Data center thermal environment analysis and evaluation using exergy loss index

Reviews the common evaluating indexes for data center thermal environment, and proposes exergy loss index(ELI) method to describe the air flow and heat transfer process in data center. Taking a typical data center model as an example, testifies the feasibility of this method by comparing with current common evaluating methods.ELI method can not only describe data center thermal environment, but also analyse various factors which decrease the cooling efficiency. Puts forward the improvement suggestions, which provids the reference for improving the energy use of data centers.