Impact of Indoor Environmental Parameters on Formaldehyde Concentrations in Unoccupied Research Houses

Matthews, TG; Fung, Kin Wah; Bj, Tromberg; Ar, Hawthorne

doi:10.1080/00022470.1986.10466172

Cited by 18 publications

(16 citation statements)

References 7 publications

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“…The model, in accordance with Fick's first law of diffusion, assumes a linear relationship with a negative slope exists between the formaldehyde emission factor and the steady state, gas-phase concentration of formaldehyde. The model was applied previously to investigate the impact of indoor temperature and relative humidity (RH) on the formaldehyde concentration resulting from one emitter in a single compartment (Matthews et al, 1986). Matthews' model was validated by researchers at the National Institute of Standards and Technology (NIST) (Silberstein et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Source emission and model evaluation of formaldehyde from composite and solid wood furniture in a full-scale chamber

Liu

Mason

Guo

et al. 2015

Atmospheric Environment

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Section: Introductionmentioning

confidence: 99%

Source emission and model evaluation of formaldehyde from composite and solid wood furniture in a full-scale chamber

Liu

Mason

Guo

et al. 2015

Atmospheric Environment

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“…The main source of CH 2 O emissions in homes is wood products. [12][13][14] There are three primary methods to improve IAQ: (1) source control, (2) improved ventilation, and (3) remediation. Current source control consists of voluntary standards for particleboard construction.…”

Section: Introductionmentioning

confidence: 99%

Design Approaches for a Cycling Adsorbent/Photocatalyst System for Indoor Air Purification: Formaldehyde Example

Chin

Ollis

2008

Journal of the Air & Waste Management Association

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A kinetic model for a cycling adsorbent/photocatalyst combination for formaldehyde removal in indoor air (Chin et al. J. Catalysis 2006, 237, 29-37) was previously developed in our lab, demonstrating agreement with lab-scale batch operation data of other researchers (Shiraishi et al. Chem. Engineer. Sci. 2003, 58, 929-934). Model parameters evaluated included adsorption equilibrium and rate constants for the adsorbent (activated carbon) honeycomb rotor, and catalytic rate constant for pseudo-first-order formaldehyde destruction in the titanium dioxide photoreactor. This paper explores design consequences for this novel system. In particular, the batch parameter values are used to model both adsorbent and photocatalyst behavior for continuous operation in typical residential home challenges. Design variables, including realistic make-up air fraction, adsorbent honeycomb rotation speed, and formaldehyde source emission rate, are considered to evaluate the ability of the system to achieve World Health Organization pollutant guidelines. In all circumstances, the size of the required rotating adsorbent bed and photoreactor for single-stage operation and the resultant formaldehyde concentration in the home are calculated. The ability of how well such a system might be accommodated within the typical dimensions of commercial ventilation ducts is also considered.

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“…The influence of indoor temperature and relative humidity on the emissions and concentrations of formaldehyde has been studied and modeled in chamber experiments and research houses (Matthews et al, 1986;Silberstein, 1988). Modeling data for the research houses indicated that changing the indoor conditions from 20 o C, 30 % relative humidity (RH) to 26 o C, 60 % RH would result in two-to fourfold increases in formaldehyde concentration for the same air change rate (Matthews et al, 1986).…”

Section: Introductionmentioning

confidence: 99%

Volatile organic compound concentrations and emission rates measured over one year in a new manufactured house

Hodgson

Nabinger²,

Persily³

2004

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A study to measure indoor concentrations and emission rates of volatile organic compounds (VOCs), including formaldehyde, was conducted in a new, unoccupied manufactured house installed at the National Institute of Standards and Technology (NIST) campus. The house was instrumented to continuously monitor indoor temperature and relative humidity, heating and air conditioning system operation, and outdoor weather. It also was equipped with an automated tracer gas injection and detection system to estimate air change rates every 2 h. Another were generally lowest during the winter months. Also, an apparent association between TVOC emissions and outdoor temperature was observed on a one-week time scale.

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Impact of Indoor Environmental Parameters on Formaldehyde Concentrations in Unoccupied Research Houses

Cited by 18 publications

References 7 publications

Source emission and model evaluation of formaldehyde from composite and solid wood furniture in a full-scale chamber

Source emission and model evaluation of formaldehyde from composite and solid wood furniture in a full-scale chamber

Design Approaches for a Cycling Adsorbent/Photocatalyst System for Indoor Air Purification: Formaldehyde Example

Volatile organic compound concentrations and emission rates measured over one year in a new manufactured house

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