Winter sports hall operation for snow-covered sloping floors specifies incoming air temperature and humidity and proposes incoming air mix with outside air and cooled by crushed snow input.

摘要

The hall is ventilated according to these specifications, notably humidity of incoming air to amount to 4 g/kg dry air and temperature 1-3degreesC at the top of the floor above the snow crystal cover, possibly bringing air in at 2degreesC and humidity of 4.4 g/kg dry air. The air feed is a mixture of surrounding air and outside air and is cooled by spraying crushed ice in the air mix.