STUDY ON OPTIMIZATION OF PREHEATING PROCESS OF MOLTEN SALT STORAGE TANK

Yue Song; Chen Yuxuan; Xiao Hu; Wang Ding; Li Ming; Zhang Yanping

doi:10.19912/j.0254-0096.tynxb.2021-0381

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (10) : 113-118. DOI: 10.19912/j.0254-0096.tynxb.2021-0381

STUDY ON OPTIMIZATION OF PREHEATING PROCESS OF MOLTEN SALT STORAGE TANK

Yue Song¹, Chen Yuxuan², Xiao Hu², Wang Ding², Li Ming¹, Zhang Yanping²

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Abstract

Based on the numerical method, the temperature distribution and thermal stress distribution of molten salt storage tank in stepped preheating process were calculated. The effects of temperature end difference and inlet flow rate of preheating gas on preheating time and maximum thermal stress of tank were analyzed. The results show that when the temperature end difference and mass flow rate double, the preheating time is shortened by 78.1% and 61.5%, respectively. Tthe temperature end difference is more significant on the preheating process of molten salt storage tank than the mass flow rate. The research results provide theoretical guidance for high efficiency, low cost and safe preheating of concentrated solar power plant.

Key words

solar thermal power generation / heat storage / molten salt storage tank / preheating / numerical simulation / thermal stress

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Yue Song, Chen Yuxuan, Xiao Hu, Wang Ding, Li Ming, Zhang Yanping. STUDY ON OPTIMIZATION OF PREHEATING PROCESS OF MOLTEN SALT STORAGE TANK[J]. Acta Energiae Solaris Sinica. 2022, 43(10): 113-118 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0381

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