Performance And Evaluation of Desert Cooler

Performance And Evaluation of Desert Cooler

Abstract

The domestic and Commercial sectors are major contributors to the electrical load during Peak hours in big cities. With rising incomes and aspirations, electrical appliances such as desert coolers, air conditioner, refrigerators etc. are no longer considered as luxury item. Annual energy demand increasing day by day. In summer, the energy consumption is highest in all the sectors for comfort i.e. use of desert coolers, air conditioners is more. This being added burden on energy producing systems. Low energy efficiency and low power factor of the desert air coolers imposing undue burden on the power system in summer.

In this paper, major aspects pertaining to energy efficiency of desert coolers are considered & suggestions are made for improvement. The testing of desert coolers according to IS code is given more emphasis to overcome the shortcomings in manufacture & power consumption.

Introduction

In summers, frequent interruptions in power supply are a common occurrence now-a-days. The main reason being overloading of the power generation system. Basically the generation capacity falls short of peak load. Therefore, peak demand management is an important aspect for the power system, apart from the energy saving. Another problem faced by the power system is deterioration of power factor during the summer months because of larger inductive load. Lower power factor means higher transmission losses, overloading of transmission lines and distribution cables, excessive voltage drop etc. In summer house hold appliances on demand are air cooler, refrigerators, air conditioners, Washing machine, Motor pump, etc. and generally power overloading problem occurs due to excess use of these house hold appliances.

Desert cooler is the main house hold appliance which is use in summer condition for comfort in hot & dry weather of Indian topography i.e. desert like conditions. Desert coolers have high inductive load component because of inductive motor used in it. Desert coolers appear to provide good scope for energy saving, peak demand management and power factor improvement.

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