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Thermo-economic analysis of an integrated combined heating, cooling, and power unit with dish collector and organic Rankine cycle

Author

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  • Mirzaei, Mohammad Reza
  • Kasaeian, Alibakhsh
  • Sadeghi Motlagh, Maryam
  • Fereidoni, Sahar

Abstract

In recent years, the integration of renewable resources into simultaneous production systems has resulted in a substantial reduction in fuel consumption when compared to the conventional methods. This study focuses on the design and modeling of a CCHP (combined cooling, heating, and power) system for the campus of Faculty of New Sciences and Technologies, University of Tehran. The system harnesses the primary energy and heat derived from a dish collector and natural gas, while electricity generation is facilitated by a Brayton cycle. Additionally, two organic Rankine cycles recover the waste heat and generate supplementary electricity downstream of the system. The total efficiency of this system attained 79%, and the total exergy efficiency of the CCHP reached 48%. When examining the economic sector, noteworthy savings can be observed, compared to a centralized power generation system. This can be attributed to a 37% reduction in fuel consumption, resulting from the adoption of the dish collector as the primary supplier. Overall, this is a novel setup that involves two stages of ORC, along with a dish collector and combustion chamber that supply the microturbine. The proposed system in this article could be a guide for novel commercial and residential systems in the future.

Suggested Citation

  • Mirzaei, Mohammad Reza & Kasaeian, Alibakhsh & Sadeghi Motlagh, Maryam & Fereidoni, Sahar, 2024. "Thermo-economic analysis of an integrated combined heating, cooling, and power unit with dish collector and organic Rankine cycle," Energy, Elsevier, vol. 296(C).
    • Handle: RePEc:eee:energy:v:296:y:2024:i:c:s0360544224008612
    DOI: 10.1016/j.energy.2024.131089
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