AC HOT/COLD CORRIDORS

The system is based on the principle of complete separation of hot and cold airflows which leads to significant efficiency improvements. This is achieved by enclosing the roof section between opposing cabinets on the cold aisle with glass panels.



Both ends of the cold aisle are sealed off using sliding doors to contain the air. In addition all cabinets are fitted with side skirts and blanking panels between the equipment, in this way the only route for the air is through the equipment. The cabinets are now considered to be an extension of the floor void and the room is now the hot aisle. The advantages are quite clear - the temperature between the bottom and top of the rack is now quite constant. This enables the deployment of servers at any position in the rack, resulting in an even spread of temperature, which in turn allows for the increase of under floor air temperature giving significant savings on OPEX.



If the supply temperature is approximately 20 degrees Celcius the possibility of "FREE COOLING" can also be considered. In addition 75% of server failures occur in the top third of racks as the temperature is always a lot higher than the bottom of the rack.

With more efficient and controlled cooling in the rack the equipment is more reliable.