How Solar air Conditioning works ????

The important idea, though, is that solar energy solar water heater dealers in chennai  can be used to provide a portion of this temperature increase, reducing the compressor’s workload and allowing the compressor to consume less electricity.

The idea that a very hot solar collector  solar water heater dealers in chennai  can help an air conditioner cool more efficiently can be confusing. In order to understand how solar air conditioning can save so much energy, it helps to first have a basic understanding of how conventional air conditioners work.

How solar energy helps

We can send the refrigerant through a solar energy collector before the fluid reaches the compressor, and solar energy solar water heater dealers in chennai  can do a portion of the work—heating up the refrigerant—that would normally be accomplished by the compressor. This allows the compressor to run less, or to operate at a lower speed, and thus use less electrical energy. You can click on the image at right to see a larger diagram and explanation of this process.

Dumping the heat outdoors

The very hot refrigerant gas leaving the compressor flows into another coil called the condenser coil. This coil looks and behaves very much like a car radiator, radiating heat from the hot refrigerant into the outside air as a fan pulls outside air across the coil. The condenser  solar water heater dealers in chennai  coil gets its name from the fact that the refrigerant gas condenses back into a liquid as it gives up heat to the outside air. You can easily verify that heat is solar water heater dealers in chennai  being dumped into the outside air by placing your hand into the exhaust air flow of the condenser fan. This exhaust air should be hotter than the surrounding air—even on a 95°F summer day.

Completing the cycle

The refrigerant cools as it moves through the condenser coil, down to perhaps 85–110°F. We employ another physics trick to get the refrigerant back into the 20–40°F range necessary for cooling. Just as compressing the refrigerant increases its temperature, solar water heater dealers in chennai  allowing the refrigerant to expand will cause its temperature to fall. This is accomplished by forcing the refrigerant through a tiny opening—aptly named an expansion valve—that allows the fluid’s pressure and temperature to fall substantially as it emerges  solar water heater dealers in chennai  from the tiny passage.

With the refrigerant cooled back down to 20–40°F, the cycle repeats.

Air conditioners also control humidity.

Humidity is water vapor in the air. Humidity makes people uncomfortable because as the moisture content of air increases, it becomes increasingly difficult for sweat—the body’s built-in cooling solar water heater dealers in chennai  mechanism—to evaporate from the skin. The clammy or sticky feeling you experience during hot, humid weather is caused by sweat on your skin that cannot evaporate.

Central air conditioning systems dehumidify indoor air by the same principle that causes moisture to form on the surface of a glass of iced tea on a hot summer day. As air in solar water heater dealers in chennai  contact with the glass cools, the air falls below the minimum temperature necessary to hold water as a vapor. As a result, water vapor in the air condenses on the glass surface.

Similarly, warmer house air cools as it passes over the very cold evaporator coil in the air handler, solar water heater dealers in chennai  losing the ability to hold water as a vapor. As a result, water vapor in the air condenses on the outer surfaces of the evaporator coil.

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