Wood gasification as an economic source of heating
Wood gasification is a thermal decomposition of wood with a significant air (oxygen) deficit which results in the creation of combustible gases (wood gases) and ash.
Modern wood gasification boilers use the energy from the wood three times more effectively than appliances with a traditional hearth and their emissions are similar to gas boilers.
Wood gasification process in central heating boilers can be divided into four main phases:
1. Drying and de-gassing wood at a temperature of 450°C.
2. Combustion of the mixture of wood gas and secondary air at a temperature of 560°C.
3. Burning up the flame and heat emission at a temperature of 1200°C.
4. Fumes of a temperature of 160°C are emitted through the chimney flue.