"INTRODUCTION According to ASHRAE's publication ""Datacom Equipment Power Trends and Cooling Applications""@ by 2010@ computer and communications rack heat loads are projected to reach 15 to 48 kW heat load per rack. Driving this trend is the fact that advances in technology are allowing more and more computing power to be placed into smaller and smaller packages. Other contributing factors include the trend of businesses to reduce capital costs by putting virtualized servers in smaller spaces@ and consolidation of multiple remote data centers into centralized mega data centers. This compaction increases power requirements thereby generating more heat."