Saturday, November 22, 2014

Solar Water Heater: A Research Introduction

In a world where there is desperate search of alternate source of energy to avoid energy crisis in the near future,solar energy has proved to be one of the most effective form of alternate source of energy.Solar energy which is termed as perpetual source of energy is an infinite source of energy and if can be easily manipulated,it can be the main energy source and power earth for many years without any crisis and without degrading nature.Solar water heater is also one of the widely used application of solar energy which uses radiation from the sun to heat water.

Hot water which doesn’t seems like a big issue actually can be considered as one of the important need of people.People use hot water to drink,take a shower,may be wash dishes or clean clothes or other purposes.It is believed that an average American citizen uses 20 gallons of hot water per day which is nearly equal to 120 liters.The energy required to heat such amount of water can be imagined by thinking of time it takes to boil small amount of water to cook one noodle.So lot of energy and also money is being spent in heating water.So solar water heater is one of the important alternate energy source for heating water which saves money and never the less environment.

Due to its many advantages over other water heating sources like fossil fuel,petroleum products or burning wood, its use is increasing throughout the world.But to make it the prime energy source,its efficiency and performance should be increased.So our goal in this research is to increase the working efficiency of solar water heater,provide better insulation for heated water in reservoir tank and provide user with heated water at constant temperatue even though the temperature in the surrounding varies.We purpose to accomplish this goal by adding extra layer of insulation outside reservoir and filling this layer with wax which also stores the extra heat energy from heated water during hot parts of the day and supplies this energy to water which is less heated during cold parts of the day.

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