Ventilation Effectiveness for Satisfactory Indoor Air Quality in Multi-unit Residential Buildings

As discussed in the previous section and in the following chapters, the ventilation of buildings is central to the management and control of airflows in buildings, which are also dependent on the performance of other building systems. [...] P a g e | 18 The Ventilation System is an air management system that balances the introduction and treatment of outdoor air in buildings to remove indoor air contaminants, with the indoor and outdoor air quality requirements and conditions, and the control of identified pollutants at the source. [...] This study intends to raise awareness on the importance of this topic, and increase the local efforts and collaborations between the local industry and the local academic institutions to conduct comprehensive field studies and strengthen the local capacity to better design, model, and measure the performance of ventilation systems and air quality in MURBs. [...] The right-hand side of Figure 5 shows that the differential pressures are higher at the base and at the top of the building, and decrease towards the middle of the building. [...] Figure 5 illustrates the importance of controlling the differential pressures at the base of the building, in particular those between the outdoors and the shafts, and the outdoors and the core.