Paper Title
Study of Weather Resistant Performance Louvers

Abstract
The main question arises in data centres is resistance to water penetration but at the same time opening area will be more. A louver is a ventilation product that allows air to pass through it while keeping out unwanted elements such as water, dirt, and debris. A number of fixed or operable blades mounted in a frame can provide this functionality. The basic considerations for selecting louvers are free area, water penetration and resistance to airflow (pressure loss). Drainable louvers are characterized by gutters incorporated at the front edge of each blade to prevent water droplets from cascading from blade-to-blade and becoming entrained in the intake air flow. Vertical gutters located in the jamb frames carry the water to the sill frame where it exits from the louver assembly between the sill frame and bottom blade. Drainable louvers generally outperform conventional architectural blade louvers and provide enhanced resistance to water penetration. The product isinstalled in Data Centre area. Due to this, by ‘A’ class Louver, at wind speed 45 km/h, by maintaining opening Area 50% (which is previously 25%), 0% water penetration is achieved. Hence in Areas like Data Centres where restriction of water but on the other hand, more opening area is needed, Louvers are more efficient. Keywords - Weather Resistant Louver, Data Centre, Fan Banks, Drainable Louver.