Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle

The supercritical carbon dioxide (SCO<sub>2</sub>) Brayton cycle, as a substitute for the steam cycle, can be widely used in a variety of power generation scenarios. However, most of the existing SCO<sub>2</sub> cycle studies are restricted to basic thermodynamics research, p...

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Autores principales:	Ping Song, Zhenxing Zhao, Lie Chen, Chunhui Dai, Chonghai Huang, Mengran Liao, Xingsheng Lao, Yuansheng Lin, Wei Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	supercritical carbon dioxide brayton cycle dynamic model simulink Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/a26177c9cbd14f589f4f555e5278011d
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spelling	oai:doaj.org-article:a26177c9cbd14f589f4f555e5278011d2021-11-25T18:50:40ZResearch on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle10.3390/pr91119462227-9717https://doaj.org/article/a26177c9cbd14f589f4f555e5278011d2021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1946https://doaj.org/toc/2227-9717The supercritical carbon dioxide (SCO<sub>2</sub>) Brayton cycle, as a substitute for the steam cycle, can be widely used in a variety of power generation scenarios. However, most of the existing SCO<sub>2</sub> cycle studies are restricted to basic thermodynamics research, parameter optimizations, system design in different application fields, and even economic analysis. Considering the load variability and control flexibility of the power generation system, the dynamic performance research of the SCO<sub>2</sub> cycle is also crucial, but the work done is still limited. Based on the previous studies, Simulink software is used in this paper to develop a dynamic model of the 20 MW-SCO<sub>2</sub> recompression cycle, which specifically includes component models that can independently realize physical functions and an overall closed-loop cycle model. A series of comparative calculation are carried out to verify the models and the results are very positive. The SCO<sub>2</sub> recompression power system is built with the developed models and the dynamic model runs stably with a maximum error of 0.56%. Finally, the simulation of the dynamic switching conditions of the 20 MW-SCO<sub>2</sub> recompression cycle are performed and the analysis results supply instructive suggestions for the system operation and control.Ping SongZhenxing ZhaoLie ChenChunhui DaiChonghai HuangMengran LiaoXingsheng LaoYuansheng LinWei WangMDPI AGarticlesupercritical carbon dioxide brayton cycledynamic modelsimulinkChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1946, p 1946 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	supercritical carbon dioxide brayton cycle dynamic model simulink Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	supercritical carbon dioxide brayton cycle dynamic model simulink Chemical technology TP1-1185 Chemistry QD1-999 Ping Song Zhenxing Zhao Lie Chen Chunhui Dai Chonghai Huang Mengran Liao Xingsheng Lao Yuansheng Lin Wei Wang Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle
description	The supercritical carbon dioxide (SCO<sub>2</sub>) Brayton cycle, as a substitute for the steam cycle, can be widely used in a variety of power generation scenarios. However, most of the existing SCO<sub>2</sub> cycle studies are restricted to basic thermodynamics research, parameter optimizations, system design in different application fields, and even economic analysis. Considering the load variability and control flexibility of the power generation system, the dynamic performance research of the SCO<sub>2</sub> cycle is also crucial, but the work done is still limited. Based on the previous studies, Simulink software is used in this paper to develop a dynamic model of the 20 MW-SCO<sub>2</sub> recompression cycle, which specifically includes component models that can independently realize physical functions and an overall closed-loop cycle model. A series of comparative calculation are carried out to verify the models and the results are very positive. The SCO<sub>2</sub> recompression power system is built with the developed models and the dynamic model runs stably with a maximum error of 0.56%. Finally, the simulation of the dynamic switching conditions of the 20 MW-SCO<sub>2</sub> recompression cycle are performed and the analysis results supply instructive suggestions for the system operation and control.
format	article
author	Ping Song Zhenxing Zhao Lie Chen Chunhui Dai Chonghai Huang Mengran Liao Xingsheng Lao Yuansheng Lin Wei Wang
author_facet	Ping Song Zhenxing Zhao Lie Chen Chunhui Dai Chonghai Huang Mengran Liao Xingsheng Lao Yuansheng Lin Wei Wang
author_sort	Ping Song
title	Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle
title_short	Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle
title_full	Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle
title_fullStr	Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle
title_full_unstemmed	Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle
title_sort	research on dynamic modeling of the supercritical carbon dioxide power cycle
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a26177c9cbd14f589f4f555e5278011d
work_keys_str_mv	AT pingsong researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT zhenxingzhao researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT liechen researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT chunhuidai researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT chonghaihuang researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT mengranliao researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT xingshenglao researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT yuanshenglin researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle AT weiwang researchondynamicmodelingofthesupercriticalcarbondioxidepowercycle
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Research on Dynamic Modeling of the Supercritical Carbon Dioxide Power Cycle

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