HVAC & REFRIGERATION SHOW PREVIEW
Evaporative cooling
a cost effective alternative
Sarah Higgs, UK & Ireland sales area manager of Seeley International takes a look at evaporative cooling.
E
vaporative cooling is fast becoming the most effi cient option when cooling large areas, especially industrial and commercial spaces. Air conditioning is not such a viable option, because in warehouses or industrial plants, the capital and running costs would be extremely prohibitive for end-users. Most industries with high heat loads, such as printing, ceramics, glass, rubber or electronics, have no cooling system installed, and this impacts on the workers’ morale and productivity, as well as on their health. In cases where they have traditional cooling systems installed, they rely on recirculating the air in the indoor space, which can be full of fumes and germs.
Moreover, premises such as warehouses or big storage rooms, especially when dealing with food and pharmaceutical products, have specifi c temperature requirements.
20 December 2017
In all these examples, Direct Evaporative Cooling could be the right solution. They do not use any sort of chemical refrigerants to cool the air, just a water pump to supply water to the wetted media where evaporation occurs and electrical power for the fan that then pushes the air inside the building.
Many companies in the UK have already given trust to Evaporative Cooling. Indeed, these coolers have been installed in printing facilities, electronic manufacturing industries, automotive assembly lines and showrooms, ceramics, food industries, and warehouses.
The beauty of evaporative cooling is simplicity. Based on the simple principles of evaporation, hot outside air is pumped through water-soaked pads. As the air blows through the pads, the water is evaporated and the heat in the air is absorbed, which lowers the air temperature. A
fan then pushes the cool air through a ducting system, which then lets the cool air inside the whole building.
The only power-consuming components of a direct evaporative cooler are the fan and a small water pump. Evaporative air cooling uses up to 87% less energy than conventional air conditioning; it brings in 100% fresh outside air and utilises water for cooling instead of synthetic chemical refrigerants (CFCs, HFCs and HCFCs). There are no CFC pollutant emissions from evaporative air conditioning and water consumption is moderate.
That all adds up to very responsible environmental and energy saving characteristics. Evaporative coolers use far less electricity compared to refrigerated systems, and less fossil fuels such as coal and natural gas are therefore consumed in the production of electricity.
www.acr-news.com
Seeley International Stand A30
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