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Energy and exergy analysis of solar heat driven chiller under wide system boundary conditions

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  • Petela, Karolina
  • Szlek, Andrzej

Abstract

In the paper, a solar driven ammonia-water chiller is investigated, as one of the systems having potential for reduction of resources depletion. An energy and exergy analysis is proposed for correct diagnostics while designing and operating the cycle. The boundary conditions for the analyses are set in accordance with Professor Szargut's primary instructions. They are however widened to solar collector component. Solar radiation is treated as the driving energy or exergy, respectively. The analyses are supplemented with a sensitivity diagnosis revealing the most significant parameters modifying the efficiency and irreversibilities distribution. According to the findings, design COP of the chiller equals 0.444 while its net exergy efficiency is 0.026. Solar collector component is the most burdened with exergy destruction and loss in the whole cycle.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:168:y:2019:i:c:p:440-449
    DOI: 10.1016/j.energy.2018.11.067
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    References listed on IDEAS

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    1. Pons, Michel, 2012. "Exergy analysis of solar collectors, from incident radiation to dissipation," Renewable Energy, Elsevier, vol. 47(C), pages 194-202.
    2. Petela, Karolina & Manfrida, Giampaolo & Szlek, Andrzej, 2017. "Advantages of variable driving temperature in solar absorption chiller," Renewable Energy, Elsevier, vol. 114(PB), pages 716-724.
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    Cited by:

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