The evaporative cooling system is used to raise both power output and efficiency of gas turbines.
Evaporative cooling system diagram.
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.
The basis of any evaporative cooling system is the evapora tion of water into an airstream.
The t s diagram for simple air cycle evaporative cooling system is shown below.
7 5 3 evaporative cooling system.
The parts of an evaporative cooler are all designed to facilitate efficient evaporation of water and circulation of the cooled air.
As the water that is in contact with hot air evaporates it absorbes the heat of the air and reduces its temperature.
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.
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The cooling provided by water evaporation is the most natural cooling system.
These fog systems can be designed and operated to.
Evaporative coolers often known as swamp coolers work by extremely simple physics.
If a q tonnes of refrigeration is the cooling load in the cabin then the air required for the refrigeration purpose power.
The power output and efficiency rating of gas turbines are usually based on iso conditions inlet air temperature 288 k and 65 relative humidity.
Highly efficient evaporative cooling systems can reduce energy use by 70 the actual savings will vary with the type of evaporative system and climate.
Evaporative cooling uses the fact that water will absorb a relatively large amount of heat in order to evaporate.
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.
The process is indicated in the mollier diagram below.
These systems use only a fraction of the energy of typical compressor based cooling systems.
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.
High pressure fog systems are also used to cool green houses.
The most common way of accomplishing evaporative cooling in a greenhouse is with a fan and pad system figure 1.
In addition you ll find that it emits higher levels of carbon dioxide co 2.
Industrial and commercial evaporative cooling systems have several benefits.
Evaporative cooling differs from typical air conditioning systems which use vapor compression or absorption refrigeration cycles.
If the inlet air is hotter and drier than iso conditions the.
