Transcritical Power Cycle.JOURNAL OF THERMAL SCIENCE,12. |
| MLA | 潘利生,et al."Heat Recuperation for the Self-Condensing CO2 Transcritical Power Cycle".JOURNAL OF THERMAL SCIENCE (2024):12. |
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