Modeling and predicting of pollutant transfer in multizone buildings coupled with ventilation networks.

A literature review shows that the actual trends to prediction of air flow in multizone buildings are not only due to economical reasons but mainly to indoor air quality, acoustical and thermal comfort improvements. During the last decade, almost fifty models have been developed in eight countries [1]-[4]. Except some models the analysis of interaction between HVAC systems and building infiltration is seldom studied [5]. In this paper our first objective is the study of a building coupled with HVAC systems, in order to find out some complex phenomena resulting from coupling the building with its ventilation network. Our second objective is to qualify the ventilation efficiencyof a multizone building coupled with a ventilation network by an air quality index, and to provide guidance to occupations on ways to reduce their exposure to pollutants.