Energetic, economic and environmental (3E) analysis of R290, R454C and R465A for drop-in split type air conditioning running on R22

IF 6.4 2区工程技术 Q1 THERMODYNAMICS Case Studies in Thermal Engineering Pub Date : 2025-03-13 DOI:10.1016/j.csite.2025.105988

Carlos H.M. Braga , Leonardo V.S. Martins , Juan J.G. Pabon , Luiz Machado , Willian M. Duarte

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Abstract

The present study aims to evaluate the process of drop-in of R22 in split type air conditioning with refrigerant fluids R290, R454C, and R465A. A mathematical model was developed to do an energetic, economic and environmental analysis using different fluids. The mathematical model of the heat exchangers was developed using the moving boundary technique and the compressor was modeled as recommended by the ISO9309 standard. The model was experimentally validated by comparing several results obtained in the laboratory using R22. The average absolute difference between experimental and theoretical results are 3.5%. R465A has cooling capacity 2.5% higher and R290 COP 8.1% higher than R22 in the test condition described by AHRI Standard 210/240. When taking into account cost, efficiency, and environmental effect, R290 is the most suitable replacement for R22 drop-in. R465A is the best option to replace the R22 when taking the cooling capacity results into account.

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.