Abstract
In cold regions, air intake louvers are installed on buildings so as to deflect foreign matter like ice and snow particles and prevent them from entering the buildings, while allowing air to pass. In this research work a CFD based parametric numerical study has been carried out to simulate the rate and shape of atmospheric ice accretion on air intake louvers and to analyse the effects of various geometric parameters of louvers such as: placement angle, shape and size on the resultant ice accretion. It was concluded that ice mainly accretes at the front and top sides of the louver surface. It was also found that the rate of ice accretion increase in louver angle and the spacing between the louver slats.
Highlights
Louvers are a system of horizontal or vertical slats that are angled in such a manner so as to admit light and air, but to simultaneously keep out rain, direct sunshine and noise
Not much work has been reported on the rate and shape of ice accretion on air intake louvers installed on buildings in cold regions
As the air speed between louver slats increases, the dynamics pressure in the region increases with a drop in the static pressure
Summary
Louvers are a system of horizontal or vertical slats that are angled in such a manner so as to admit light and air, but to simultaneously keep out rain, direct sunshine and noise. These ice and snow particles accrete on the louver surface and cause a hinderence for the air flow and lead to a possible Atmospheric ice accretion on louvers occurs when freezing rain drops, snow particles or super cooled water droplets come into contact with their exposed surface [9].
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