Seasonal performance comparison analysis of the roll-bond photovoltaic thermal heat pump system in a multi-energy generation: An experimental study

Chao Zhou; Ahmad Riaz; Jingjing WangJili Zhang

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Seasonal performance comparison analysis of the roll-bond photovoltaic thermal heat pump system in a multi-energy generation: An experimental study

机译：Seasonal performance comparison analysis of the roll-bond photovoltaic thermal heat pump system in a multi-energy generation: An experimental study

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摘要

Solar photovoltaic thermal heat pump systems contribute significantly to the building industry's goal of energy efficiency and "carbon neutrality" by producing multiple types of energy from the intensive use of solar energy to meet the varied and dispersed energy requirements of modem buildings. An experimental investigation of the roll-bond photovoltaic thermal heat pump system powered by a roll-bond photovoltaic thermal unit is presented in this study, together with the system's precise operating principle and the structural design of the unit. The theoretical underpinnings of experimental research are discussed, including the establishment of test platforms and error analysis, as well as the method for evaluating system performance, which includes solar power, heating, and cooling. Following that, continuous experiment monitoring under various weather conditions in Dalian is carried out throughout the year, which serves as the basis for system performance evaluation and comparison, with a focus on heating, power, and cooling. Comparison analysis results show that the heating and power generation performance in the summer season is the highest, with an average photovoltaic efficiency of 13.6% and an average heating coefficient of performance of 6.16, which is followed by the transition season and winter season, with an average photovoltaic efficiency and heating coefficient of performance of 11.9% and 6.05, 10.2% and 4.54, respectively. However, the performance of power and heating cogeneration in summer conditions fluctuates due to variations in solar radiation intensity. Furthermore, the system can run in cooling mode during the night, on overcast days, and on rainy periods to generate cooling capacity. The cooling performance is the highest during clear nighttime, followed by the overcast nighttime and overcast daytime, with an average cooling coefficient of performance of 2.99, 2.66, and 2.12, separately. Rain, as a cooling water source, significantly improves system cooling performance. The results show that the proposed roll-bond photovoltaic thermal heat pump system can generate high-efficient multi-energy under a variety of weather conditions while remaining stable over time, providing a valuable practical feasibility reference for renewable energy utilization in buildings in northern China.

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来源
《Energy conversion & management》 |2022年第12期|116430.1-116430.19|共19页
作者
Chao Zhou; Ahmad Riaz; Jingjing WangJili Zhang;
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作者单位

School of Architectural Engineering, Weifang University of Science and Technology, Weifang 262700, China , Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China;

Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China , University of Engineering & Technology, Lahore 54890, Pakistan;

School of Architectural Engineering, Weifang University of Science and Technology, Weifang 262700, ChinaFaculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Roll-bond photovoltaic thermal; PVT heat pump; Multi-energy generation; Performance comparison; Experimental research;

Seasonal performance comparison analysis of the roll-bond photovoltaic thermal heat pump system in a multi-energy generation: An experimental study

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