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Effects of combined heat transfer on the thermo-economic performance of irreversible solar-driven heat engines

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  • Ust, Yasin

Abstract

A thermo-economic performance analysis and optimization has been carried out for an irrversible solar-driven heat engine with losses due to heat transfer across finite temperature differences, heat leak and internal irreversibilities. In the considered heat engine model, heat transfer from the hot reservoir is assumed to be simultaneous radiation and convection mode and the heat transfer to the cold reservoir is assumed to be convection mode. The effects of the technical and economical parameters on the thermo-economic performance have been investigated in order to see the collective effects of the radiation and convection modes of heat transfer. Also the optimal performance parameters of the heat engine, such as the thermal efficiency, temperatures of the working fluid and the ratio of heat transfer areas have been discussed in detail.

Suggested Citation

  • Ust, Yasin, 2007. "Effects of combined heat transfer on the thermo-economic performance of irreversible solar-driven heat engines," Renewable Energy, Elsevier, vol. 32(12), pages 2085-2095.
    • Handle: RePEc:eee:renene:v:32:y:2007:i:12:p:2085-2095
    DOI: 10.1016/j.renene.2006.11.007
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    References listed on IDEAS

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    1. Sogut, Oguz Salim & Durmayaz, Ahmet, 2005. "Performance optimization of a solar driven heat engine with finite-rate heat transfer," Renewable Energy, Elsevier, vol. 30(9), pages 1329-1344.
    2. Sahin, Bahri & Ust, Yasin & Yilmaz, Tamer & Akcay, Ismail Hakki, 2006. "Thermoeconomic analysis of a solar driven heat engine," Renewable Energy, Elsevier, vol. 31(7), pages 1033-1042.
    3. Göktun, S. & Özkaynak, S. & Yavuz, H., 1993. "Design parameters of a radiative heat engine," Energy, Elsevier, vol. 18(6), pages 651-655.
    4. Yilmaz, Tamer & Ust, Yasin & Erdil, Ahmet, 2006. "Optimum operating conditions of irreversible solar driven heat engines," Renewable Energy, Elsevier, vol. 31(9), pages 1333-1342.
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    Cited by:

    1. Valencia-Ortega, G. & Levario-Medina, S. & Angulo-Brown, F. & Barranco-Jiménez, M.A., 2023. "Energetic optimization and local stability of heliothermal plant models under three thermo-economic performance regimes," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 613(C).
    2. Wu, Lanmei & Lin, Guoxing & Chen, Jincan, 2010. "Parametric optimization of a solar-driven Braysson heat engine with variable heat capacity of the working fluid and radiation–convection heat losses," Renewable Energy, Elsevier, vol. 35(1), pages 95-100.

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