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Biomass is a collective term for plant or animal material used to produce electricity or heat for direct use through combustion – for example, by burning wood, crops, or waste.

They are either used in their raw form – such as when wooden logs are burned – or converted into pellet fuel. The biomass fuel is burned in a boiler in a similar process to coal-fired power generation.

When controlling combustion, process efficiency depends upon achieving the best possible ratio of air-to-fuel. This allows the heat capture of the boiler to be maximized, and the optimum amount of biomass to be used. Achieving the required air-to-fuel ratio is challenging, as it is constantly affected by changes in loading conditions, fuel composition, fuel particle size, and caloric content. Careful monitoring of oxygen (O2) and combustibles (CO+H2) can ensure efficient combustion of the biomass fuel.

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    Biomass boilers

    Biomass boilers provide the power and steam needed for many industrial processes. Efficient burner control ensures reduced fuel costs and lower emissions, and depends upon optimizing the combustion reaction between oxygen (from air) and the fuel used. An ideal ratio between the two ensures safe and efficient operation with minimal greenhouse gas emissions.

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