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Today: July 31, 2010
How Evaporative Cooling Works
Evaporative Cooling is provide by Evaporative heat exchange which takes advantage of the principles of the latent heat of evaporation where tremendous heat is exchanged when water evaporates.
It makes use of the free latent energy in the atmosphere. Compared to air-conditioning which uses mechanical refrigeration, the operating cost of heat evaporative exchanging are 90% less than air conditioning.
Water is brought into the cooler from the mains water supply and is pumped up to the top of the unit using a circulation pump. The water is then dispersed over the Celdek pads using a water distribution system which allows the water to flow continually over the pad.
The pads become saturated, air is drawn through the pads and the water evaporates causing the air to cool. The cool air is then ducted round the building to provide cooling by means of an axial fan.
When correctly designed, the system can give an amazing 35kW of air cooling for every 1.5kW of energy consumed.
A working model is installed in the Energy Showroom, showing inlet and outlet temperature readings.
Ventilation systems can provide comfort cooling for most of the year. During prolonged periods of high temperatures they are unable to maintain internal temperatures below 25°C. It is at this point that evaporative cooling is brought in. Using Evaporative cooling as an integral part of a balanced ventilation system means that the temperature of a building can be controlled even on the very hottest days.
A lab exercise that demonstrates how evaporation of water lowers the temperature. Also, how surface area affects the rate of evaporation.
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See Also In Evaporative Water Cooling
Evaporative Cooling Applications: Food and DrinkFood and drink manufacturing routinely creates a hot environment which can be detrimental to comfort, product quality and equipment performance and reliability. One way to reverse this is with the installation of Evaporative Water Cooling.
Evaporative Cooling Applications: Modern OfficesMany modern offices are uncomfortable due to high occupancy, more equipment (computers etc) and improved building insulation. Evaporative Water Cooling can help improve working comfort and increase productivity.
Evaporative Cooling Applications: SchoolsMany educational facilities have problems with high temperatures causing student and staff discomfort. A typical example of this is IT rooms. A refrigeration based air conditioning system is costly to install and run. It also has a significant carbon impact.
Evaporative Cooling Applications: Warehouse CoolingWarehouses usually generate a high amount of hot air and without proper cooling and ventilation, become unpleasant environments to work in. Here is how Evaporative Water Cooling can help reduce heat and provide a cooled and more pleasant work atmosphere.
Evaporative Cooling Applications: Data CentresEcoCooling can now offer evaporative cooling systems for data centres, UPS rooms, IT rooms and server rooms. Conventional Computer Room Air Conditioners (CRAC’s) are high users of electricity. An EcoCooling evaporative cooling system can significantly decrease these costs by over 90% giving potential pay backs of under a year and creating massive carbon savings.
Evaporative Cooling PerformanceSubstantial benefits are shown between traditional methods of cooling and the evaporative method. Evaporative Water Cooling clearly outperforms in this critical area.
Have You Seen?Airius Destratification Ceiling FansThe AIRIUS Destratification ceiling fans are the most efficient DeStratification products available. Our cost effective products work alongside your existing HVAC systems. Easy to install, simple to maintain and economical to operate.
Evaporative Cooling Applications: Data CentresEcoCooling can now offer evaporative cooling systems for data centres, UPS rooms, IT rooms and server rooms. Conventional Computer Room Air Conditioners (CRAC’s) are high users of electricity. An EcoCooling evaporative cooling system can significantly decrease these costs by over 90% giving potential pay backs of under a year and creating massive carbon savings.
Daikin Altherma LinksFurther useful information about Daikin and the Altherma product that show the benefits of this amazing system and what it could save you.
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