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The "Combi" design is a composite construction that combines the
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best features associated with both fire tube and water tube boilers.
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It comprises of a water tube furnace of "Membrane Wall" construction
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and a shell and tube section that provides convective heating
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surface. The former ensures gas tightness, increased heat exchange
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efficiency and minimum refractory work, the latter provides large water volume and steam
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release area.
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Fuel
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The boilers are designed to fire various types of Biomass fuel and can be supplemented with fossil fuel. The nature of fuel and degree of mechanization will determine the type of fuel feeding
system
