Abstract

Numerous air conditioners are running without a proper refrigerant charge due to leakage and improper charging during installation. Therefore, there is a need to understand the performance of the air conditioner if it is not properly charged for the means of optimal operation and cost saving. This study is focusing on the usage of a used small capacity split-unit type air conditioner using R-22 refrigerant. The objective is to study the condenser performance over a variation of refrigerant charges. From the results, it is clear that the optimum refrigerant charge is 100%. The highest cooling capacity and COP were 3,330 J/s and 3.05 respectively.

Highlights

  • One of the appliances that consume a huge amount of energy in everyday life is an air conditioner

  • The CT increased with the increase of refrigerant charge and peaked at 100% charge (3,330 J/s at 30° outdoor temperature)

  • The present work emphasises on determining the performance of the air conditioner over a variation of refrigerant charges

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Summary

Introduction

One of the appliances that consume a huge amount of energy in everyday life is an air conditioner. The air conditioner can be seen operating everywhere on the planet, from residential, commercial as well as industries and the usage has been extensive. It is one of the major electrical energy consuming appliance in residential [1,2]. It accounts for more than 50% of building energy usage [3]. The most common air conditioner type used is split-type, mainly because of its simplicity and flexibility [5]

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