INVESTIGATION ON EFFECT OF EXHAUST VENTS LOCATION ON REDUCTION OF POLLUTION IN ENCLOSED CAR PARKS
ARTICLE INFORMATION ABSTRACT Original Research Paper Received 14 February 2016 Accepted 18 April 2016 Available Online 07 May 2016 The correct placement of supply air inlets and pollution extraction outlets plays an important role in increasing indoor air quality and reducing the amount of pollution in enclosed car parks. In this paper the effect of exhaust locations, exhaust height and parking dimensions on indoor air quality of car park is investigated with numerical simulation. For this purpose conservation equations are solved with openFoam. For validation, air flow and pollution are simulated in a simple car park and compared with experimental results. In the next section, the effect of exhaust vent locations on increasing indoor air quality is investigated and compared with other solutions. The result of numerical simulation indicates that, if inlets and exhausts are located in end sides of car park and if exhaust vent locations are in the optimized height, the indoor air quality in the car park is increased. In this paper, the graph of CO concentration in different heights is explained and by using it, the optimum range for exhaust vent locations is proposed. Moreover, the standard criteria for using jet fans is expressed and the results showed that, for ventilation of car parks with length more than criterion, jet fans should be used.