RESEARCH ON IMPACT OF SOLAR ENERGY COLLECTING AND STORAGE DEVICES ON THERMAL ENVIRONMENT OF ASSEMBLED SOLAR GREENHOUSES

Pang Jianwei; Wang Xi; Hou Hongjuan; Xu Baoping; Li Anzhe

doi:10.19912/j.0254-0096.tynxb.2023-1600

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (2) : 470-478. DOI: 10.19912/j.0254-0096.tynxb.2023-1600

RESEARCH ON IMPACT OF SOLAR ENERGY COLLECTING AND STORAGE DEVICES ON THERMAL ENVIRONMENT OF ASSEMBLED SOLAR GREENHOUSES

Pang Jianwei¹, Wang Xi¹, Hou Hongjuan², Xu Baoping¹, Li Anzhe²

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Abstract

In this paper, for the assembled solar greenhouse equipped with passive solar heat collection and storage device, an established computational fluid dynamics transient model was used to analyze the internal thermal environment of the solar greenhouse and the heat storage and release process of its heat storage device. The accuracy of the simulation results was verified through experiments. On this basis, to enhance the utilization of heat storage, the heat storage and release characteristics of the heat storage medium using paraffin wax as phase change material was studied. The results demonstrate that the utilization of this type of heat collection and storage device effectively enhances nighttime temperatures in the greenhouse. Specifically, when the height to thickness ratio of the heat collecting and storage plate is 60 （the height × thickness dimension is 3000 mm×50 mm）, employing a phase change material yieldes optimal results. The average nighttime temperature in the greenhouse can be increased by 1.73 ℃, and the nighttime temperature can be increased by a maximum of 2.34 ℃.

Key words

solar greenhouse / solar energy / heat storage / phase change materials / numerical simulation

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Pang Jianwei, Wang Xi, Hou Hongjuan, Xu Baoping, Li Anzhe. RESEARCH ON IMPACT OF SOLAR ENERGY COLLECTING AND STORAGE DEVICES ON THERMAL ENVIRONMENT OF ASSEMBLED SOLAR GREENHOUSES[J]. Acta Energiae Solaris Sinica. 2025, 46(2): 470-478 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1600

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