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Thermodynamic analysis of binary mixtures as R22 substitutes in water-cooled chillers.

Author(s) : BHUSARI S. V., SHERIF S. A.

Summary

First and second law analyses and optimization studies have been performed on the binary mixture of R124 and R143a in a refrigeration system employing a water-cooled condenser and a water chiller. Performance of this mixture is evaluated employing a single-stage vapour compression system with and without a liquid-suction heat exchanger. First law optimization results in maximizing the coefficient of performance (COP), thus providing maximum heat removal for minimum power input. Second law optimization, on the other hand, results in maximizing the exergetic efficiency and minimizing entropy generation within the system. Optimized exergetic efficiency provides maximum cooling for the smallest destruction of available energy (exergy). All of the afore mentioned optimization efforts are combined to yield the optimum concentration ratio for the mixture, thus streamlining the design process.

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Details

  • Original title: Thermodynamic analysis of binary mixtures as R22 substitutes in water-cooled chillers.
  • Record ID : 2005-0047
  • Languages: English
  • Source: 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Publication date: 2003/08/17

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