Journal
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
Volume 178, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.rser.2023.113233
Keywords
Hybrid photovoltaic -thermal (PV -T) collector; Experimental validation; Reversible heat pump; Monitoring system; Transient model; Space cooling; Space heating
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This study aimed to validate a transient model of a solar hybrid pilot plant using PV-T collectors integrated with a rev-HP. The plant provides space heating, cooling, DHW and electricity to an industrial building in Zaragoza, Spain. The validation results showed good agreement between the transient model and experimental performance of the PV-T collectors, with slight deviations for thermal and electrical generation. The integration of the PV-T system with a high-performance rev-HP enables self-sufficiency in meeting the building energy demand.
This work aims to validate a transient model of a solar hybrid pilot plant based on photovoltaic-thermal (PV-T) collectors integrated via thermal storage tanks with an air-to-water reversible heat pump (rev-HP). The pilot plant is in operation and provides space heating, cooling, domestic hot water (DHW) and electricity to an in-dustrial building located in Zaragoza (Spain). The plant consists of eight uncovered PV-T collectors (2.6 kWe, 13.6 m2), two water tanks and a rev-HP with a nominal thermal power of 16 kW for heating and 10.5 kW for cooling. The validation results show that the transient model fits the experimental performance of the PV-T collectors, with an average error of-16% and 3%, for the thermal and electrical generation respectively. The accuracy of the estimated rev-HP performance depends on the operation mode. The estimated COP in cooling mode has an average error of 14%, while in heating mode has an average error of-10%. The results show that the integration of the thermal and electrical generation of the PV-T collectors with a high-performance rev-HP allows the solar PV-T system to be self-sufficient to satisfy the building energy demand.
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