2006•Fluid MachineryRequires access

Numerical Analysis of Indoor Air Temperature and Quality on Hybrid Ventilation

XU Zi-bin

Abstract

Based on K-e turbulence model,two ventilation patterns are discussed for researching hybrid ventilation models.The indoor 3D air temperature fields and the pollutant CO_2 concentration distribution are studied by CFD simulation in a room where pollutant source and centralized heat source are laid out.It is obtained the influence of ventilation patterns and the velocities of inlet on the air temperature distribution and CO_2 concentration distribution.The ventilation models of better indoor air quality,better thermal comfort and ventilation efficiency are obtained by contrasting temperature effectiveness and contaminant removal effectiveness.

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Key concepts: Ventilation (architecture), Indoor air quality, Inlet, Environmental science, Thermal comfort, Pollutant, Natural ventilation, Computational fluid dynamics