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Electricity a Blessing in Summer
by
Abraham White
The great and useful invention of electricity paved way for comfort and ease of mankind. It made possible to do tasks in shorter period of time sparing more time for leisure and/or other activities. Electricity is used in almost all the appliances and gadgets that we use in way or the other; one such useful application of electricity is in keeping the atmosphere under control on a hot humid summer day and this article intends to throw light on this particular factor.
Fans and air conditioners are two useful machines that work on electricity and keep the atmosphere tolerable; however, fans consume less electricity as compared to air conditioners. This is because electric current is used to operate a simple motor. The motor rotates turning the shaft attached to it which in turn rotates the fan blades at the speed of motor. As the current is varied the motor speed and hence, the speed of fan is controlled. The other appliance used in homes and offices is the air conditioner. Air conditioners follow different phenomena as compared to fans and therefore, different components constitute an air conditioner. As opposed to motor, shaft and blades in fans, air conditioners have compressor, evaporator, condenser and blower. Electricity actuates all these components that are interlinked to lower down the ambient temperature. This is done by sucking air from a room and storing it a high pressure in a compressor. The compressed air is passed through condenser where it rejects latent heat to the atmosphere becoming cooler; the blower then blows cooled air into the room. Fans and air conditioners do work on electricity but they follow two separate working principles. Fans simple increase air flow rate which causes faster heat transfer from a body in the vicinity to atmosphere which creates a feel of coolness in human beings when precipitation is evaporated quickly leaving cooler skin behind. Air conditioners, on the other hand, blow cooled air in a closed room, as explained above, and remove warmer air. This makes the room cool and cools anything or anyone in it.
A
mini air conditioner
can also be bought that operates on batteries and blows cooled air same as an air conditioner would do but it follows evaporative cooling unlike absorption cooling in air conditioners.
Article Source:
ArticleRich.com