Briquettes are solid blocks of fuel used for combustion to fuel a fire. The most common types of briquette are:
Fig.1 Coal Briquette Stove (Nanjing University)
- Charcoal: Charcoal briquettes are made by compacting coal dust at high pressure to form a high density fuel block. Details of making Making Charcoal Briquettes In China can be found.
- Peat (commonly used in Ireland)
- Biomass: These are made from agricultural waste and so are a renewable energy source and help reduce deforestation in developing countries. Biomass briquettes serve to fuel biomass cook stoves a common cooking technology used to improve health effects; the dangers and risks associated with wood collection and deforestation problems in the developing world.
Wood pellets are made of compressed sawdust at high pressure. They are typically used for domestic or small-scale systems. They have moisture content of approximately 8% 1
and a higher density than natural wood making a very dense fuel source. They are a clean fuel requiring no additives in the production, providing a renewable alternative to coal and other fossil fuels.