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CFD-based design and simulation of hydrocarbon ejector for cooling

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  • Mohamed, Saleh
  • Shatilla, Youssef
  • Zhang, TieJun

Abstract

Ejector cooling with hydrocarbon as alternative refrigerant promises great application potential in hot climate regions. In order to unleash the potential of these sustainable cooling systems, it is essential to design high-performance hydrocarbon ejectors. In this paper, a computational fluid dynamic (CFD) simulation approach is proposed for detailed ejector modeling. The NIST real gas model is used to incorporate thermophysical properties of actual refrigerants for accurate ejector performance prediction. A hydrocarbon ejector performance is analyzed according to different operating and geometric conditions, where a linear relationship between the expansion ratio and the compression ratio is obtained for Pentane with an accuracy of 0.5%. A set of Pareto Frontier performance curves are also recommended for designing and operating energy-efficient hydrocarbon ejector cooling systems. Our results show that a small area ratio leads to a high ejector compression ratio, which is desired in hot climate applications. The other geometric design parameters have minor effects on the ejector performance. This work also indicates that ejectors with a converging-area chamber can achieve better overall performance compared to conventional ejectors.

Suggested Citation

  • Mohamed, Saleh & Shatilla, Youssef & Zhang, TieJun, 2019. "CFD-based design and simulation of hydrocarbon ejector for cooling," Energy, Elsevier, vol. 167(C), pages 346-358.
    • Handle: RePEc:eee:energy:v:167:y:2019:i:c:p:346-358
    DOI: 10.1016/j.energy.2018.10.057
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    References listed on IDEAS

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    5. 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.
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    Cited by:

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    2. Braimakis, Konstantinos, 2021. "Solar ejector cooling systems: A review," Renewable Energy, Elsevier, vol. 164(C), pages 566-602.
    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. Ravi Koirala & Quoc Linh Ve & Eliza Rupakheti & Kiao Inthavong & Abhijit Date, 2023. "Design Enhancement of Eductor for Active Vapor Transport and Condensation during Two-Phase Single-Species Flow," Energies, MDPI, vol. 16(3), pages 1-22, January.
    5. Anas F A Elbarghthi & Saleh Mohamed & Van Vu Nguyen & Vaclav Dvorak, 2020. "CFD Based Design for Ejector Cooling System Using HFOS (1234ze(E) and 1234yf)," Energies, MDPI, vol. 13(6), pages 1-19, March.
    6. Khafaji, H.K. & Shahsavand, A. & Shooshtari, S. H. Rajaee, 2024. "Simultaneous optimization of crude oil refinery vacuum distillation column and corresponding ejector system," Energy, Elsevier, vol. 294(C).
    7. Besagni, Giorgio, 2019. "Ejectors on the cutting edge: The past, the present and the perspective," Energy, Elsevier, vol. 170(C), pages 998-1003.
    8. Tashtoush, Bourhan M. & Al-Nimr, Moh'd A. & Khasawneh, Mohammad A., 2019. "A comprehensive review of ejector design, performance, and applications," Applied Energy, Elsevier, vol. 240(C), pages 138-172.
    9. Fatong Jia & Dazhang Yang & Jing Xie, 2021. "Numerical Investigation on the Performance of Two-Throat Nozzle Ejectors with Different Mixing Chamber Structural Parameters," Energies, MDPI, vol. 14(21), pages 1-16, October.

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