An innovative fresh air supply method for decoupled ventilation strategy

Abstract

An innovative approach by utilizing high velocity circular air jet which is located at the center of a normal air diffuser is introduced. Less fresh air is polluted by recirculated air when compared with mixing ventilation strategy. Room layouts and visual effects will not be affected deeply when compared with personalized ventilation strategy. A computational fluid dynamics (CFD) tool is used to simulate corresponding indoor parameters to verify that it can both supply fresh air into occupied zone effectively and avoid draught rating. Some experiments are conducted in a small chamber to validate the effectiveness of the simulation model.