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Exergy analysis of solar collectors, from incident radiation to dissipation

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  • Pons, Michel

Abstract

It is essential to know the actual exergy input of solar radiation in a given location in order to establish the exergy budget of a solar collector or any other solar-powered process. To do so, the theories on the entropy of attenuated radiation must be re-interpreted before developing a method for evaluating the exergy flux from meteorological data. It then becomes possible to build a generic framework for describing the exergy budget of solar collectors. Three main types of exergy losses can be identified in this way. The first is related only to the type of technology chosen for the collector: flat-type collectors and highly concentrating collectors do not have same exergy losses. The second type of exergy loss is related mainly to heat dissipation, showing that all dissipated heat fluxes can be combined as the overall exergy loss. The third type is related to the utility furnished by the collector. Graphical examples are shown in a diagram that provides more information than the Sankey diagram.

Suggested Citation

  • Pons, Michel, 2012. "Exergy analysis of solar collectors, from incident radiation to dissipation," Renewable Energy, Elsevier, vol. 47(C), pages 194-202.
    • Handle: RePEc:eee:renene:v:47:y:2012:i:c:p:194-202
    DOI: 10.1016/j.renene.2012.03.040
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    References listed on IDEAS

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    1. Koroneos, Christopher & Spachos, Thomas & Moussiopoulos, Nikolaos, 2003. "Exergy analysis of renewable energy sources," Renewable Energy, Elsevier, vol. 28(2), pages 295-310.
    2. Kara, Ozer & Ulgen, Koray & Hepbasli, Arif, 2008. "Exergetic assessment of direct-expansion solar-assisted heat pump systems: Review and modeling," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(5), pages 1383-1401, June.
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    4. Torchia-Núñez, J.C. & Porta-Gándara, M.A. & Cervantes-de Gortari, J.G., 2008. "Exergy analysis of a passive solar still," Renewable Energy, Elsevier, vol. 33(4), pages 608-616.
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    Cited by:

    1. Eduardo Rodríguez & José M. Cardemil & Allan R. Starke & Rodrigo Escobar, 2022. "Modelling the Exergy of Solar Radiation: A Review," Energies, MDPI, vol. 15(4), pages 1-26, February.
    2. Amaya Martínez-Gracia & Sergio Usón & Mª Teresa Pintanel & Javier Uche & Ángel A. Bayod-Rújula & Alejandro Del Amo, 2021. "Exergy Assessment and Thermo-Economic Analysis of Hybrid Solar Systems with Seasonal Storage and Heat Pump Coupling in the Social Housing Sector in Zaragoza," Energies, MDPI, vol. 14(5), pages 1-32, February.
    3. Sonja Kallio & Monica Siroux, 2023. "Exergy and Exergy-Economic Approach to Evaluate Hybrid Renewable Energy Systems in Buildings," Energies, MDPI, vol. 16(3), pages 1-22, January.
    4. Arabhosseini, Akbar & Samimi-Akhijahani, Hadi & Motahayyer, Mehrnosh, 2019. "Increasing the energy and exergy efficiencies of a collector using porous and recycling system," Renewable Energy, Elsevier, vol. 132(C), pages 308-325.
    5. Petela, Karolina & Szlek, Andrzej, 2019. "Energy and exergy analysis of solar heat driven chiller under wide system boundary conditions," Energy, Elsevier, vol. 168(C), pages 440-449.

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