Thermal comfort and IEQ assessment of an under-floor air distribution system

In this article, an under-floor air distribution system is analyzed.  The inlet device is placed near a thermal manikin and several turbulence intensities are imposed. Sensitive parts of the body are exposed to the airflow. While global comfort index show no difference in comparison to classical air diffusion strategy, local evaluation of the convective heat flux reveals several particularities. The CFD study gives us not only temperature and velocity fields, but also flow path-lines around a virtual thermal manikin, allowing us to evaluate indoor environmental quality.