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Research on system design and capacity calculation method for deep peak shaving of coal-fire unit based on molten salt heat storage assistance
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Tingshan MA1, 2, Wei WANG2, 3, Dongye WANG2, 3, Qing LUO1, 2, Ruyi GENG2, 3, Jianyuan ZHANG2, 3, Wenping JU1, 2, Dongfeng CHANG1, 2, Guolong ZHANG2, 3
Thermal Power Generation | 2023, 52(7) : 113 - 118
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Thermal Power Generation | 2023, 52(7): 113-118
• Intelligent management technologies for coal-fired power plants •
Research on system design and capacity calculation method for deep peak shaving of coal-fire unit based on molten salt heat storage assistance
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Tingshan MA1, 2, Wei WANG2, 3, Dongye WANG2, 3, Qing LUO1, 2, Ruyi GENG2, 3, Jianyuan ZHANG2, 3, Wenping JU1, 2, Dongfeng CHANG1, 2, Guolong ZHANG2, 3
Affiliations
  • 1.State Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage, Beijing 102209, China
  • 2.Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China
  • 3.Xi'an TPRI Energy Conservation Technology Co., Ltd., Xi'an 710054, China
Published: 2023-07-25 doi: 10.19666/j.rlfd.202305055
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Building a new power system focusing on new energy resources puts forward higher requirements for deep peak shaving of coal power unit. Through the requirement analysis of power grid and the comparison of various energy storage technologies, taking the system characteristics analysis of coal power unit as the starting point, a system and a operation mode were given which were based on molten salt thermal storage to assist deep peak shaving of coal power unit. Through theoretical analysis, the calculation methods of the main parameters of subsystems including the heating, heat storage and heat exchange of the molten salt system have been put forward.Taking a 660 MW coal-fired unit as an example, based on the analysis of the thermal boundary and peak shaving demand, the power and connection mode of the electric heating module of the molten salt system are calculated using the calculation method proposed in this article. The types of molten salt and the inlet and outlet parameters of the heat exchange system are selected. The capacity, salt consumption and tank volume of molten salt heat storage are determined. All the results provide reliable data support for accurate accounting of project investment and land occupation. This system and calculation method can provide reference for the preliminary design of similar projects.

coal-fire unit  /  deep peak shaving  /  molten salt heat storage  /  capacity calculation
Tingshan MA, Wei WANG, Dongye WANG, Qing LUO, Ruyi GENG, Jianyuan ZHANG, Wenping JU, Dongfeng CHANG, Guolong ZHANG. Research on system design and capacity calculation method for deep peak shaving of coal-fire unit based on molten salt heat storage assistance[J]. Thermal Power Generation, 2023 , 52 (7) : 113 -118 . DOI: 10.19666/j.rlfd.202305055
Funding
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  • National Key Research and Development Program(2022YFB2405205)
Appendix
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Year 2023 volume 52 Issue 7
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Article Info
doi: 10.19666/j.rlfd.202305055
  • Receive Date：2023-05-07
  • Online Date：2026-01-26
  • Published：2023-07-25
Article Data
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History
  • Received：2023-05-07
Funding
National Key Research and Development Program(2022YFB2405205)
Affiliations
    1.State Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage, Beijing 102209, China
    2.Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, China
    3.Xi'an TPRI Energy Conservation Technology Co., Ltd., Xi'an 710054, China
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红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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