Thermal environment optimization of data rooms based on entransy loss

In view of the deficiency of the existing evaluation indexes, applies the entransy loss method based on thermodynamics principle to the evaluation of thermal environment in data rooms. Taking a typical data center room as an example, establishes three types of air distribution models, which are upper air supply by air duct, underfloor air distribution and front air supply and air  return at back of cabinets. By comparing the evaluation results of entransy loss method based on thermal principle with the simulation results, verifies the rationality of the method. Taking the underfloor air distribution as an example, evaluates the impact of the closed cold/hot channel optimization method on the thermal environment of the data rooms using the entransy loss method. Compared with the evaluation indexes, the entransy loss can not only effectively evaluate the air distribution mode of the data rooms, but also quantify the heat loss caused by the mixing of hot and cold air in the heat transfer process of the system, which can evaluate the thermal environment of the data rooms more comprehensively.