固态电制热储热传热匹配特性及热控制方法

doi:10.19595/j.cnki.1000-6753.tces.190442

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Abstract The solid-state electric heating thermal storage system is an emerging large-capacity peak shaving technology in power system. Studying its heat transfer matching characteristic and heat control method is of great significance for improving reliability and heat transfer. In this paper, by establishing the heat transfer rate balance equation and using numerical simulation method, the correlation between the design parameters of heat storage system and heat transfer matching is analyzed. And through the heat transfer matching performance evaluation criteria such as the step contribution degree, the Biot number and the Fourier number, the heat transfer matching optimization design effect is quantified and compared. The results show that the temperature of the thermal storage unit increases linearly with the increase of electric heating power, decreases exponentially with the increase of hole ratio and circulating wind speed. Reducing the electric heating power, increasing the hole ratio and circulating wind speed can enhanced the soaking heat, and increasing the hole ratio can improve the thermal storage degree. The experimental verification proves that through the multi-parameter collaborative optimization and the feedforward compensation control, better heat transfer matching can be achieved.

Key words： Solid-state electric heating thermal storage heat transfer matching performance evaluation criteria heat control

Received: 16 April 2019

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TM924

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	Articles by authors
	Xing Zuoxia
	Fan Jinpeng
	Chen Lei
	Ge Weichun
	Qi Fengsheng

Cite this article:

Xing Zuoxia,Fan Jinpeng,Chen Lei等. Heat Transfer Matching Characteristic and Heat Control Method of Solid-State Electric Heating Thermal Storage System[J]. Transactions of China Electrotechnical Society, 2020, 35(11): 2439-2447.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190442 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I11/2439

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