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Experimental Study on the Thermal and Electrical Characteristics of an Air-Based Photovoltaic Thermal Collector

Author

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  • Sang-Myung Kim

    (Zero Energy Building Laboratory, Graduate School of Energy Systems Engineering, Kongju National University, Cheonan 31080, Korea)

  • Jin-Hee Kim

    (Green Energy Technology Research Center, Kongju National University, Cheonan 31080, Korea)

  • Jun-Tae Kim

    (Department of Architectural Engineering, Kongju National University, Cheonan 31080, Korea)

Abstract

A photovoltaic thermal (PVT) system is a technology that combines photovoltaics (PV) and a solar thermal collector to produce thermal energy and generate electricity. PVT systems have the advantage that the energy output per unit area is higher than the single use of a PV module or solar thermal collector, since both heat and electricity can be produced and used simultaneously. Air-based PVT collectors use air as the heat transfer medium and flow patterns are important factors that affect the performance of the PVT collector. In this study, the thermal and electrical performance and characteristics of an air-based PVT collector were analyzed through experiments. The PVT collector, with bending round-shaped heat-absorbing plates, which increase the air flow path, has been developed to improve the thermal performance. The experiment was done under the test conditions of ISO 9806:2017 for the thermal performance analysis of an air-based PVT collector. The electrical performance was analyzed under the same conditions. In the results, it can be found that the inlet flow rate of the PVT collector considerably affects the thermal efficiency. It was analyzed that as the inlet flow rate increased from 60 to 200 m 3 /h, the thermal efficiency increased from 29% to 42%. Then, the electricity efficiency was also analyzed, where it was determined that it was improved according to operating condition of PVT collector.

Suggested Citation

  • Sang-Myung Kim & Jin-Hee Kim & Jun-Tae Kim, 2019. "Experimental Study on the Thermal and Electrical Characteristics of an Air-Based Photovoltaic Thermal Collector," Energies, MDPI, vol. 12(14), pages 1-14, July.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:14:p:2661-:d:247520
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    References listed on IDEAS

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    Cited by:

    1. Hwi-Ung Choi & Kwang-Hwan Choi, 2020. "Performance Evaluation of PV/T Air Collector Having a Single-Pass Double-Flow Air Channel and Non-Uniform Cross-Section Transverse Rib," Energies, MDPI, vol. 13(9), pages 1-13, May.
    2. Shiravi, Amir Hossein & Firoozzadeh, Mohammad & Lotfi, Marzieh, 2022. "Experimental study on the effects of air blowing and irradiance intensity on the performance of photovoltaic modules, using Central Composite Design," Energy, Elsevier, vol. 238(PA).
    3. Hwi-Ung Choi & Kwang-Hwan Choi, 2022. "Performance Evaluation of PVT Air Collector Coupled with a Triangular Block in Actual Climate Conditions in Korea," Energies, MDPI, vol. 15(11), pages 1-12, June.
    4. Abdelrazik, A.S. & Shboul, Bashar & Elwardany, Mohamed & Zohny, R.N. & Osama, Ahmed, 2022. "The recent advancements in the building integrated photovoltaic/thermal (BIPV/T) systems: An updated review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 170(C).
    5. Jong-Gwon Ahn & Ji-Suk Yu & Fred Edmond Boafo & Jin-Hee Kim & Jun-Tae Kim, 2021. "Simulation and Performance Analysis of Air-Type PVT Collector with Interspaced Baffle-PV Cell Design," Energies, MDPI, vol. 14(17), pages 1-12, August.
    6. Jin-Hee Kim & Sang-Myung Kim & Jun-Tae Kim, 2021. "Experimental Performance of an Advanced Air-Type Photovoltaic/Thermal (PVT) Collector with Direct Expansion Air Handling Unit (AHU)," Sustainability, MDPI, vol. 13(2), pages 1-10, January.

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