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Conventional and Advanced Exergoeconomic Analysis of a Compound Ejector-Heat Pump for Simultaneous Cooling and Heating

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  • Ali Khalid Shaker Al-Sayyab

    (ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, Universitat Jaume I, 12071 Castelló de la Plana, Spain
    Thermal Mechanical Engineering, Basra Engineering Technical College (BETC), Southern Technical University, 61004 Basra, Iraq)

  • Joaquín Navarro-Esbrí

    (ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, Universitat Jaume I, 12071 Castelló de la Plana, Spain)

  • Victor Manuel Soto-Francés

    (Departamento de Termodinámica Aplicada, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain)

  • Adrián Mota-Babiloni

    (ISTENER Research Group, Department of Mechanical Engineering and Construction, Campus de Riu Sec s/n, Universitat Jaume I, 12071 Castelló de la Plana, Spain)

Abstract

This work focused on a compound PV/T waste heat driven ejector-heat pump system for simultaneous data centre cooling and waste heat recovery for district heating. The system uses PV/T waste heat as the generator’s heat source, acting with the vapour generated in an evaporative condenser as the ejector drive force. Conventional and advanced exergy and advanced exergoeconomic analyses are used to determine the cause and avoidable degree of the components’ exergy destruction rate and cost rates. Regarding the conventional exergy analysis for the whole system, the compressor represents the largest exergy destruction source of 26%. On the other hand, the generator shows the lowest sources (2%). The advanced exergy analysis indicates that 59.4% of the whole system thermodynamical inefficiencies can be avoided by further design optimisation. The compressor has the highest contribution to the destruction in the avoidable exergy destruction rate (21%), followed by the ejector (18%) and condenser (8%). Moreover, the advanced exergoeconomic results prove that 51% of the system costs are unavoidable. In system components cost comparison, the highest cost comes from the condenser, 30%. In the same context, the ejector has the lowest exergoeconomic factor, and it should be getting more attention to reduce the irreversibility by design improving. On the contrary, the evaporator has the highest exergoeconomic factor (94%).

Suggested Citation

  • Ali Khalid Shaker Al-Sayyab & Joaquín Navarro-Esbrí & Victor Manuel Soto-Francés & Adrián Mota-Babiloni, 2021. "Conventional and Advanced Exergoeconomic Analysis of a Compound Ejector-Heat Pump for Simultaneous Cooling and Heating," Energies, MDPI, vol. 14(12), pages 1-27, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:12:p:3511-:d:574225
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    References listed on IDEAS

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    1. Zhao, Hongxia & Yuan, Tianpeng & Gao, Jia & Wang, Xinli & Yan, Jia, 2019. "Conventional and advanced exergy analysis of parallel and series compression-ejection hybrid refrigeration system for a household refrigerator with R290," Energy, Elsevier, vol. 166(C), pages 845-861.
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    Cited by:

    1. Drenusha Krasniqi Alidema & Marigona Krasniqi & Risto V. Filkoski & Fejzullah Krasniqi, 2022. "Analysis of the Working Characteristics of the Ejector in the Water Heating System," Energies, MDPI, vol. 15(6), pages 1-12, March.
    2. Qi, Xinrui & Yang, Chunsheng & Huang, Mingyang & Ma, Zhenjun & Hnydiuk-Stefan, Anna & Feng, Ke & Siarry, Patrick & Królczyk, Grzegorz & Li, Z., 2024. "Conventional and advanced exergy-exergoeconomic-exergoenvironmental analyses of an organic Rankine cycle integrated with solar and biomass energy sources," Energy, Elsevier, vol. 288(C).
    3. Canpolat Tosun, Demet & Açıkkalp, Emin & Altuntas, Onder & Hepbasli, Arif & Palmero-Marrero, Ana I. & Borge-Diez, David, 2023. "Dynamic performance and sustainability assessment of a PV driven Carnot battery," Energy, Elsevier, vol. 278(C).
    4. Jinke Tao & Huitao Wang & Jianjun Wang & Chaojun Feng, 2022. "Exergoeconomic and Exergoenvironmental Analysis of a Novel Power and Cooling Cogeneration System Based on Organic Rankine Cycle and Ejector Refrigeration Cycle," Energies, MDPI, vol. 15(21), pages 1-23, October.
    5. Al-Sayyab, Ali Khalid Shaker & Mota-Babiloni, Adrián & Navarro-Esbrí, Joaquín, 2023. "Performance evaluation of modified compound organic Rankine-vapour compression cycle with two cooling levels, heating, and power generation," Applied Energy, Elsevier, vol. 334(C).

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