Share

IIR document

Fast calculation method for performance upper-limit of (quasi) two-stage vapour compression system.

Number: 1128

Author(s) : YANG X., WANG B., CHENG Z.

Summary

(Quasi) two-stage system is an important method to improve the energy efficiency of vapour compression refrigeration cycle, especially under high compression ratio. Since vapour injection was proposed for room air conditioners, many researches were conducted to study the performance of the vapour injection system and the factors that affected the performance of system. Many experiments and simulations were conducted to investigate the performance of two-stage compression or gas injected systems. However, the performance improvements reported by different researches vary in a large range due to different systems, refrigerants, operating conditions or methods. These results are barely comparable, which is not good for distinguishing the wrongs or drawbacks in design or control of the system. Therefore, it is important to propose a method which can quickly obtain the performance upper-limit of different refrigeration under different operating conditions in order to evaluate the research conclusions. In this research, general analytical expressions of (quasi) two-stage vapour compression cycle are proposed and verified to quickly calculate the upper-limit performance of (quasi) two-stage systems.

Available documents

Format PDF

Pages: 8

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Fast calculation method for performance upper-limit of (quasi) two-stage vapour compression system.
  • Record ID : 30027654
  • Languages: English
  • Source: IIR Rankine Conference 2020.
  • Publication date: 2020/07/31
  • DOI: http://dx.doi.org/10.18462/iir.rankine.2020.1128

Links


See other articles from the proceedings (75)
See the conference proceedings

Indexing