Indoor air distribution simulation of Perforated Ceiling Air Supply in summer

Abstract

In this paper，the Airpak is used to modeling and numerical calculation traditional jet air supply and three conditions of perforated ceiling air supply，by contrast with the indoor temperature profile, velocity profile and PMV-PPD distribution,comprehensive analysis of indoor air distribution and thermal comfort.The results showed that：Compared with traditional jet air supply，perforated ceiling air supply with low speed and balanced ventilation might alleviate blowing sensation to indoor personnel，has a significant effect on the improvement of indoor air distribution and thermal comfort;Furthermore,The outlets of perforated ceiling air supply situate underpart of the room，cold air sent directly to the personnel working area，that can reduce  supply air rate and guaranteeing the  thermal comfort also， reduce the energy consumption of the air-conditioning system，has certain potential for energy conservation and emission reduction.