Monday, 16 March 2015

Heating and Air Conditioning FIRE & ICE - History Documentary Films

Air conditioning (often described as A/C, aircon or ac) is the process of changing the properties of air (mainly temperature level and moisture) to more comfy problems, generally with the aim of dispersing the trained air to an occupied area to improve thermal convenience and indoor air quality.
Alike use, an air conditioning system is a tool that reduces the air temperature level. The cooling is generally achieved through a refrigeration cycle, yet often evaporation or free cooling is utilized. Cooling systems could also be made based on desiccants.

In one of the most general sense, air conditioning can describe any type of kind of modern technology that customizes the disorder of air (home heating, air conditioning, (de-)humidification, air, cleaning, or air flow motion). In construction, such a complete system of air flow, heating, and air conditioning is referred to as HVAC (as opposed to Air Conditioning).

A heat pump is an air conditioner in which the refrigeration pattern could be turned around, producing home heating instead of cooling down in the interior setting. Some home owners elect to have a heat pump system installed as a function of a main air conditioner. The outside condenser system additionally switches parts to serve as the evaporator, and discharges cool air (chillier than the ambient outside air).
Air-source heat pumps are much more popular in milder winter environments where the temperature is often in the variety of 40-- 55 ° F (4-- 13 ° C), considering that heat pumps end up being inept in more extreme cold.

The very first a/c unit and refrigerators used flammable or hazardous gases, such as ammonia, methyl chloride, or gas, that might result in deadly crashes when they leaked. Thomas Midgley, Jr. produced the first non-flammable, non-toxic chlorofluorocarbon gas, Freon, in 1928.

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