Thermoeconomic optimization of subcooled and superheated vapor compression refrigeration cycle

Selbas R. , Kizilkan O. , Sencan A.

ENERGY, vol.31, no.12, pp.2108-2128, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 12
  • Publication Date: 2006
  • Doi Number: 10.1016/
  • Title of Journal : ENERGY
  • Page Numbers: pp.2108-2128


An exergy-based thermoeconomic optimization application is applied to a subcooled and superheated vapor compression refrigeration system. The advantage of using the exergy method of thermoeconomic optimization is that various elements of the system-i.e., condenser, evaporator, subcooling and superheating heat exchangers-can be optimized on their own. The application consists of determining the optimum heat exchanger areas with the corresponding optimum subcooling and superheating temperatures. A cost function is specified for the optimum conditions. All calculations are made for three refrigerants: R22, R134a, and R407c. Thermodynamic properties of refrigerants are formulated using the Artificial Neural Network methodology. (c) 2005 Elsevier Ltd. All rights reserved.