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Thursday, May 10, 2012

Buying an air-conditioner


As mercury levels rise, air conditioners come as a blessing: they help you beat the heat. With so much advertising from various AC manufacturers on features, consumers today are a confused lot. Let us understand some of the basic features of an AC so that you are able to buy an energy efficient AC.

Air-conditioning or cooling is more complicated than heating. Instead of using energy to create heat, ACs use energy to take heat away. The most common air-conditioning system uses a compressor cycle (similar to the one used by your refrigerator) to transfer heat from your house to the outdoors.
How is this done? A compressor is filled with a special fluid called a refrigerant (usually one of the environmentally notorious chlorofluorocarbons). One of this chemical's properties is that it can change back and forth between liquid and gas. As it changes, it absorbs or releases heat.

Thus, it is used to "carry" heat from one place to another, such as from the inside of a refrigerator to the outside, or, in an air conditioner, from the inside of a house to the outside. An air conditioner takes heat from a cooler place and dumps it in a warmer place, seemingly working against the laws of physics. What drives the process, of course, is electricity—quite a lot of it, in fact.

Human comfort

In looking at how air-conditioning costs can be reduced, it helps to understand how temperature affects human comfort. The standard human comfort range for light clothing in the summer is between 72 degrees Fahrenheit and 78 degrees Fahrenheit and between 35% and 60% relative humidity, according to the American Society for Heating, Refrigeration, and Air- Conditioning Engineers (ASHRAE).

The comfort range can be extended to 82 degrees F with modest air movement, as might be provided by ceiling fans, for example. Often, the house can be kept within this range using little or no mechanical air-conditioning.

Coolaire Consolidated’s Daikin systems offer the kinds of innovative and unique product features that deliver the optimum in air conditioned comfort and control.  Waste no more time and visit http://coolaireconsolidated.com/

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