Performance Evaluation of Split Air Conditioner with Consideration of Pressure Drop in Evaporator and Condenser PUNIT MISHRA 1 *, SHUBHAM SONI 2 and GOVIND MAHESHWARI 3 1 Mechanical Engineering Department, Shri G S Institute of Technology and Science, Rajiv Gandhi Prodyogiki Vishwavidhyalaya, Indore, India. 2 Mechanical Engineering Department, Medicaps University, Indore, India. 3 Mechanical Engineering Department, Institute of Engineering and Technology, Devi Ahilya Vishwavidhyalaya, Indore, India. Abstract In this research, a split air conditioner's performance has been evaluated using exergy analysis on three different low global warming potential (GWP) refrigerants, namely R32, R447A, and R447B, to find a replacement for the GWP-high refrigerant R410A. With regard for pressure loss in the evaporator and condenser, a computational model is built to recreate the operational conditions of a split air conditioner.GENETRON Properties 1.4 software is used to calculate performance metrics such as coefficient of performance (COP), exergy destruction ratio, exergetic efficiency, and efficiency defect. Result shows that pressure drop in evaporator alone has an adverse effect on COP and total exergy destruction and it is higher at higher pressure drop. Effect of pressure drop on exergetic efficiency and exergy destruction ratio is found to be less significantwith condenser pressure drop compared to evaporator pressure drop. Exergy efficiency is found to be maximum with R447A followed by R447B, R32, and R410A. CONTACT Punit Mishra enggpunit@gmail.com Mechanical Engineering Department, Shri G S Institute of Technology and Science, Rajiv Gandhi Prodyogiki Vishwavidhyalaya, Indore, India. © 2022 The Author(s). Published by Enviro Research Publishers. This is an Open Access article licensed under a Creative Commons license: Attribution 4.0 International (CC-BY). Doi: http://dx.doi.org/10.12944/CWE.17.3.8 Article History Received: 25 June 2022 Accepted: 07 October 2022 Keywords Efficiency Defect; Exergetic Efficiency; Exergy Destruction; Pressure Drop; R32; R410A; R447A, R447B. Current World Environment www.cwejournal.org ISSN: 0973-4929, Vol. 17, No. (3) 2022, Pg. 592-601 Introduction In looking toward the exponentially rising demand for energy, and environmental protection aspect, researchers from every corner of the globe have been involved to find some new refrigerants with the expectation of improved performance along with eco-friendly aspects considering global warming. Global warming is one of the key concern that should be considered while selecting a refrigerant, as it is one of the major contributor of the undesirable phenomenon known as global warming. 1-3 Global climate change may be caused by a wide range