2) Low tunnel solar drying technology
3) Forced circulation solar drying technology
4) Roof integrated unglazed solar drying systemclass
5) Conversion of fruit and vegetable residues to biogas and manure
6) Anaerobic filter based effluent treatment system for dairies
7) Conversion of kitchen residues to biogas and manure
8) Open core down draft gasifier systems
9) Biomass combustor-cum-hot air generator
10) Inverted down draft gasifier type biomass cook stoves
11) Movable platform type wood cutter for preparing feedstock for gasifier
12) Improved biomass cook stoves:batch and continuous operation
