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Dynamic characteristics analysis of power-to-heat molten salt heat storage and power generation system
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Wenting HU1, Ming LIU1, Shunqi ZHANG2, Wei HAN2, Junjie YAN1
Thermal Power Generation | 2025, 54(9) : 25 - 34
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Thermal Power Generation | 2025, 54(9): 25-34
• Special topic on energy storage and power generation coupling technology •
Dynamic characteristics analysis of power-to-heat molten salt heat storage and power generation system
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Wenting HU1, Ming LIU1, Shunqi ZHANG2, Wei HAN2, Junjie YAN1
Affiliations
  • 1.State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
  • 2.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
Published: 2025-09-25 doi: 10.19666/j.rlfd.202412244
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The dynamic models of steam generation system and power generation system are developed to study the dynamic characteristics of power-to-heat molten salt heat storage and power generation system, and the reliability of the models is validated. The dynamic characteristics of the system are analyzed for the disturbance of molten salt work temperature, flowrate and steam valve opening. Moreover, the performance of the system in the load reduction transient process is investigated in the 100%THA~50%THA load interval. The results show that, the main steam temperature and reheat steam temperature respond quickly to the molten salt temperature disturbance, and their response is obviously faster than that of the unit load and main steam pressure. The molten salt flowrate disturbance has a significant effect on the unit load and main steam pressure, and the unit load increases by 12.44% and the main steam pressure increases by 1.18 MPa with 15% increase in molten salt flowrate. The main steam valve opening controls the main steam pressure and load fluctuation. With the addition of the control system, the maximum load reduction rate of the unit in the 100%THA~50%THA load interval is 14%Pe/min with the limiting condition of temperature deviation.

power-to-heat  /  molten salt heat storage  /  dynamic model  /  dynamic characteristics  /  load cycling rate
Wenting HU, Ming LIU, Shunqi ZHANG, Wei HAN, Junjie YAN. Dynamic characteristics analysis of power-to-heat molten salt heat storage and power generation system[J]. Thermal Power Generation, 2025 , 54 (9) : 25 -34 . DOI: 10.19666/j.rlfd.202412244
Funding
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  • National Natural Science Foundation of China(52276016)
  • Key Research and Development Program of Shaanxi Province(2024GX-ZDCYL-04-10)
  • National Key Research and Development Program(2024YFB2408400)
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Year 2025 volume 54 Issue 9
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Article Info
doi: 10.19666/j.rlfd.202412244
  • Receive Date：2024-12-08
  • Online Date：2026-03-05
  • Published：2025-09-25
Article Data
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History
  • Received：2024-12-08
Funding
National Natural Science Foundation of China(52276016)
Key Research and Development Program of Shaanxi Province(2024GX-ZDCYL-04-10)
National Key Research and Development Program(2024YFB2408400)
Affiliations
    1.State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
    2.Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China
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https://castjournals.cast.org.cn/joweb/rlfd/EN/10.19666/j.rlfd.202412244
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
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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