6Dec19 evening Q41
0. Identify the correct sequence of biomass fuels in terms of their energy content per unit mass
- Option : D
- Explanation : The energy density of a fuel per unit mass is called the specific energy of that fuel. The coconut shell has a high calorific value of 20.8MJ/kg and can be used to produce steam, energy-rich gases, bio-oil, biochar etc. The "caloric content" dried wood is about 19 to 20 MJ/kg. While one dung cake of an average size gives 2100 kJ worth of energy.
