In hot places, it becomes important to cool the inside of buildings. Contemporary buildings have refrigeration systems, known as air conditioner or arctos portable ac video (simply click the next internet page) for short. An alternative method of cooling is a swamp cooler. Although it may seem primitive, a swamp cooler can be effective, and is almost always a lot of cooler to run than an air conditioner unit.
Swamp coolers were developed, not in swampy areas, but in the desert. Rick Goettl, in the first 20th century, mastered house cooling in the southwestern desert of Arizona. Although the company would later move to be a major Phoenix air cooling supplier, they began with swamp coolers. These worked well in the hot, air which is dry in such a way that they would never ever have worked in the midwest or Deep South.
Swamp coolers work by the principle of evaporation. When water evaporates it utilizes heat energy to transform state from liquid to gas. Much love water which is boiling calls for heat, evaporating require heat. This heat is drawn out of the surrounding air. A swamp cooler is a huge box with sponge like pads lining three sides and also the top. A huge fan forms the fourth side. The floor of the cooler is a trap pan for water, which is created in the roof of the pads. Drinking water runs down the wall surfaces, keeping the pads saturated. Air flows through the walls of the cooler, through the damp pads, and out through the fan, into the space. On a dry day, the foot bath in the pads evaporates quickly, keeping the pads and air quite frigid. On a humid day, the water in the pads doesn't evaporate well, and the end result is that the cooler only lowers the temperature somewhat, while humidifying the room.
Air conditioning works on an absolutely different scientific concept, that of Boyle's fuel law. Increasing the pressure of fuel for a chamber is going to raise the heat, if the volume of the chamber remains the same or perhaps decreases. Decreasing the stress will decrease the temperature. This's why a child's balloon seems cool immediately after it is deflated, as well as exactly why a bicycle pump becomes hot if the tire is inflated quickly.
An air conditioning unit uses a substance like Freon which has a boiling point near the surrounding temperature of a room. A compressor pressurizes Freon gas, increasing the temperature. The sweltering fuel then runs through a condenser, which is like a radiator, as well as allows heat to escape into the surrounding air (this part of the system is outside the building). As the pressurized gas cools, it condenses back to a liquid. Today, it's at pressure that is high, but room temperature. The liquid passes through an expansion valve, which reduces the stress, causing a cold combination of liquid as well as gas. This cold mixture runs through an evaporator, which is like a radiator, but working in reverse. As air that is warm away from the home blows with the cool coils, the liquid in the coils converts warming gasoline, thus the environment is cooled as well as returned to the kitchen via a duct. The bright Freon then comes back to the compressor, so the cycle starts over.
Along with cooling the environment in an area, an air conditioning unit also lowers the humidity. This's because as warm air away from the room runs past the chilly evaporator coils, moisture out of the air flow condenses on the coils, similar to water condenses on a cold glass on a hot day.
The Freon compressor requires a lot of power, aside from that to the strength needed to run the fans that blow air flow with the evaporator and condenser. This means that an air cooling unit is much more costly to run than a swamp cooler. But an air cooling unit can operate and cool a room regardless if the air is damp, while a swamp cooler relies on air that is dry to operate properly.