Thermal and fluid dynamic optimization of a CPV-T receiver for solar co-generation applications: numerical modelling and experimental validation
| Autor: | Daniel Santos, Ahmet Azgın, Jesus Castro, Deniz Kizildag, Joaquim Rigola, Bilge Tunçel, Raşit Turan, Rupert Preßmair, Richard Felsberger, Armin Buchroithner |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Tèrmica, Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics, Universitat Politècnica de Catalunya. Centre Tecnològic de la Transferència de Calor, Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de Transferència de Calor |
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: |
Solar cells
Renewable Energy Sustainability and the Environment Energies::Energia solar fotovoltaica [Àrees temàtiques de la UPC] Física::Termodinàmica [Àrees temàtiques de la UPC] Cogeneration of electric power and heat Heat sink Dinàmica de fluids computacional Computational fluid dynamics Photovoltaic power generation Receiver Solar energy Cogeneració de calor i d'electricitat Concentrated photoVoltaic thermal system Energia solar fotovoltaica |
| Popis: | Solar co-generation, i.e., the generation of electricity and heat in a single device by concentrating the sunbeams, has the potential to significantly increase the overall system performance. The main challenge is related to the cooling of solar cells. In order to do so, it is essential to reduce the thermal resistance between the cell and heat transfer fluid. This paper features the optimization procedure of a low-cost custom concentrated photovoltaic thermal (CPV-T) receiver for a parabolic trough collector using silicon solar cells. A finite volume model for the thermal process has been developed. Hence, a fluid dynamic thermal simulation of the receiver is presented. The optimized heat sink tube geometries have been manufactured and tested in a lab environment, allowing for a comparison between modelling and experimental test results. Three possible heat sink geometries have been designed and compared regarding their overall heat transfer coefficient with respect to the non-dimensional pumping power, i.e. the ratio between the overall transferred heat and the energy required for pumping. The overall heat transfer coefficient for a finned heat sink has been increased up to 60% with respect to a baseline case without fins under similar conditions. This project has received funding from SOLAR-ERA.NET Cofund 2 joint call undertaking under the European Union’s Horizon 2020 research and innovation programme. This work has also been supported by Scientific and Technological Research Council of Türkiye (TÜBİTAK) under grant number 219M028. The authors acknowledge the Heat and Environment Laboratory, Mechanical Engineering Department, METU, and the help of Bulent G. Akinoglu and Elsen Aydin. D. Santos acknowledges FI AGAUR-Generalitat de Catalunya fellowship (2022FI_B2_00173). |
| Databáze: | OpenAIRE |
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