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Emergy-based exergoeconomic and exergoenvironmental assessment of a novel CCHP system integrated with PEME and PEMFC for a residential building

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  • Sabbaghi, Mohammad Ali
  • Soltani, M.
  • Fraser, Roydon
  • Dusseault, M.B.

Abstract

Multi-generation systems can contribute to reducing energy consumption. To optimize the performance of these systems from technical, economic, and environmental viewpoints, it is necessary to evaluate them accurately in the design stages. In this study, a multi-generation system for generating power, heating, and cooling to meet residential building demands is presented and subjected to emergoeconomic and emergoenvironmental analyses. The proposed system consists of the subsystems ejector refrigeration and transcritical CO2 (TCO2) cycle, activated by the combination of solar and biomass energy. The power produced in the TCO2 cycle is used for hydrogen production through a proton exchange membrane electrolyzer (PEME). The hydrogen is then consumed in a fuel cell to produce more electricity. Results indicate that the highest exergy destruction is associated with the biomass-fueled boiler, which accounts for about 56.5 % of the total exergy destruction of the system. The system can produce 56.4 kW of power, 3.16 kg/h of hydrogen, 120 kW of cooling, and 56.6 kW of heating. The average costs and environmental impacts of the products per emergy unit for the system are 2.05E+11 and 5.32E+11 sej/s, respectively.

Suggested Citation

  • Sabbaghi, Mohammad Ali & Soltani, M. & Fraser, Roydon & Dusseault, M.B., 2024. "Emergy-based exergoeconomic and exergoenvironmental assessment of a novel CCHP system integrated with PEME and PEMFC for a residential building," Energy, Elsevier, vol. 305(C).
    • Handle: RePEc:eee:energy:v:305:y:2024:i:c:s0360544224020759
    DOI: 10.1016/j.energy.2024.132301
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    References listed on IDEAS

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    1. Yun Liu & Johan Afendi Bin Ibrahim & Yen Sin Foo, 2024. "Emergy-Based Evaluation of the Sustainability of Agricultural Ecosystem in Dazhou, China, from 2002 to 2022," Sustainability, MDPI, vol. 16(21), pages 1-16, October.

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