Hi there,
May I ask how WUFI determines the indoor and outdoor pressure?
Cheers
Indoor and outdoor pressure
Re: Indoor and outdoor pressure
Hi WEI LI,
if the pressure is included in the weather file, WUFI takes it from the file and assumes that this pressure equally applies outdoors, indoors and within the construction. If the pressure is not included in the weather file but the height of the location above sea level is known, WUFI assumes that the pressure is constant all the time and estimates it from the given height using an altimetric formula. If the height is not known either, WUFI uses a constant pressure of 1013.00 hPa.
For details, please refer to the help file topic "Reference | Climate Data | Pressure".
During the simulation, WUFI assumes that the pressure determined as discussed above applies everywhere, both within the construction and in the surroundings on both sides. If you use the "Air infiltration model" to control a moisture source you placed into the construction, the overpressure of the indoor air with respect to the outdoor air must be entered as one of the parameters. This parameter is only used for the infiltration model and is not reflected in WUFI's assumptions about the indoor and outdoor air pressure.
Kind regards,
Thomas
if the pressure is included in the weather file, WUFI takes it from the file and assumes that this pressure equally applies outdoors, indoors and within the construction. If the pressure is not included in the weather file but the height of the location above sea level is known, WUFI assumes that the pressure is constant all the time and estimates it from the given height using an altimetric formula. If the height is not known either, WUFI uses a constant pressure of 1013.00 hPa.
For details, please refer to the help file topic "Reference | Climate Data | Pressure".
During the simulation, WUFI assumes that the pressure determined as discussed above applies everywhere, both within the construction and in the surroundings on both sides. If you use the "Air infiltration model" to control a moisture source you placed into the construction, the overpressure of the indoor air with respect to the outdoor air must be entered as one of the parameters. This parameter is only used for the infiltration model and is not reflected in WUFI's assumptions about the indoor and outdoor air pressure.
Kind regards,
Thomas