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Thermodynamic analysis of a novel ejector-assisted hybrid compression-absorption-resorption refrigeration system with multiple refrigerating effects.

Number: 0060

Author(s) : KUMAR A., MODI A.

Summary

This study proposes a novel ejector-assisted compression-absorption-resorption refrigeration system comprises of two sub-cycles, namely absorption-resorption sub-cycle and compression sub-cycle. The proposed system delivers two simultaneous refrigerating effects (RE) to the end-users. The absorption-resorption sub-cycle delivers RE at -5 °C by utilizing available heat (thermal energy), while the cascaded compression sub-cycle delivers RE at 7 °C, simultaneously. The thermal coefficient of performance (COPth) of the proposed system is calculated, and a parametric analysis is performed to study the effect of operating temperatures, and compression ratios. The results indicate that, the proposed system achieves a maximum COPth of 0.84 at Ph = 14.5 bar, and reduces the consumption of electricity by 31 %. The performance of the cascaded compression sub-cycle is evaluated in terms of electrical COP (COPe) using R717, R600, R290, R134a, and R410a refrigerants. Among all the refrigerants, the compression sub-cycle attains the highest COPe of 5.8 with R717.

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Details

  • Original title: Thermodynamic analysis of a novel ejector-assisted hybrid compression-absorption-resorption refrigeration system with multiple refrigerating effects.
  • Record ID : 30029684
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0060
  • Document available for consultation in the library of the IIR headquarters only.

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