Efficiently Cooling Your Home – Air conditioning the old fashioned way

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I know, there are better ways to cool your house than you cool your food. Nonetheless it must be discussed for the people who just can’t do it any other way.

http://www.bobvila.com/HowTo_Library/EnergyWise_House_Energy_Efficient_Air_Conditioning-Air_Conditioning-A1629.html

EnergyWise House: Energy-Efficient Air ConditioningMany people buy or use air conditioners without understanding their designs, components, and operating principles. Proper sizing, selection, installation, maintenance, and correct use are keys to cost-effective operation and lower overall costs.

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Air conditioners employ the same operating principles and basic components as your home refrigerator. An air conditioner cools your home with a cold indoor coil called the evaporator. The condenser, a hot outdoor coil, releases the collected heat outside. The evaporator and condenser coils are serpentine tubing surrounded by aluminum fins. This tubing is usually made of copper. A pump, called the compressor, moves a heat transfer fluid (or refrigerant) between the evaporator and the condenser. The pump forces the refrigerant through the circuit of tubing and fins in the coils. The liquid refrigerant evaporates in the indoor evaporator coil, pulling heat out of indoor air and thereby cooling the home. The hot refrigerant gas is pumped outdoors into the condenser where it reverts back to a liquid giving up its heat to the air flowing over the condenser’s metal tubing and fins.

Central Air Conditioners
Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers (openings in the walls, floors, or ceilings covered by grills) carry cooled air from the air conditioner to the home. This cooled air becomes warmer as it circulates through the home; then it flows back to the central air conditioner through return ducts and registers. A central air conditioner is either a split-system unit or a packaged unit.In a split-system central air conditioner, an outdoor metal cabinet contains the condenser and compressor, and an indoor cabinet contains the evaporator. In many split-system air conditioners, this indoor cabinet also contains a furnace or the indoor part of a heat pump. The air conditioner’s evaporator coil is installed in the cabinet or main supply duct of this furnace or heat pump. If your home already has a furnace but no air conditioner, a split-system is the most economical central air conditioner to install.Today’s best air conditioners use 30 percent to 50 percent less energy to produce the same amount of cooling as air conditioners made in the mid 1970s. Even if your air conditioner is only 10 years old, you may save 20 percent to 40 percent of your cooling energy costs by replacing it with a newer, more efficient model.But then there is new technology out there:

http://www.smarthouse.com.au/Appliances/Air_Conditioning_And_Heating/W2D2V4S2

Get rid of the bug spray because an air conditioning system that kills bugs and gives you a better night’s sleep has been revealed. The innovative new inverter wall mounted air conditioning systems, that have been scientifically proven to provide a better night’s sleep.

Samsung recently conducted extensive research in Good Sleep technology involving the Bukyung National University, Busan, Korea which revealed that a room’s temperature should change in accordance to sleep patterns, to achieve longer periods of deep sleep and ensure an optimal night’s rest. The Samsung Good Sleep 2 air conditioner control program adjusts temperature profiles to the most comfortable according to the three stages of sleep. 

http://www.smarthouse.com.au/Appliances/Air_Conditioning_And_Heating/K5J2C3C7

Smart Energy Saving Air Conditioner

By Manisha Kanetkar | Monday | 19/03/2007

Australian company Advantage Air has developed a smart reverse cycle air conditioning system that not only saves on your energy bill but is also able to be fully integrated into a home automation system.

According to Advantage Air’s Walter Kimble, all parts of the GEN III air conditioning system are designed to operate as a cohesive, integrated system making it easier for the home automation system integrator to set up. 

The system allows you, among other functions, to control the temperature of individual zones as well as program Fresh Air control.

And with sensors in each zone, the system ensures that no room is being over-heated or over-cooled, thus contributed to the product’s energy efficiency.

The Fresh Air system is an electronically controlled device that measures the temperature outside of the house. If this is cooler than that inside the house (which Advantage says is 25 percent of the time) it opens and brings cool air in. This smart function means not only do you get fresh air circulating around your house (as opposed to the same air re-circulating) but it is also energy efficient. According to the CSIRO, the GEN III is capable of energy savings of up to 38 percent or approximately $1000 a year.

 

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