Question

What is the operation principle of an evaporative cooler and what are the limitations of an evaportive cooler (4%)?

Answer 1

to This the air, Evaporative Cooler An evaporative cooler, sometimes refered as a swamp cooles, otelizes water - soaked pads to cool works because a the air procers fan pulls hot air into the unit, sending it through a series of pads that helps evaporate the liquid into a gas which then blows out cooler than it was when it entered the unit. while air conditiones draw moisture out of swamp coolers cool with the opposite effect by adding to the air ist flows out. The fan also continuously circulates an, creating a slight breeze, which will help make your body feel cooler. M humidity Heat insulation cool hamid air. Vibration absorba Water distribution Ail duet to home, lines { Hot Day Outdoor Air -Blower Blower motor Hot oly Outdoor Air Wood wool evaporative pads. Recuculating Water pamp Bull float value screen to Tapwater. Operation pump that delivers means in Duect Evaporaline Air Cooling machines, the heat exchange process is enabled water ga pads and a motor driven fan that forces hot outside air through those media panels. These components combine to accelerate the natural heat exchange process. water to cooling

Date : q changing During the proces, some the sensible heat from the cine is changed into talent into latent heat when water in the Evaporative All Coolee is changed into water vapour. process sensible heat of the into latent heat causes the hot an to become colder since some of its heat has. been used to the al temperature falls. The old an is then pumped into the building and is eventially exhausted from the building. It is never Limitations Most evaporative codes are unable to lower the air temperatue as much as refrigerated an condi High dewpoint conditions decrease the cooling capability of the evaporative cooles. No dehermidification. conditioning can. o water rapon is a major part of our atmospheric circulati- on and precipitation mechanism. Cheater as we know it com exist in all the three states matter and when it is in gascous state it is called weiter Normee amally the body cools itse ibey by opening pores on the skin and relating water and salts As the water evaporates, it transfers the body's heat to the air. Because water has a high latent heat, which is the heat required to change liquid water to vapor, this process usually carries away enough heat to do a good joo of cooling the body.