• Economic feasibility of an inverter and conventional air conditioners for residential buildings in Iraq
• Author  :  Mohammed Ali Sami
• Pages   :  1-4, DOI: https://doi.org/10.14741/ijtt/v.9.1.1
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• Abstract

The use of air conditioners has become a necessity recently in the Republic of Iraq due to the very hot weather of Iraq and the inability of citizens to withstand high temperatures in the summer. This led to an increase in the annual electricity bill, hence the aim of this study is to study the economic feasibility of air conditioners supported by the technology of the inverter and its importance in energy saving. This research presents economic analysis to investigate the Payback period (PP) and net present value (NPV) between a conventional air conditioner and inverter type air conditioner. The selected air conditioners used in this study are from 1800 BTU inverter and non-inverter type spilt unit, residential air conditioner. The mathematical model of economic analysis is developed based on proposed model developed by previous researches. The economic analysis showed that the increase in the percentage of energy saving and the daily operating hours reduces the Payback period in the case of the use of air conditioner supported by an Inverter technology compared to a traditional air conditioner. It is found that an inverter type air conditioner with highest operating time of 15 hours per day has shortest PP of only (3 year), and the net present value(NPV=+900,221.05 IQD ) and internal rate of return (IRR=55%) .

Keywords: Economic feasibility, payback period, inverter air conditioner, conventional air conditioner, net present value (NPV).