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Sökning: L773:9781627482721

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  • Glader, Annika, et al. (författare)
  • Volatile organic compounds in building structures and indoor air
  • 2011
  • Ingår i: 12th International Conference on Indoor Air Quality and Climate 2011. - : International Society of Indoor Air Quality and Climate. - 9781627482721 ; , s. 1866-1871
  • Konferensbidrag (refereegranskat)abstract
    • The aims of this study were to find important emissions patterns for different building structures and whether the same compounds also could be found in room air. VOCs were sampled both within different building structures and from air in the adjacent rooms. The emission profiles were compared using multivariate data analysis techniques and influential and significant chemical compounds were identified. Patterns typical for tar in concrete structures could be identified but the same pattern could not be seen in room air. When comparing wooden structures, most of the influential compounds found were regarded as particle board emissions. This pattern could also be seen in room air. The presence of the same chemical compounds in both building structures and room air could be partly from the structure but, because they were common indoor chemicals, they also have other sources that affect the indoor air.
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  • Liu, Wei, 1987-, et al. (författare)
  • Simplifying the geometry of an airliner cabin for CFD simulations
  • 2011
  • Ingår i: 12th International Conference on Indoor Air Quality and Climate 2011. - 9781627482721 ; , s. 198-203
  • Konferensbidrag (refereegranskat)abstract
    • To study air distribution in commercial aircraft cabins so as to analyze their indoor air quality and thermal comfort, Computational Fluid Dynamics (CFD) has been frequently used. This study obtained a detailed geometric model by a laser tracking system with reverse engineering for the first-class section of an MD-82 aircraft cabin. By performing CFD simulations for the geometric model with different simplifications and by comparing the numerical results, the differences caused by the simplifications could be estimated. Our numerical simulations used the RNG k-ε model to solve the air distributions. This study concluded that some cabin geometries, such as the windows and seats, can be greatly simplified. Simplification could significantly reduce the grid number that makes the simulations faster.
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  • Resultat 1-6 av 6

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