Basements of buildings are generally used as
parking garages and vehicles located in there release harmful gases. It is generally not
possible to ventilate parking garages with natural ventilation methods. For this reason,
ventilation systems should be used to keep the concentration of harmful gases
below certain limits. One of these ventilation systems is jet fan system. It
can also be used for smoke control and exhaust of harmful gases in case of
fire. In this study, the jet fan system was designed for a parking garage and
its performance has been observed by Computational Fluid Dynamics (CFD). Carbon
monoxide concentration and air velocity parameters were investigated according
to the different car occupancy rates with the CFD analyses for daily
ventilation. In the
results, when the number of cars increased, the air velocities decreased in the
areas where the cars located and exhaust of the CO gas took longer time. In
fire analyses, the same parameters were analyzed according to the different jet
fan hanging heights. In the fire ventilation results, when the jet fan hanging
height was increased, distribution of the air velocity profiles changed and it
took longer time to exhaust the CO gas from the car park.
Basements of buildings are generally used as
parking garages and vehicles located in there release harmful gases. It is generally not
possible to ventilate parking garages with natural ventilation methods. For this reason,
ventilation systems should be used to keep the concentration of harmful gases
below certain limits. One of these ventilation systems is jet fan system. It
can also be used for smoke control and exhaust of harmful gases in case of
fire. In this study, the jet fan system was designed for a parking garage and
its performance has been observed by Computational Fluid Dynamics (CFD). Carbon
monoxide concentration and air velocity parameters were investigated according
to the different car occupancy rates with the CFD analyses for daily
ventilation. In the
results, when the number of cars increased, the air velocities decreased in the
areas where the cars located and exhaust of the CO gas took longer time. In
fire analyses, the same parameters were analyzed according to the different jet
fan hanging heights. In the fire ventilation results, when the jet fan hanging
height was increased, distribution of the air velocity profiles changed and it
took longer time to exhaust the CO gas from the car park.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | March 31, 2020 |
Published in Issue | Year 2020 Volume: 32 Issue: 1 |