Do Heat Pumps Eliminate Humidity? |
Posted: February 25, 2014 |
What do you actually prefer when you think about cooling a hot building or vice-versa? Generally words like 'air conditioners' and 'window fans' are amongst the first one to come to your mind. For the former one you need to have your pocket full and for the latter one, it may be because of no other alternatives available to you! If you put a little stress on the thinking process, you will come out with a much better option or you can say a smart alternative- a heat pump. Heat pump, as we all know that is 'a device that transfers or move heat from one place/ location to another particularly from a colder area to a hotter area by the use of mechanical energy same as the refrigerators. If think technically, a heat pump can be used for both heating and cooling purposes. How does it work? In simple layman's language, heat pumps move heat from one place to another by using small amount of energy. They basically pull heat out of the air, surrounding/ atmosphere or ground to heat a home or office or any building compound but they can also be reversed to cool a building. The principle working is almost the same as an air conditioner. They both operate in a very similar manner. Any heat pump consists of a closed bound circuit through which a fluid flows- a special refrigerant fluid that takes on either states, liquid or gaseous according to the temperature and pressure conditions. These heat pumps generally consist of a generator, compressor, condenser, absorber, evaporator and series of restrictors (as and when applicable). The evaporator and condenser which further consist of heat exchangers which are nothing but special tubes placed in such a way that it stays in contact with service fluids (water or air) in which the refrigerant will flow and transfers heat to the condenser and takes it away from the evaporator. Role in humidity removal Heat pumps indeed eliminate humidity from the air inside the house and in the process transfer the liquid condensate outside the house which is visible as the water drip in the case of an air conditioner placed outside the house. It removes heat as well using the same working principle as the air conditioner. This happens because of the presence of the air handler and the evaporator coil in the indoor portion of the heat pump. The air handler blows air across the evaporator coil which on the other end has cold refrigerant flowing through it and only because of the heat's usual tendency to travel from hot materials to the colder ones in order to achieve thermal equilibrium; heat from your home's air, is thus transferred to the refrigerant. The refrigerant then flows to the portion outside of the heat pump that includes a condenser coil and a compressor. Here, the refrigerant is being compressed until the amount of temperature enough for the heat to be transferred to the outdoor air which will blow across the condenser coil. The cycle will start again once the refrigerant is allowed to expand resulting in returning to its original temperature. Moisture is actually eliminated during the cooling cycle because of the fact that cold air can comparatively hold less water vapour causing condensation to form on the evaporator coil and then the water can be drained out. Author Bio The author of this article is associated with Global Energy Systems and write various articles related to Heat Pumps UK and its benefits. For More Informations Visit Our Official Site :-http://www.globalenergysystems.co.uk
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