STUDY ON INFLUENCE OF USER USAGE HABIT ON PERFORMANCE OF PHOTOVOLTAIC-THERMAL HOT WATER SYSTEM

Hou Longshu; Quan Zhenhua; Du Boyao; Zhao Yaohua; Wang Shanshan

doi:10.19912/j.0254-0096.tynxb.2022-1249

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (12) : 90-98. DOI: 10.19912/j.0254-0096.tynxb.2022-1249

STUDY ON INFLUENCE OF USER USAGE HABIT ON PERFORMANCE OF PHOTOVOLTAIC-THERMAL HOT WATER SYSTEM

Hou Longshu^1,2, Quan Zhenhua¹, Du Boyao¹, Zhao Yaohua¹, Wang Shanshan²

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Abstract

Taking the photovoltaic-thermal hot water system based on the micro heat pipe array as the research object, the operation performance of the system with/without consideration of user usage was studied in detail by means of mathematical simulation. The results show that considering user usage, the initial temperature of water tank is always higher than 40 ℃, but the highter initial temperature has no obvious effect on the improvement of the final temperature, compared with the condition without consideration user usage, its average thermal efficiency, electrical and comprehensive efficiency respectively reduce by 10.7%-34.7%, 0.1%-0.4% and 11.6%-35.4%, especially in cloudy days. It is recommended to introduce double water tank system or optimize user usage habit to improve the performance of the system.

Key words

solar energy / photovoltaic module / mathematical model / PV/T / usage habit / operation performance / thermal efficiency

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Hou Longshu, Quan Zhenhua, Du Boyao, Zhao Yaohua, Wang Shanshan. STUDY ON INFLUENCE OF USER USAGE HABIT ON PERFORMANCE OF PHOTOVOLTAIC-THERMAL HOT WATER SYSTEM[J]. Acta Energiae Solaris Sinica. 2023, 44(12): 90-98 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1249

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