Abstract
A sudden contamination of the outdoor air by some toxic gas can have several causes. To find out the protection afforded by sheltering indoors was the primary goal of the investigation. The object of the computational approach was a single family house with two floors. Three different models were utilized as computing tools: MOVECOMP to calculate the infiltration air flows, MULTIC to calculate the contaminant transport inside the building and TDYN to calculate the temperature decay of the building. The performance of the models was found to be sufficient for the investigation. The variation in the weather parameters was treated using the two-dimensional distribution of the outdoor air temperature and wind speed and a statistical approach. The results show the cumulative distribution functions of the relative doses inside the building for different tightness levels, exposure times and building locations. The influence of the status of the inner doors, the location of the occupants inside the building and the cutoff of the heating were studied as well. From the viewpoint of sheltering, the tightness of the building holds a key position. In a leafy building, depending on the exposure time, the doses are from two to fifteen times as much as
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Citation Formats
Siren, K.
A computational approach to the penetration of gaseous pollutants into buildings. Part 1: Single family house.
Finland: N. p.,
1992.
Web.
Siren, K.
A computational approach to the penetration of gaseous pollutants into buildings. Part 1: Single family house.
Finland.
Siren, K.
1992.
"A computational approach to the penetration of gaseous pollutants into buildings. Part 1: Single family house."
Finland.
@misc{etde_10130887,
title = {A computational approach to the penetration of gaseous pollutants into buildings. Part 1: Single family house}
author = {Siren, K}
abstractNote = {A sudden contamination of the outdoor air by some toxic gas can have several causes. To find out the protection afforded by sheltering indoors was the primary goal of the investigation. The object of the computational approach was a single family house with two floors. Three different models were utilized as computing tools: MOVECOMP to calculate the infiltration air flows, MULTIC to calculate the contaminant transport inside the building and TDYN to calculate the temperature decay of the building. The performance of the models was found to be sufficient for the investigation. The variation in the weather parameters was treated using the two-dimensional distribution of the outdoor air temperature and wind speed and a statistical approach. The results show the cumulative distribution functions of the relative doses inside the building for different tightness levels, exposure times and building locations. The influence of the status of the inner doors, the location of the occupants inside the building and the cutoff of the heating were studied as well. From the viewpoint of sheltering, the tightness of the building holds a key position. In a leafy building, depending on the exposure time, the doses are from two to fifteen times as much as in a tight building. By closing the inner doors and choosing the correct location inside the building, the occupant can decrease the dose in favourable conditions by 50 % compared with the mean value in the building. This does, however, require knowledge of the local wind direction. By cutting off the heating in the winter, the doses can be further reduced, but only in slight degree.}
place = {Finland}
year = {1992}
month = {Dec}
}
title = {A computational approach to the penetration of gaseous pollutants into buildings. Part 1: Single family house}
author = {Siren, K}
abstractNote = {A sudden contamination of the outdoor air by some toxic gas can have several causes. To find out the protection afforded by sheltering indoors was the primary goal of the investigation. The object of the computational approach was a single family house with two floors. Three different models were utilized as computing tools: MOVECOMP to calculate the infiltration air flows, MULTIC to calculate the contaminant transport inside the building and TDYN to calculate the temperature decay of the building. The performance of the models was found to be sufficient for the investigation. The variation in the weather parameters was treated using the two-dimensional distribution of the outdoor air temperature and wind speed and a statistical approach. The results show the cumulative distribution functions of the relative doses inside the building for different tightness levels, exposure times and building locations. The influence of the status of the inner doors, the location of the occupants inside the building and the cutoff of the heating were studied as well. From the viewpoint of sheltering, the tightness of the building holds a key position. In a leafy building, depending on the exposure time, the doses are from two to fifteen times as much as in a tight building. By closing the inner doors and choosing the correct location inside the building, the occupant can decrease the dose in favourable conditions by 50 % compared with the mean value in the building. This does, however, require knowledge of the local wind direction. By cutting off the heating in the winter, the doses can be further reduced, but only in slight degree.}
place = {Finland}
year = {1992}
month = {Dec}
}