The concentration of three air pollutants in indoor air during a one hour combustion period of three biofuels, i.e. fuelwood, dung-cakes and agri-residue, was monitored. A mixture of fuelwood and dung-cake (1 : 1) was also used in the study. The concentration of all three pollutants was measured...

A comparison of unit cost of water discharged using biomass gasifier based water pumping systems with two other commonly used conventional options, i.e. diesel engine pumpset and electric motor pumpset has been made. Results of some typical calculations have been presented and discussed.