Estimate the lower heat value LHV in kJkg Please show all st

Estimate the lower heat value (LHV) in kJ/kg. Please show all steps.

3. The energy contained in a kg of \"as received\" discarded MSW in the City of Saskville is 12,912 kJ/kg. The MSW has a moisture content of around 25.5%, and roughly 4.5% of the dry mass of MSW is hydrogen. Estimate the lower heat value (LHV) in kJ/kg.

Solution

Gross energy contained is 12,912kJ/kg

Moisture content is 25.5% I.e. (-)3292.56 kJ/kg

MSW in hydrogen is 4.5% I.e.(-)581.04kJ/kg

Thus net energy content is 9038.40kJ/kg