Thermodynamic analysis and evolutionary algorithm based on multi-objective optimization of performance for irreversible four-temperature-level refrigeration

¹ Department of Mechanical Engineering, Pardis Branch, Islamic Azad University, Pardis New City, Iran
² Department of Petroleum Engineering, Ahwaz Faculty of Petroleum Engineering, Petroleum University of Technology (PUT), Ahwaz, Iran
³ Laboratoire d’Energétique et de Mécanique Théorique et Appliquée, ENSEM, 2 avenue de la Forêt de Haye, 54518 Vandoeuvre-lès-Nancy, France

^⋆ Corresponding author: mohammadhosein.ahmadi@gmail.com

Received: 23 July 2014
Accepted: 1 October 2014

Abstract

This paper presents a developed ecological function for absorption refrigerators with four-temperature-level. Moreover, aforementioned absorption refrigerator is optimized by implementing ecological function. With the aim of the first and second laws of thermodynamics, an equivalent system is initially determined. To reach the addressed goal of this research, two objective functions: the coefficient of performance (COP) and the ecological function (E) have been involved in optimization process simultaneously. The first aforementioned objective function has to maximize the rest objective functions, on the other hand, have to maximize in parallel optimization process. Developed multi objective evolutionary approaches (MOEAs) on the basis of NSGA-II method are implemented throughout this work.