A study on the performance of personalized ventilation coupled with displacement ventilation

Abstract

This paper presents a study on the performance of personalized ventilation (PV) with the displacement ventilation (DV) system in a mock-up office space. It is an advantage to leverage on the benefits of personalized and displacement ventilations to bring better air quality to the breathing zone with personalized control and improved thermal comfort respectively. A series of experiments were carried out to determine the performance of two types of PV air terminal devices (ATDs), Round Movable Panel (RMP) and a pair of desktop PV ATDs (DATDs), in terms of pollutant transportation characteristics and thermal comfort of the breathing thermal manikin in a room served by a DV system. It was found that the performance of the two PV ATDs is different in terms of inhaled air quality and thermal comfort. In addition, CFD simulations were performed to have an in-depth understanding on the effect of PV air temperature on the performance of the PV-DV coupled system.