GALERY
Power usage effectiveness ( PUE ) is a measure of how efficiently a computer data center uses energy; specifically, how much energy is used by the computing equipment (in contrast to cooling and other overhead). PUE is the ratio of total amount of energy used by a computer data center facility .... 
In data center terminology an economizer is part of the data center cooling infrastructure. An air economizer can reduce data center power consumption by leveraging cooler outdoor air temperatures to cool the hardware and facility. ...
Data center thermal modeling using Computational Fluid Dynamics (CFD) is gaining popularity as a tool for analyzing the effectiveness of cooling within the racks and aisles. CFD provides companies with a detailed 3-D analysis of how cold air is moving through a data center, identifying potential “hot spots” where equipment is receiving too little airflow.
