Evaporative Cooling System Diagram

As water evaporates it effectively consumes heat from the surrounding air it is the same principle by which an air fan cools you as it evaporates perspiration from your skin.

Evaporative cooling system diagram.

If a q tonnes of refrigeration is the cooling load in the cabin then the air required for the refrigeration purpose power. The cooling provided by water evaporation is the most natural cooling system. As the water that is in contact with hot air evaporates it absorbes the heat of the air and reduces its temperature. Highly efficient evaporative cooling systems can reduce energy use by 70 the actual savings will vary with the type of evaporative system and climate.

The process is indicated in the mollier diagram below. Compare to evaporative cooling some of the disadvantages of using this type of air cooling systems include a higher cost to operate more energy use routine cleaning and maintenance. 7 5 3 evaporative cooling system. Industrial and commercial evaporative cooling systems have several benefits.

These fog systems can be designed and operated to. Evaporative cooling uses the fact that water will absorb a relatively large amount of heat in order to evaporate. The most common way of accomplishing evaporative cooling in a greenhouse is with a fan and pad system figure 1. An evaporative cooler also swamp cooler swamp box desert cooler and wet air cooler is a device that cools air through the evaporation of water.

Evaporative cooling differs from typical air conditioning systems which use vapor compression or absorption refrigeration cycles. The evaporative cooling system is used to raise both power output and efficiency of gas turbines. The parts of an evaporative cooler are all designed to facilitate efficient evaporation of water and circulation of the cooled air. The direct evaporative cooling process in a mollier diagram air with dry bulb temperature 30 o c and relative moisture 60 state a is cooled down state b by evaporating water.

High pressure fog systems are also used to cool green houses. In the evaporative cooling mode the air is cooled by contacting the. The basis of any evaporative cooling system is the evapora tion of water into an airstream. The power output and efficiency rating of gas turbines are usually based on iso conditions inlet air temperature 288 k and 65 relative humidity.

The various processes are same as in the simple air cooling system except that the cooling process in the evaporator is shown by 4 4. These systems use only a fraction of the energy of typical compressor based cooling systems. Evaporative coolers often known as swamp coolers work by extremely simple physics. The t s diagram for simple air cycle evaporative cooling system is shown below.

In addition you ll find that it emits higher levels of carbon dioxide co 2.