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The performance of a triple pressure level absorption cycle with working fluids based on the absorbent DMEU and the refrigerants R-22, R-32, R-124, R-125, R-134a and R-152a.

Author(s) : JELINEK M., LEVY A., BORDE I.

Type of article: Article

Summary

This paper compares the performance of a single-stage triple pressure level absorption cycle with different refrigerant-absorbentpairs. Four HFC refrigerants namely: R-32, R-125, R-134a and R-152a which are alternative to HCFC, such as R-22 and R-124, in combination with the absorbent dimethylethylenurea (DMEU) were considered. The highest COP and the lowest circulation ratio, were found as a function of the generator temperature for a given evaporating and cooling water temperatures. The sensitivity of the COP and circulation ratio for evaporator and cooling water temperatures changes at the maximum COP for the best three working fluids were also examined. It was obtained that the preferable pair is R-124/DMEU and among working fluids based on HFC the preferable pair is the R-125/DMEU. [Reprinted with permission from Elsevier. Copyright, 2008].

Details

  • Original title: The performance of a triple pressure level absorption cycle with working fluids based on the absorbent DMEU and the refrigerants R-22, R-32, R-124, R-125, R-134a and R-152a.
  • Record ID : 2008-1625
  • Languages: English
  • Source: Applied Thermal Engineering - vol. 28 - n. 11-12
  • Publication date: 2008/08

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