Evaporative Cooling Performance

Savings of between 10 and 15% are possible when Evaporative Water Cooling is employed instead of traditional air cooling methods.

The performance of an EcoCooler is dependent upon the temperature of the air and its relative humidity. Higher temperatures give greater cooling. Low relative humidity gives greater cooling

In the UK during a typical hot period the ambient temperature approaches 30°C. This coincides with a Relative Humidity of under 50%. As the air passes over the pads it will typically cool down to about 22°C. There is less cooling in the night as the temperatures reduce and the humidity rises.

Supply Air Temperature Achieved By EcoCooling Coolers

Amb. Relative Humidity Temp 20% 30% 40% 50% 60% 70% 80% 20°C 12.0 13.0 14.5 15.5 16.5 17.5 18.5 25°C 16.0 17.0 18.5 20.0 21.0 22.0 23.0 30°C 19.5 21.0 22.5 24.0 25.0 26.5 28.0 35°C 23.0 25.0 26.5 28.5 30.0 31.5 32.5

 

Running Costs – Annual	EVAPORATIVE COOLING	AIR CONDITIONING	SAVING
COP/EER	66.4	3.4
Electricity KWhr	1515	14770	13255
Electricity Cost	£121	£1,182	£1,060
Water Usage cuM	45.5	0.0	-45.5
Water Cost	£54.65	£0.00	-£54.65
Total Cost	£176	£1,182	£1,006
	15%	100%	85%
Running Costs – 1824 Hours	EVAPORATIVE COOLING	AIR CONDITIONING	SAVING
Water use per hour L	25.0		-25
Cost per hour	£0.03		-£0.03
Electricity use per hour kWh	0.8	8.1
Cost per hour	£0.07	£0.65
Total cost per hour	£0.10	£0.65	£0.55
	EVAPORATIVE COOLING	AIR CONDITIONING	SAVING
KG CARBON USAGE	178Kg	1733Kg	1555Kg