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Indoor and Built Environment
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Investigating Indoor Air Quality and Thermal Comfort Using a Numerical Thermal Manikin

N. P. Gao

Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China, 02902469r{at}polyu.edu.hk

H. Zhang

Center for Environmental Design Research, University of California, Berkeley, CA 94720-1839, USA

J. L. Niu

Department of Building Services Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China

In this paper, we investigated the pollutant exposure reduction and thermal comfort that can be achieved with personalised ventilation (PV) design when a PV system is combined with two types of background air conditioning systems. For the investigation of inhaled air quality, pollutants emitted from building materials are the targeted pollutants; and for the investigation of thermal comfort, local discomfort associated with nonuniform thermal environment is focused upon. These investigations were performed by combining CFD simulation of the 3D air flow and a multi-nodal humanbody thermo-regulation model. The results reveal some new characteristics of the three typical air distribution designs, i.e. mixed ventilation, displacement ventilation and PV, and provide insight into the possible optimisation of system combinations.

Key Words: Personalised ventilation • Indoor air quality • Thermal comfort • Numerical thermal manikin (NTM)

Indoor and Built Environment, Vol. 16, No. 1, 7-17 (2007)
DOI: 10.1177/1420326X06074667
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