High efficiency electronic cooling fans

With increased attention to energy costs for Data Centers, the Industry is investigating how this energy is being consumed and designing methods for reducing Data Center power consumption. The typical data center can require up to two times the useful computing power for cooling. The biggest of these data centers contain 400,000 servers and consume 250 megawatts of power. It has been estimated that 20% of the total power supplied for a high end server is consumed by fans. This ldquonon value addedrdquo power consumption required for cooling has been the target for engineers attempting to reduce Data Center energy consumption and costs. This paper will deal with the optimization of the fundamental conversion of electric power to air flow and review significant opportunities for improvement in efficiency though optimization of the air mover design to the specific air performance requirements.