I created a new simulation project called 'Pollutant Extraction from Parking Garage - Editorial Demo':
Pollutant Extraction from Parking Garage - Editorial Demo
More of my public projects can be found here.
I created a new simulation project called 'Pollutant Extraction from Parking Garage - Editorial Demo':
Pollutant Extraction from Parking Garage - Editorial Demo
More of my public projects can be found here.
CO is one of the most harmful pollutants due to its degree of toxicity and detrimental impact on human health. This gas is colourless and odourless but highly toxic. Therefore, CO poisoning is the most common type of fatal air poisoning. If mechanical or natural ventilation is not sufficient in the enclosed environments, exhaust gas concentrations are hazardous to humans and can even lead to death. Carbon Monoxide (CO) is fractionally lighter than air. It lingers at a cerain level and gradually rises toward the ceiling or roof space of a car park.
The exposure limits for CO are:
The jet fan ventilation system is the most widely used ventilation system for the purpose of carbon monoxide extraction in underground car parks. The aim of this study is to undertake computational fluid dynamic (CFD) modelling of a car park to simulate how jet fans can help in CO concentrations reduction without the need for a complex duct system.
This project evaluates ventilation performance in an underground car parking space and verifies whether jet fan ventilation system causes a reduction in CO concentration levels.
Therefore, two scenarios are simulated:
CFD simulations are performed to examine velocity and CO concentrations distribution for the two scenarios.
CO Concentration in PPM at 1.8 m height
[1] https://www.researchgate.net/profile/Charbel_Habchi/publication/281409304_ASHRAE_Leb-Car-Park-FDS-EBD14-Revised/links/55e5dcdc08aecb1a7ccd5e3a/ASHRAE-Leb-Car-Park-FDS-EBD14-Revised.pdf?origin=publication_detail
[2] CFD optimization of jet fan ventilation in a car park by fractional factorial designs and response surface methodology | Building Simulation
[3] https://www.sciencedirect.com/science/article/pii/S0379711212000318![chart|690x376]
Hi @vaibhav_s,
You got really nice results with this simulation.
I am following your simulation to create something similar for my disertation thesis and I have some unclarities, I’ll be really gratefull if you can help me figure them out .
First, how did you managed to get the CO concentration in PPM in the sections you posted ?? Is it a built in feature in SimScale cause I couldn’t find it.
Second, I saw that you made some calculations of how much CO (2.77E-08 kg/m3 s) is initially in the garage, I was wondering were is this value placed in the simulation ?
And third thing, how did you calculated the exhaust flow based on the initial CO concentration (2.77E-08 kg/m3 s) ???
Thank you !