EXPERIMENTAL RESEARCH ON HEAT RELEASE OF HEAT STORAGE DEVICE BASED ON SPIRAL COIL

Fang Guihua; Liu Yingjie; Wang Feng; Tan Xin

doi:10.19912/j.0254-0096.tynxb.2021-0659

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (12) : 166-171. DOI: 10.19912/j.0254-0096.tynxb.2021-0659

EXPERIMENTAL RESEARCH ON HEAT RELEASE OF HEAT STORAGE DEVICE BASED ON SPIRAL COIL

Fang Guihua, Liu Yingjie, Wang Feng, Tan Xin

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Abstract

Based on the constant pitch spiral coil heat storage device and its improvement, a gradual spiral coil heat storage device is designed, and the PCM heat release performance of HTF in the coil under different Dean’s number（De） and inlet temperature is investigated.Studies have demonstrated that when inlet temperature are constant,an increase in De shortens the heat release time, and the heat release time of the gradual pitch at different inlet temperatures is shorter than that of the constant pitch, suggesting the improvement in the heat release efficiency.

Key words

solar energy / phase change heat storage / enhanced heat transfer / solar energy utilization rate / thermal storage device

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Fang Guihua, Liu Yingjie, Wang Feng, Tan Xin. EXPERIMENTAL RESEARCH ON HEAT RELEASE OF HEAT STORAGE DEVICE BASED ON SPIRAL COIL[J]. Acta Energiae Solaris Sinica. 2022, 43(12): 166-171 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0659

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