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Analysis of the operation performance of a hybrid solar ground-source heat pump system
Highlights The performance is not optimal in maintaining soil initial temperature balance. The performance of solar assisted ground source heat pump system can reach 4.95. The performance of whole system can reach 3.49 at the heating season. Solar space heating can improve the performance of whole system by nearly 25.8%.
Abstract The operational performance of a hybrid solar ground source heat pump (HSGSHP) system built at the Hebei University of Technology and composed of a ground source heat pump (GSHP) system and a solar-assisted ground source heat pump (SAGSHP) system is investigated in this work. For the GSHP system, the coefficient of performance (COP) of heat pump unit and system of the GSHP system varies from 4.59 to 5.07 and 3.87 to 4.28, respectively, in the cooling seasons from 2012 to 2016. During the heating season, the COP of heat pump unit and system of the GSHP system varies from 4.59 to 5.07 and 3.87 to 4.28, respectively. The annual COP of heat pump unit and system of the GSHP system increases from 3.19 to 4.18 and 3.03 to 3.63, respectively. For the SAGSHP system, solar space heating can improve performance by nearly 79.0%. For the HSGSHP system, increasing the proportion of the heat supply of the SAGSHP system within a certain range can effectively improve the COP of the HSGSHP system in the heating season. The results show that solar space heating can improve the performance of the HSGSHP system by nearly 25.8%.
Analysis of the operation performance of a hybrid solar ground-source heat pump system
Highlights The performance is not optimal in maintaining soil initial temperature balance. The performance of solar assisted ground source heat pump system can reach 4.95. The performance of whole system can reach 3.49 at the heating season. Solar space heating can improve the performance of whole system by nearly 25.8%.
Abstract The operational performance of a hybrid solar ground source heat pump (HSGSHP) system built at the Hebei University of Technology and composed of a ground source heat pump (GSHP) system and a solar-assisted ground source heat pump (SAGSHP) system is investigated in this work. For the GSHP system, the coefficient of performance (COP) of heat pump unit and system of the GSHP system varies from 4.59 to 5.07 and 3.87 to 4.28, respectively, in the cooling seasons from 2012 to 2016. During the heating season, the COP of heat pump unit and system of the GSHP system varies from 4.59 to 5.07 and 3.87 to 4.28, respectively. The annual COP of heat pump unit and system of the GSHP system increases from 3.19 to 4.18 and 3.03 to 3.63, respectively. For the SAGSHP system, solar space heating can improve performance by nearly 79.0%. For the HSGSHP system, increasing the proportion of the heat supply of the SAGSHP system within a certain range can effectively improve the COP of the HSGSHP system in the heating season. The results show that solar space heating can improve the performance of the HSGSHP system by nearly 25.8%.
Analysis of the operation performance of a hybrid solar ground-source heat pump system
Zhang, Xueyou (author) / Wang, Enyu (author) / Liu, Liansheng (author) / Qi, Chengying (author) / Zhen, Jinyu (author) / Meng, Ying (author)
Energy and Buildings ; 268
2022-05-24
Article (Journal)
Electronic Resource
English
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