University of Guilan Caspian Journal of Environmental Sciences 1735-3033 2024 08 28 Optimizing the thermodynamic air conditioning system in order to reduce energy consumption and pollution 1 17 7971 10.22124/cjes.2024.7971 EN Amir Soroureddin Abadi Department of Mechanical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran Morteza Rahmanpour Department of Mechanical Engineering, Azarbaijan Shahid Madani University, Tabriz, Iran Mohammadali Nasrabadi Department of Mechanical and Materials Engineering, Nebraska Hall, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA Journal Article 2024 08 28 By  the increased  global warming on the one hand and the cost of energy on the other hand, the use of air conditioning systems that can have the least pollution and energy consumption has attracted the attention of various industries. Therefore, in this article, an attempt has been made to adjust the air conditioning system for cooling and heating in such a way that it has a proper performance while reducing energy consumption. For this purpose, the design of the air conditioning system has been optimized with the objective function of reducing energy consumption and the condition of providing air conditioning (functional condition). The peso algorithm is used for optimization. The designed system shows that by designing an optimal system, energy consumption can be reduced by 20% in the same efficiency and performance of air conditioning, which leads to a reduction in cost and pollution. Also, the results showed that by freely adjusting the parameters, compared to the basic state, the power consumption and efficiency of the system will increase by 10 and 20 percent, respectively.