'Laundry equipment is
energy intensive. The combination of dry cleaning and steam heated ironing processes lead
to temperatures over 30°C in the working areas'
A total of 6 down discharge
units were installed. A combination of plenum chambers and ducts were used to provide
general coverage or spot cooling.
Extraction is provided through
existing roof louvers plus some extract fans. Extractors are normally positioned at the
highest possible level to remove the warmest air rising from the equipment. Extractors are
placed a minimum of 6m from the coolers to prevent cross flow of hot air or any
contaminants.
Laundries supplying hospitals are required to
perform a risk assessment in implement controls to prevent microbiological cross
contamination between dirty and clean laundry. This risk assessment is based on HACCP
– Hazard Analysis and Critical Control Point.
A typical outcome of performing a HACCP
analysis in a traditional laundry is the physical segregation of the two areas of the
laundry with additional walls and the requirement to keep external doors closed.
A direct result of this is the deterioration
in working conditions for the operators as the natural ventilation is removed.
A hot day in the UK is 25°C/50% Relative
Humidity. In these conditions an EcoCooler would reduce the air by 7°C. At a nominal flow
rate of 14,000m 3 /hr an evaporative cooler would use 60L/hr of water and would produce a
cooling effect equivalent to 32KW from 1.5KW of electricity consumption
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