A - Human Necessities – 63 – C
Patent
A - Human Necessities
63
C
62/9
A63C 19/02 (2006.01) F25B 49/02 (2006.01) F25C 3/02 (2006.01)
Patent
CA 1057069
ABSTRACT OF THE DISCLOSURE Artificial ice surface plants contained within an enclosure, utilize a ceiling cold air duct system operatively connected to a refrigeration unit so that the entire air content of the building housing the ice surface is maintained at approximately 26°F to 28°F which is quite comfortable for normal winter activities such as curling, ice hockey or ice skating. The warmer air from the building is withdrawn, cooled and hence de-humidified, and then discharged back near the ceiling area so that any turbulence takes place well above the activity area and the cooler air gradually settles towards the ice surface. Heat ge- nerated by the refrigeration unit may be passed through a heat exchanger to heat other areas of the building or may be discharged externally. If the out- side ambient temperature drops below approximately 14°F, then outside air may be drawn into the system. All of these alternatives assist in conservation of energy and are automatic in function and are control- led by a single automatic thermostat control within the buildings.
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