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Charcoal briquettes sold for cooking food can include: [5] [6] Wood charcoal (fuel) Lignite coal (fuel) Anthracite coal (fuel) Limestone (ash colourant) Starch (binder) Borax (release agent) Sodium nitrate (accelerant) Sawdust; Wax (some brands: binder, accelerant, ignition facilitator). Chaff (rice chaff and peanut chaff)
Wood briquettes' ash and sulfur content varies. Some pure wood briquettes with the bark removed can have as low as an 0.3% ash content, while briquettes with added materials can have up to a 7% ash content. [2] Briquettes have a substantially higher energy content than logs per cubic foot due to their density, which means they take up less ...
Some charcoal briquettes of similar shape to coal briquettes. Smokeless fuel is a type of solid fuel which either does not emit visible smoke or emits minimal amounts during combustion. These types of fuel find use where the use of fuels which produce smoke, such as coal and unseasoned or wet wood, is prohibited.
Biomass briquettes, mostly made of green waste and other organic materials, are commonly used for electricity generation, heat, and cooking fuel. These compressed compounds contain various organic materials, including rice husk, bagasse, ground nut shells, municipal solid waste, agricultural waste.
Modern "charcoal" briquettes, widely used for outdoor cooking, are made with charcoal but may also include coal as an energy source as well as accelerants, binders and filler. To contain the charcoal and use it for cooking purposes, a barbecue grill may be used. A small Japanese charcoal grill is known as a shichirin.
The energy content of wood pellets is approximately 4.7 – 5.2 MWh/tonne [43] [44] (~7450 BTU/lb), 14.4-20.3 MJ/kg. [45] None of these three sets of values come even close to agreeing. High-efficiency wood pellet stoves and boilers have been developed in recent years, typically offering combustion efficiencies of over 85%. [ 46 ]
The heat available from each type of fuel is variable, and depends on the carbon and hydrogen content, as well as non-combustible or ash and water content. One measure of the heat produced by burning is the heat of combustion, an exact measure usually determined using bomb calorimetry and demanding complete combustion to carbon dioxide and water.
East Asian coal briquettes (Japanese: 練炭, Hepburn: rentan), also known by the names yeontan (Korean: 연탄) or fēngwōméi (Chinese: 蜂窩煤; Chinese: 蜂窝煤, literally "beehive coal"), are coal briquettes used across East Asia for home cooking and residential home heating purposes. They were first invented in Japan, then propagated ...