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Biomass

 Biomass is Agricultural & animal wastes that can be used as a fuel. E.g. of

Biomass – Firewood, cattle dung, sewage, dry leaves, stems.Biomass is the
source of energy derived from living things (organic matter). For a long time, we

relied on wood for the source of heat energy. In India, we make fuel out of

biowaste such as cow dung due to the availability of a thriving population of
livestock.

 Normally biomass has low calorific value & produce lot of smoke when they are

burnt. Their efficiency as a good fuel has been increased tremendously with the

application of technology. For e.g. cow dung becomes efficient & cheap good fuel
in a Bio-gas plant.

 Charcoal is better fuel than wood because it does not contain water & other

volatile material which are present in wood.

Charcoal burns without smoke, flames & has high calorific value.

Biogas

 Biogas is an excellent fuel & contains 75% of Methane (). It burns without smoke,

leaves no residues like ash, with high heat capacity.