The Art of Dehumidification
Often people think that by keeping their homes hermetically sealed, they will stop pollution and dirt from coming into their homes. Well, this is fine and dandy, HOWEVER, a bigger problem is created…..HUMIDITY. Aside from discomfort, humidity brings MOLD and MILDEW which will spawn into many medical conditions. This is why DEHUMIDIFICATION is of the essence.
Air may be dehumidified three ways:
Cooling – condensation of vapor
ADsorption of water vapor
ABsorption of water vapor
Cooling – In a cooling system the humidity is reduced by cooling the air below dew point. A part of the moisture in the air is condensed and drained out.
ADsorption – In an adsorption system the humidity is reduced with an adsorbent material as silica gel or activated alumina. This process is where moisture is condensed and held on the surface of the material. The process can be reactivated by heat.
ABsorption – In an absorption system the humidity is reduced with an absorbent material such as a calcium chloride solution. Absorption involves a change in the physical or chemical structure of the material. This process cannot be reversed.
A Quick History of the Dehumidifier and Air Conditioning
South Floridians today owe a world of thanks to American Engineer, Willis Haviland. A Cornell grad, Haviland developed a dehumidifier in 1902 when he discovered that circulating air over cold pipes not only removed water from the air, but, cooled it as well. By doing so, Haviland became a key contributor to the invention of air conditioning. Think about it……if Haviland had not come around, Florida would be uninhabited. Who could survive a heat index of 110 in the middle of August without AC! Water Extraction Companies would be non-existent without dehumidifiers since they are the cornerstone of the process. Haviland eventually went on to found Carrier Corp which is still incorporated today with a major hub in South Florida.
