Performance test for evaluating the reduction of VOCs in rooms and evaluating the lifetime of sorptive building materials

Seo, Janghoo; Kato, Shinsuke; Ataka, Yuji; Chino, Satoko

doi:10.1016/j.buildenv.2008.02.013

Cited by 57 publications

(35 citation statements)

References 9 publications

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“…The mass transfer coefficient could be held constant by controlling the average wind velocity over the test material using the fan coupled to the chamber [4].…”

Section: Experimental Methodsmentioning

confidence: 99%

Influence of Environmental Factors on Performance of Sorptive Building Materials

Seo

Kato

Ataka

et al. 2010

Indoor and Built Environment

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Recently, sorptive building materials have been used to improve indoor air quality in Japan. By making use of sorptive building materials, the concentration of volatile organic compounds (VOCs) within rooms can be reduced without the need to install any special equipment. In this paper, the effect of sorptive building materials with respect to reducing toluene concentrations in the air of small test chambers has been assessed using sorption flux. We have also examined how environmental parameters influence concentration reduction performance. The effectiveness of activated carbon at reducing toluene concentrations when used as a sorptive building material depend considerably on the air exchange rate of the chamber, the load factor of the sorptive materials and the mass transfer coefficient. In order to evaluate and compare the sorptive performance of various building materials, it is necessary to conduct tests under identical parameter conditions. The experimental results and computational fluid dynamics analysis show that sorptive building materials are a fairly effective agent for reducing indoor VOC concentrations, and that this effect can be expected to be replicated during practical use.

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“…The mass transfer coefficient could be held constant by controlling the average wind velocity over the test material using the fan coupled to the chamber [4].…”

Section: Experimental Methodsmentioning

confidence: 99%

Influence of Environmental Factors on Performance of Sorptive Building Materials

Seo

Kato

Ataka

et al. 2010

Indoor and Built Environment

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“…The transportation of water (vapor) is expressed and analyzed by Eq (1). The water (vapor) diffusion coefficient D a in the air calculated from Eq (2) to (4) is 2.30 × 10 À5 m 2 /s [11][12][13]:…”

Section: Measurement Of Mass Transfer Coefficientmentioning

confidence: 99%

“…Indoor convective heat transfer coefficients are generally 3$6 W m 2 /K. This value of indoor convective heat transfer coefficient is converted to a water vapor mass transfer coefficient of 9$18 m/h [3,4]. The aforementioned small chambers maintain a uniform mass transfer coefficient for water vapor diffusion on the surface of tested building materials at approximately 2-3 m/h, which is considerably below the mass transfer coefficient of 9-18 m/h recommended in the Japanese industrial standards (JIS) A 1901.…”

Section: Introductionmentioning

confidence: 99%

Control of emission rates of chemical compounds emitted by controlling their mass transfer coefficients on the surface of the tested building material

Seo

Lee

Kim

et al. 2013

Journal of Adhesion Science and Technology

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The air change rate in the chamber, the loading factor of the materials, and the mass transfer coefficient are very important factors in the measurement of chemical compounds, because they have a decisive effect on emission rates of chemical compounds emitted from materials. Small 20-liter chambers, such as the advanced pollution and air quality chamber, are generally used in Korea and Japan for measuring the amount of released chemicals. In this study, chemical compounds released from building materials and adhesives were measured using a chamber proposed by the authors to control the mass transfer coefficient on the surface of the tested building material and we examined the distribution of chemical compounds concentrations in the chamber by means of computational fluid dynamics to confirm test reliability. The chamber was controlled and maintained at 28°C, a relative humidity of 50%, a mass transfer coefficient of 14 m/h with an air change rate of 0.50 h À1 , and formaldehyde and total volatile organic compounds were emitted from the flooring material and adhesive. As the mass transfer coefficient on the surface of the tested building material increased, the emission rates of chemical compounds measured using the proposed chamber increased. The mass transfer coefficient on the surface of the tested building material significantly influenced the emission rates of the chemical compounds released from the building material and adhesive.

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“…SBMs can reduce energy consumption because additional operating costs are not incurred, while methods such as mechanical ventilation and bake-out consume energy to operate machines such as ventilating fans and boiler systems. Thus, studies on the performance of SBMs and the factors influencing them have been conducted through various experimental methods, particularly in 20 L smallscale test chambers [13][14][15][16]. Furthermore, ventilation efficiency indices using computational numerical analyses, including Scales for Ventilation Efficiency 1-6 (SVE 1-6), Purifying Flow Rate (PFR), and Net Escape Velocity (NEV), are used as evaluation indices for the reduction of indoor contaminant concentration [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

A study on the application of sorptive building materials to reduce the concentration and volume of contaminants inhaled by occupants in office areas

Park

Seo

Kim

2015

Energy and Buildings

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Performance test for evaluating the reduction of VOCs in rooms and evaluating the lifetime of sorptive building materials

Cited by 57 publications

References 9 publications

Influence of Environmental Factors on Performance of Sorptive Building Materials

Influence of Environmental Factors on Performance of Sorptive Building Materials

Control of emission rates of chemical compounds emitted by controlling their mass transfer coefficients on the surface of the tested building material

A study on the application of sorptive building materials to reduce the concentration and volume of contaminants inhaled by occupants in office areas

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