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Operation study of the photovoltaic thermal heat pump integrated energy system under trigeneration condition and harsh conditions

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  • Mi, Peiyuan
  • Zhang, Jili
  • Han, Youhua

Abstract

In recent years, the photovoltaic thermal heat pump has gained significant attention as a near zero-carbon energy technology, due to the comprehensive ability to provide heating in winter, cooling in summer, photovoltaic power generation and domestic hot water throughout the year. However, owing to the incomplete research on the system operating characteristics in trigeneration condition and harsh conditions, the production performance and operational stability of the photovoltaic thermal heat pump were not widely recognized. In view of the above problems, the following studies were conducted in this paper: First, the integrated energy system based on the modular photovoltaic thermal heat pump was designed and constructed. Then, the system operation in severe hot and cold season was carried out and the operational stability of the system under harsh operating conditions was demonstrated sufficiently. Afterwards, the operation of the system under the continuous trigeneration operation were analyzed. During the 7-day trigeneration operation, the average hot water output was 12.12 tons and the average photovoltaic power generation was 88.5 kWh in the daytime heating operation. Besides, the average coefficient of cooling performance was 2.32 in the nighttime cooling operation and the effective cooling-supply time of the system was approximately 4 h.

Suggested Citation

  • Mi, Peiyuan & Zhang, Jili & Han, Youhua, 2024. "Operation study of the photovoltaic thermal heat pump integrated energy system under trigeneration condition and harsh conditions," Energy, Elsevier, vol. 312(C).
    • Handle: RePEc:eee:energy:v:312:y:2024:i:c:s0360544224034741
    DOI: 10.1016/j.energy.2024.133696
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    References listed on IDEAS

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    2. Guo, Xiaochao & Wu, Yiping & Deng, Jiewen & Peng, Chenwei & Qiang, Wenbo & Wei, Qingpeng, 2025. "Investigation into the switching mechanism of photovoltaic-thermal power heat pipe/heat pump composite cycle system in cogeneration mode," Energy, Elsevier, vol. 340(C).

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