IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v12y2020i19p8178-d423592.html
   My bibliography  Save this article

Energy Analysis of a Novel Ejector-Compressor Cooling Cycle Driven by Electricity and Heat (Waste Heat or Solar Energy)

Author

Listed:
  • Fahid Riaz

    (Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore)

  • Kah Hoe Tan

    (Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore)

  • Muhammad Farooq

    (Department of Mechanical Engineering, University of Engineering and Technology, GT Road, Lahore 54000, Pakistan)

  • Muhammad Imran

    (School of Mechanical, Biomedical and Design Engineering, College of Engineering and Applied Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK)

  • Poh Seng Lee

    (Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore)

Abstract

Low-grade heat is abundantly available as solar thermal energy and as industrial waste heat. Non concentrating solar collectors can provide heat with temperatures 75–100 °C. In this paper, a new system is proposed and analyzed which enhances the electrical coefficient of performance (COP) of vapour compression cycle (VCC) by incorporating low-temperature heat-driven ejectors. This novel system, ejector enhanced vapour compression refrigeration cycle (EEVCRC), significantly increases the electrical COP of the system while utilizing abundantly available low-temperature solar or waste heat (below 100 °C). This system uses two ejectors in an innovative way such that the higher-pressure ejector is used at the downstream of the electrically driven compressor to help reduce the delivery pressure for the electrical compressor. The lower pressure ejector is used to reduce the quality of wet vapour at the entrance of the evaporator. This system has been modelled in Engineering Equation Solver (EES) and its performance is theoretically compared with conventional VCC, enhanced ejector refrigeration system (EERS), and ejection-compression system (ECS). The proposed EEVCRC gives better electrical COP as compared to all the three systems. The parametric study has been conducted and it is found that the COP of the proposed system increases exponentially at lower condensation temperature and higher evaporator temperature. At 50 °C condenser temperature, the electrical COP of EEVCRC is 50% higher than conventional VCC while at 35 °C, the electrical COP of EEVCRC is 90% higher than conventional VCC. For the higher temperature heat source, and hence the higher generator temperatures, the electrical COP of EEVCRC increases linearly while there is no increase in the electrical COP for ECS. The better global COP indicates that a small solar collector will be needed if this system is driven by solar thermal energy. It is found that by using the second ejector at the upstream of the electrical compressor, the electrical COP is increased by 49.2% as compared to a single ejector system.

Suggested Citation

  • Fahid Riaz & Kah Hoe Tan & Muhammad Farooq & Muhammad Imran & Poh Seng Lee, 2020. "Energy Analysis of a Novel Ejector-Compressor Cooling Cycle Driven by Electricity and Heat (Waste Heat or Solar Energy)," Sustainability, MDPI, vol. 12(19), pages 1-21, October.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:19:p:8178-:d:423592
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/12/19/8178/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/12/19/8178/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Chen, Qian & Alrowais, Raid & Burhan, Muhammad & Ybyraiymkul, Doskhan & Shahzad, Muhammad Wakil & Li, Yong & Ng, Kim Choon, 2020. "A self-sustainable solar desalination system using direct spray technology," Energy, Elsevier, vol. 205(C).
    2. Chen, Jianyong & Jarall, Sad & Havtun, Hans & Palm, Björn, 2015. "A review on versatile ejector applications in refrigeration systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 49(C), pages 67-90.
    3. Chesi, Andrea & Ferrara, Giovanni & Ferrari, Lorenzo & Tarani, Fabio, 2012. "Suitability of coupling a solar powered ejection cycle with a vapour compression refrigerating machine," Applied Energy, Elsevier, vol. 97(C), pages 374-383.
    4. Mao, Ning & Pan, Dongmei & Li, Zhao & Xu, Yingjie & Song, Mengjie & Deng, Shiming, 2017. "A numerical study on influences of building envelope heat gain on operating performances of a bed-based task/ambient air conditioning (TAC) system in energy saving and thermal comfort," Applied Energy, Elsevier, vol. 192(C), pages 213-221.
    5. Li, Xinguo & Zhao, Cuicui & Hu, Xiaochen, 2012. "Thermodynamic analysis of Organic Rankine Cycle with Ejector," Energy, Elsevier, vol. 42(1), pages 342-349.
    6. Zhang, Kun & Chen, Xue & Markides, Christos N. & Yang, Yong & Shen, Shengqiang, 2016. "Evaluation of ejector performance for an organic Rankine cycle combined power and cooling system," Applied Energy, Elsevier, vol. 184(C), pages 404-412.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Llorenç Macia & Robert Castilla & Pedro Javier Gamez-Montero & Gustavo Raush, 2022. "Multi-Factor Design for a Vacuum Ejector Improvement by In-Depth Analysis of Construction Parameters," Sustainability, MDPI, vol. 14(16), pages 1-16, August.
    2. Tauseef Aized & Muhammad Rashid & Fahid Riaz & Ameer Hamza & Hafiz Zahid Nabi & Muhammad Sultan & Waqar Muhammad Ashraf & Jaroslaw Krzywanski, 2022. "Energy and Exergy Analysis of Vapor Compression Refrigeration System with Low-GWP Refrigerants," Energies, MDPI, vol. 15(19), pages 1-22, October.
    3. Fahid Riaz & Fu Zhi Yam & Muhammad Abdul Qyyum & Muhammad Wakil Shahzad & Muhammad Farooq & Poh Seng Lee & Moonyong Lee, 2021. "Direct Analytical Modeling for Optimal, On-Design Performance of Ejector for Simulating Heat-Driven Systems," Energies, MDPI, vol. 14(10), pages 1-21, May.
    4. Yiming Zhao & Haoran Li & Dapeng Hu & Minghao Liu & Qing Feng, 2022. "Study on the Performance of Collaborative Production Mode for Gas Wave Ejector," Sustainability, MDPI, vol. 14(12), pages 1-21, June.
    5. Fahid Riaz & Muhammad Abdul Qyyum & Awais Bokhari & Jiří Jaromír Klemeš & Muhammad Usman & Muhammad Asim & Muhammad Rizwan Awan & Muhammad Imran & Moonyong Lee, 2021. "Design and Energy Analysis of a Solar Desiccant Evaporative Cooling System with Built-In Daily Energy Storage," Energies, MDPI, vol. 14(9), pages 1-17, April.
    6. Victoria Kornienko & Mykola Radchenko & Andrii Radchenko & Hanna Koshlak & Roman Radchenko, 2023. "Enhancing the Fuel Efficiency of Cogeneration Plants by Fuel Oil Afterburning in Exhaust Gas before Boilers," Energies, MDPI, vol. 16(18), pages 1-20, September.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Fahid Riaz & Fu Zhi Yam & Muhammad Abdul Qyyum & Muhammad Wakil Shahzad & Muhammad Farooq & Poh Seng Lee & Moonyong Lee, 2021. "Direct Analytical Modeling for Optimal, On-Design Performance of Ejector for Simulating Heat-Driven Systems," Energies, MDPI, vol. 14(10), pages 1-21, May.
    2. Jeon, Yongseok & Kim, Sunjae & Kim, Dongwoo & Chung, Hyun Joon & Kim, Yongchan, 2017. "Performance characteristics of an R600a household refrigeration cycle with a modified two-phase ejector for various ejector geometries and operating conditions," Applied Energy, Elsevier, vol. 205(C), pages 1059-1067.
    3. Besagni, Giorgio & Mereu, Riccardo & Inzoli, Fabio, 2016. "Ejector refrigeration: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 373-407.
    4. Fahid Riaz & Muhammad Abdul Qyyum & Awais Bokhari & Jiří Jaromír Klemeš & Muhammad Usman & Muhammad Asim & Muhammad Rizwan Awan & Muhammad Imran & Moonyong Lee, 2021. "Design and Energy Analysis of a Solar Desiccant Evaporative Cooling System with Built-In Daily Energy Storage," Energies, MDPI, vol. 14(9), pages 1-17, April.
    5. Cai, Benan & Long, Chengjun & Du, Qiaochen & Zhang, Wenchao & Hou, Yandong & Wang, Haijun & Cai, Weihua, 2023. "Analysis of a spray flash desalination system driven by low-grade waste heat with different intermittencies," Energy, Elsevier, vol. 277(C).
    6. Mahmoudi, S.M.S. & Akbari Kordlar, M., 2018. "A new flexible geothermal based cogeneration system producing power and refrigeration," Renewable Energy, Elsevier, vol. 123(C), pages 499-512.
    7. Bi, Rongshan & Chen, Chen & Li, Jiansong & Tan, Xinshun & Xiang, Shuguang, 2018. "Research on the CFD numerical simulation of flash boiling atomization," Energy, Elsevier, vol. 165(PA), pages 768-781.
    8. Valerie Eveloy & Dereje S. Ayou, 2019. "Sustainable District Cooling Systems: Status, Challenges, and Future Opportunities, with Emphasis on Cooling-Dominated Regions," Energies, MDPI, vol. 12(2), pages 1-64, January.
    9. Hu, Bin & Wu, Di & Wang, R.Z., 2018. "Water vapor compression and its various applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 98(C), pages 92-107.
    10. Mao, Ning & Hao, Jingyu & He, Tianbiao & Song, Mengjie & Xu, Yingjie & Deng, Shiming, 2019. "PMV-based dynamic optimization of energy consumption for a residential task/ambient air conditioning system in different climate zones," Renewable Energy, Elsevier, vol. 142(C), pages 41-54.
    11. Cui, X. & Islam, M.R. & Chua, K.J., 2019. "Experimental study and energy saving potential analysis of a hybrid air treatment cooling system in tropical climates," Energy, Elsevier, vol. 172(C), pages 1016-1026.
    12. Karthick, S.K. & Rao, Srisha M.V. & Jagadeesh, G. & Reddy, K.P.J., 2018. "Experimental parametric studies on the performance and mixing characteristics of a low area ratio rectangular supersonic gaseous ejector by varying the secondary flow rate," Energy, Elsevier, vol. 161(C), pages 832-845.
    13. 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.
    14. Najjaran, Ahmad & Freeman, James & Ramos, Alba & Markides, Christos N., 2019. "Experimental investigation of an ammonia-water-hydrogen diffusion absorption refrigerator," Applied Energy, Elsevier, vol. 256(C).
    15. Knut Emil Ringstad & Krzysztof Banasiak & Åsmund Ervik & Armin Hafner, 2022. "Swirl-Bypass Nozzle for CO 2 Two-Phase Ejectors: Numerical Design Exploration," Energies, MDPI, vol. 15(18), pages 1-30, September.
    16. Seo, Hyunduk & Aliyu, Aliyu M. & Kim, Kyung Chun, 2018. "Enhancement of momentum transfer of bubble swarms using an ejector with water injection," Energy, Elsevier, vol. 162(C), pages 892-909.
    17. Li, Huashan & Cao, Fei & Bu, Xianbiao & Wang, Lingbao & Wang, Xianlong, 2014. "Performance characteristics of R1234yf ejector-expansion refrigeration cycle," Applied Energy, Elsevier, vol. 121(C), pages 96-103.
    18. Valerie Eveloy & Yusra Alkendi, 2021. "Thermodynamic Performance Investigation of a Small-Scale Solar Compression-Assisted Multi-Ejector Indoor Air Conditioning System for Hot Climate Conditions," Energies, MDPI, vol. 14(14), pages 1-31, July.
    19. Tang, Yongzhi & Liu, Zhongliang & Shi, Can & Li, Yanxia, 2018. "A novel steam ejector with pressure regulation to optimize the entrained flow passage for performance improvement in MED-TVC desalination system," Energy, Elsevier, vol. 158(C), pages 305-316.
    20. Yang, Xiaolin & Liu, Zhaoyang & Xia, Jianjun, 2023. "Optimization and analysis of combined heat and water production system based on a coal-fired power plant," Energy, Elsevier, vol. 262(PB).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:12:y:2020:i:19:p:8178-:d:423592. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.