Coal-water slurry fuel (CWSF or CWS or CWF) is a fuel which consists of fine coal particles suspended in water. Presence of water in CWS reduces harmful emissions into the atmosphere, makes the coal explosion-proof, makes use of coal equivalent to use of liquid fuel (e.g. heating oil), and gives other benefits (see below).
CWS consists of 55-70% of fine dispersed coal particles and 30-45% of water. Coal particles suitable for diesel fuel replacement typically need to be less than 20 micrometres in diameter.
Read more about Coal-water Slurry Fuel: Uses, Benefits, History, See Also
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“It is now many years that men have resorted to the forest for fuel and the materials of the arts: the New Englander and the New Hollander, the Parisian and the Celt, the farmer and Robin Hood, Goody Blake and Harry Gill; in most parts of the world, the prince and the peasant, the scholar and the savage, equally require still a few sticks from the forest to warm them and cook their food. Neither could I do without them.”
—Henry David Thoreau (1817–1862)