Influence of Local Airflow on the Pollutant Emission from Indoor Building Surfaces

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

24 Citationer (Scopus)

Resumé

This article reports the results of an investigation, based on fundamental fluid dynamics and mass transfer theory, carried out to obtain a general understanding of the mechanisms involved in the emissions from building materials in ventilated rooms. In addition, a generally applicable method for the prediction of surface emissions is proposed. The work focused on the emission of vapours and gases and no particulate emissions were considered. The methods used were numerical calculations by computational fluid dynamics (CFD) and full-scale laboratory experiments. It was found that the emissions are a strong function of air-change rate, local air velocity and local turbulence, as the mass transfer coefficient increases in proportion to these parameters. The findings further show that the mass transfer coefficient increases in proportion to the velocity when the emission is controlled by evaporation from the surface. With regard to diffusion-controlled emissions, the mass transfer coefficient is unaffected by the velocity.
OriginalsprogEngelsk
TidsskriftIndoor Air
Vol/bind11
Udgave nummer3
Sider (fra-til)162-170
Antal sider9
ISSN0905-6947
DOI
StatusUdgivet - 2001

Fingerprint

Hydrodynamics
Mass transfer
Air
Gases
Particulate emissions
Fluid dynamics
Computational fluid dynamics
Evaporation
Turbulence
Vapors
Experiments

Citer dette

@article{4a867d30809211db8b97000ea68e967b,
title = "Influence of Local Airflow on the Pollutant Emission from Indoor Building Surfaces",
abstract = "This article reports the results of an investigation, based on fundamental fluid dynamics and mass transfer theory, carried out to obtain a general understanding of the mechanisms involved in the emissions from building materials in ventilated rooms. In addition, a generally applicable method for the prediction of surface emissions is proposed. The work focused on the emission of vapours and gases and no particulate emissions were considered. The methods used were numerical calculations by computational fluid dynamics (CFD) and full-scale laboratory experiments. It was found that the emissions are a strong function of air-change rate, local air velocity and local turbulence, as the mass transfer coefficient increases in proportion to these parameters. The findings further show that the mass transfer coefficient increases in proportion to the velocity when the emission is controlled by evaporation from the surface. With regard to diffusion-controlled emissions, the mass transfer coefficient is unaffected by the velocity.",
keywords = "Local airflow, Pollutant Emission, CFD, Full-Scale Experiments, Evaporation Controlled, Diffusion Controlled",
author = "Claus Topp and Nielsen, {Peter Vilhelm} and Heiselberg, {Per Kvols}",
year = "2001",
doi = "10.1034/j.1600-0668.2001.011003162.x",
language = "English",
volume = "11",
pages = "162--170",
journal = "Indoor Air",
issn = "0905-6947",
publisher = "Wiley-Blackwell",
number = "3",

}

Influence of Local Airflow on the Pollutant Emission from Indoor Building Surfaces. / Topp, Claus; Nielsen, Peter Vilhelm; Heiselberg, Per Kvols.

I: Indoor Air, Bind 11, Nr. 3, 2001, s. 162-170.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Influence of Local Airflow on the Pollutant Emission from Indoor Building Surfaces

AU - Topp, Claus

AU - Nielsen, Peter Vilhelm

AU - Heiselberg, Per Kvols

PY - 2001

Y1 - 2001

N2 - This article reports the results of an investigation, based on fundamental fluid dynamics and mass transfer theory, carried out to obtain a general understanding of the mechanisms involved in the emissions from building materials in ventilated rooms. In addition, a generally applicable method for the prediction of surface emissions is proposed. The work focused on the emission of vapours and gases and no particulate emissions were considered. The methods used were numerical calculations by computational fluid dynamics (CFD) and full-scale laboratory experiments. It was found that the emissions are a strong function of air-change rate, local air velocity and local turbulence, as the mass transfer coefficient increases in proportion to these parameters. The findings further show that the mass transfer coefficient increases in proportion to the velocity when the emission is controlled by evaporation from the surface. With regard to diffusion-controlled emissions, the mass transfer coefficient is unaffected by the velocity.

AB - This article reports the results of an investigation, based on fundamental fluid dynamics and mass transfer theory, carried out to obtain a general understanding of the mechanisms involved in the emissions from building materials in ventilated rooms. In addition, a generally applicable method for the prediction of surface emissions is proposed. The work focused on the emission of vapours and gases and no particulate emissions were considered. The methods used were numerical calculations by computational fluid dynamics (CFD) and full-scale laboratory experiments. It was found that the emissions are a strong function of air-change rate, local air velocity and local turbulence, as the mass transfer coefficient increases in proportion to these parameters. The findings further show that the mass transfer coefficient increases in proportion to the velocity when the emission is controlled by evaporation from the surface. With regard to diffusion-controlled emissions, the mass transfer coefficient is unaffected by the velocity.

KW - Local airflow

KW - Pollutant Emission

KW - CFD

KW - Full-Scale Experiments

KW - Evaporation Controlled

KW - Diffusion Controlled

U2 - 10.1034/j.1600-0668.2001.011003162.x

DO - 10.1034/j.1600-0668.2001.011003162.x

M3 - Journal article

VL - 11

SP - 162

EP - 170

JO - Indoor Air

JF - Indoor Air

SN - 0905-6947

IS - 3

ER -