Abstract
The airtightness of buildings is continuing to grow and impact the indoor environment. Its aim is to conserve energy, but this may influence the indoor air quality and increase contaminant accumulation by limiting the amount of fresh air that infiltrates the building. The goal of this study was to quantify how the contaminants from a faulty gas furnace in a household could impact the occupants. The gas furnace was located in an attached garage and leaked carbon monoxide (CO). Multizone and CFD simulations were caried out to determine if an air terminal device (ATD) with a changing geometry could improve the air quality. The goal of the ATD was to maintain a steady air throw in the garage, while the air flow in the ventilation system would change. A steady air throw should help to remove the carbon monoxide generated from the furnace and prevent infiltration into the household. The results show that with the use of the new ATD, it was possible to maintain a steady air throw and the infiltration of CO was lowered.
Highlights
Order to Decrease Carbon MonoxideThe growing airtightness of buildings is one of the main contributors of contaminant accumulation and migration within structures and it can pose a threat to the occupants’wellbeing [1,2]
It lowers almost 100the ppm when using of theair new air terminal device (ATD), proving that it can program and the CFD0 application were used
The aim of the study was to evaluate the effectiveness of an air terminal device with a changing geometry when concerning the improvement of air quality
Summary
Order to Decrease Carbon MonoxideThe growing airtightness of buildings is one of the main contributors of contaminant accumulation and migration within structures and it can pose a threat to the occupants’wellbeing [1,2]. In residential households in Poland, it is popular for the garage to be attached to the house structure for the comfort of use. Such an attached garage can contribute significantly to the indoor environment [5,6,7,8,9,10,11,12,13]. In many homes the primary heating source is located in the garage If such a source, for example, a gas furnace, was to malfunction and the fume exhaust would be blocked, there is a risk of CO (carbon monoxide) poisoning. Its high mortality is associated with impaired functioning of the red blood cells, affecting their ability to transport oxygen to the tissues in the body [16,17,18]
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