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- W4386143326 endingPage "102080" @default.
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- W4386143326 abstract "The ejection-compression cooling cycle has gained attention due to its superior performance. However, there is limited research on combining the ejector refrigeration cycle with the vapor compression subcooling cycle (ES) driven by a low-grade heat source. Therefore, this study compares the proposed ES system with traditional vapor compression refrigeration and ejection-compression refrigeration cycles with an evaporator-condenser (EC). The aim of this comparative analysis is to evaluate the combined cycles using various performance metrics such as global coefficient of performance (COP), electrical COP, low-grade heat conversion ratio, and discount payback period. The evaluation is conducted under different operating conditions to provide recommendations for specific applications. The results show that ES exhibits better economic performance when solar heat is utilized, while EC focuses more on electricity saving when waste heat is used. In the base case, ES achieves a 2.24 times higher electrical COP than EC while consuming only 20% of the low-grade heat. The global COP of EC is 0.74, whereas ES achieves 2.08. The total exergy destruction in EC is 18.32 kW, which indicates a 165.51% increase compared to ES (6.90 kW), highlighting better exergy performance for ES. The discount payback periods for EC range from 25.33 to 9.24 years, while for ES, they range from 12.06 to 2.85 years. Based on these findings, ES shows more promise as a technology for investment and further development. This comparative analysis provides valuable insights into the strengths and weaknesses of the two combined cycles, aiding decision-making processes for implementing these systems in different applications." @default.
- W4386143326 created "2023-08-25" @default.
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- W4386143326 date "2023-10-01" @default.
- W4386143326 modified "2023-10-02" @default.
- W4386143326 title "Comparative study on two low-grade heat driven ejection-compression refrigeration cycles with evaporator-condenser and evaporator-subcooler" @default.
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- W4386143326 doi "https://doi.org/10.1016/j.tsep.2023.102080" @default.
- W4386143326 hasPublicationYear "2023" @default.
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