Basically when one hears about air conditioning, it always boils down to being all about cooling down a certain room temperature, making it cold for everyone inside that certain room. Technically, room air conditioning is basically all about controlling and manipulating the room temperature by all means that would then consist of ventilating, heating, and cooling. If we talk construction, we would call it as HVAC.
The first air conditioning system was initially used in a specific stock exchange building and was used in the early 1900s. After that, the very first electrically-run air conditioning unit was then made, installed, and used at a certain printing plant in the late 1900s. The air conditioning unit was technically used for not only cooling the air but controlling the humidity as well.
Manufacturing facilities back then had a difficulty with regards to becoming conducive for working and having productive workers due to the intense heat and humidity in their manufacturing sites, which was why these air conditioning units were primarily used by them to increase their productivity as a whole. It was only in the late 1950s when private civilians started using air conditioning units in their homes and cars as well so as to become more convenient and comfortable.
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A refrigerant, which is found inside an air conditioning unit, is basically responsible for the manipulation of the room temperature, making the air we breathe in cooler and fresher. Some harmful substances found in the refrigerants of early air conditioning units were used to manipulate the temperature in the room to make it cooler, and these substances are namely, methyl chloride and ammonia. They were then eventually replaced by another chemical which was less harmful, called the freon.
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Human being can basically trust the fact that freon does not have the ability to harm them in any way possible. Moreover, freon is and can be harmful to the environment. Apparently, if freon is spread out to the environment, it releases as well this chlorofluorocarbon gas that can be very harmful and can cause the thinning of the ozone layer, making the earth’s surface hotter and hotter as it thins down. Apparently, a variety of air conditioning units nowadays still use the same type of gas to control the temperature causing heat and humidity in the air. It has been said and believed that environmentalists and nature lovers alike will have to wait until a certain time that these gases will no longer be used and replaced with another more nature-friendly ones.
There are a number of refrigeration cycles that an air conditioning unit will have to go through to manipulate the temperature of the air. The first type of refrigeration process is through the use of a heat pump that is responsible for shooing out hot air that causes heat and humidity, letting the compressor in the air conditioning unit blow in cooler air to lessen the hotness in the room. The second type of refrigeration process just basically involves the pumping of a refrigerant.