Woodstoves emissions

The Similar Mixture Approach On a case by case basis a candidate mixture or groups of mixtures could act similarly [1,11], Analogies are used when adequate information is not available for the mixture of concern, and this approach is often applied to complex mixtures that have been extensively investigated, such as coke oven emissions, diesel exhaust, and woodstove emissions. However, information should be available to ascertain that a mixture is sufficiently similar to the mixture of concern. There are no quantitative criteria to decide when a mixture is sufficiently similar, though it is recognized that some key components should be represented in similar proportions [1]. As in the previous approach, the mixture must be treated as an individual chemical because the whole mixture has to be experimentally tested to some extent. 

Effects of Appliance Type and Operating Variables on Woodstove Emissions... 

Emission Inventory scaling, proposed by (24), uses the relative emission rates of two source types subject to approximately the same dispersion factor (e.g., residential heating by woodstoves and natural gas) to approximate the source contribution from the source type not included in the chemical mass balance (e.g., natural gas combustion). The ratio of the emission rates is multiplied by the contribution of the source type which was included in the balance. 

Vikelsoe J, Madsen H, Hansen K. 1994. Emission of dioxins from Danish woodstoves. Chemosphere 29(9-11) 2019-2027. 

The low organic emissions from steady state combustion at power plants should not be extrapolated to small scale units such as woodstoves where the necessary conditions for efficient combustion are rarely achieved. 

TABLE 7.5 Comparison of Emissions from Catalytic and Noncatalytic Woodstoves"... 

Catalysts in thin-wall honeycomb form offer the advantages of low pressure drop, high geometric surface area, and short diffusion distance as compared to conventional pellets and beads in fixed bed reactors (1). Active zeolite catalysts may be extruded in the form of a honeycomb structure or they may be washcoated on ceramic honeycomb substrates. The latter technique has been widely used in automotive emissions control (2), woodstove combustors (3), control of volatile organic emissions from organic solvents (4), ozone abatement in jet aircraft passenger cabins (5), and N0x abatement... 

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