Compensating for sink effects in emissions test chambers by mathematical modeling

Dunn, James E.; Tichenor, Bruce A.

doi:10.1016/0004-6981(88)90265-x

Cited by 85 publications

(65 citation statements)

References 3 publications

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“…The mass transfer model found by other researchers [18][19][20] provides a good fit to measured VOC concentrations. However, due to the difficulty estimating or measuring a large number of parameters, it is impossible to use this model for this study.…”

Section: Behavior Of Modelsupporting

confidence: 59%

Evaluation of Total Volatile Organic Compound Emissions from Adhesives Based on Chamber Tests

Guo

Murray

Wilkinson

2000

Journal of the Air & Waste Management Association

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In 1997, Homeswest in western Australia and Murdoch University developed a project to construct low-allergen houses (LAHs) in a newly developed suburb. Before the construction of LAHs, all potential volatile organic compound (VOC) emission materials used in LAHs are required to be measured to ensure that they are low total VOC (TVOC) emission materials. This program was developed based on this purpose.In recent times, the number of complaints about indoor air pollution caused by VOCs has increased. A number of surveys of indoor VOCs have indicated that many indoor materials contribute to indoor air pollution. Although some studies have been conducted on the characteristics of VOC emissions from adhesives, most of them were focused on IMPLICATIONS This paper evaluates the emissions of TVOCs from adhesives based on chamber tests. The conclusions obtained in this paper can be used to (1) classify adhesive products according to their emission potential; (2) expand an emissions inventory that can be used to predict indoor air quality; and (3) evaluate the contribution of the emissions of a given product to the overall indoor concentrations of VOCs. Therefore, the emission data obtained in this kind of research are important for estimating exposure to VOCs emitted in the indoor environment and especially for the design of methods to reduce exposure through selecting appropriate building and furnishing materials and household products.VOC emissions from floor adhesives. Few measurements of VOC emissions from adhesives used for wood, fabrics, and leather are available. Furthermore, most research on VOC emissions from adhesives has been done in countries with cool climates, where ventilation rates in the indoor environment are lower than those in Mediterranean climates, due to energy conservation. VOCs emitted from adhesives have not been sufficiently researched to prepare an emission inventory to predict indoor air quality and to determine both exposure levels for the Australian population and the most appropriate strategies to reduce exposure.An environmental test chamber with controlled temperature, relative humidity, and airflow rate was used to evaluate emissions of TVOCs from three adhesives used frequently in Australia. The quantity of TVOC emissions was measured by a gas chromatography/flame ionization detector. The primary VOCs emitted from each adhesive were detected by gas chromatography/mass spectrometry.The temporal change of TVOC concentrations emitted from each adhesive was tested. A double-exponential equation was then developed to evaluate the characteristics of TVOC emissions from these three adhesives. With this double-exponential model, the physical processes of TVOC emissions can be explained, and a variety of emission parameters can be calculated. These emission parameters could be used to estimate real indoor TVOC concentrations in Mediterranean climates.

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Section: Behavior Of Modelsupporting

confidence: 59%

Evaluation of Total Volatile Organic Compound Emissions from Adhesives Based on Chamber Tests

Guo

Murray

Wilkinson

2000

Journal of the Air & Waste Management Association

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“…Some focused on surface effects (Silberstein et aI., 1988;Dunn and Tichenor, 1988;Tichenor et al, 1991;Clausen et al, 1991;Chang and Guo, 1992), including an example where the boundary layer resistance between the bulk air and the source/sink was taken into account (Axley, 1991), while others considered internal diffusion (Dunn, 1987;Clausen et al, 1992;Dunn and Chen, 1992). Dunn (1987) emphasized the value of such models in de-coupling the source/sink behavior from the experimental apparatus, usually an environmental chamber, so that the results can be applied more widely.…”

mentioning

confidence: 99%

Modeling emissions of volatile organic compounds from new carpets

Little

Hodgson

Gadgil

1994

Atmospheric Environment

275

174

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“…Indoor air emissions result from complex transport processes including evaporation and surface effects [49,[50][51][52], desorption and absorption [28,[53][54][55][56], internal diffusion [57][58][59] or diffusion-convection [47,60,61].…”

Section: Physical Modelsmentioning

confidence: 99%

Development of Robust Indoor Air Quality Models for the Estimation of Volatile Organic Compound Concentrations in Buildings

Ellacott¹,

Reed

1999

Indoor Built Environ

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The increasing incidence of health problems associated with ‘tight buildings’ can be partly blamed on the emission of volatile organic compounds (VOCs) derived from human activity and the presence of a range of synthetic furnishings, office equipment and building materials. The development and nature of both empirical (statistical) and deterministic (physical) indoor air quality models to predict the concentration of VOCs in indoor air has been reviewed. The review identified a number of physical parameters including air exchange, sorption/desorption processes, source emission rates and source emission decay profiles as important considerations in the establishment of a robust indoor air quality model. Such a model enables the health and safety professional to make cost-effective and informed decisions to improve indoor air quality and reduce health risk by minimising worker’s exposure to contaminated air inside buildings.

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Compensating for sink effects in emissions test chambers by mathematical modeling

Cited by 85 publications

References 3 publications

Evaluation of Total Volatile Organic Compound Emissions from Adhesives Based on Chamber Tests

Evaluation of Total Volatile Organic Compound Emissions from Adhesives Based on Chamber Tests

Modeling emissions of volatile organic compounds from new carpets

Development of Robust Indoor Air Quality Models for the Estimation of Volatile Organic Compound Concentrations in Buildings

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