A Biomass Gas Engine System for Power Generation of OTOP Building in Southern Thailand

The main purpose of this paper is to present a biomass gas engine system for power generation of OTOP building in southern Thailand. It consists of an electrical steam generator, an Imbert-type fixed bed downdraft gasifier of 1 m³ capacity, a cyclone, a water scrubber, a gas cooling system and a packed bed filter, a gas engine of 1,425 cc and a 10 kWe generator. Rice husk and sawdust were used as biomass feedstock and steam was used as an agent in a gasification process. A preliminary result from the stationary model under the condition of 15% fuel moisture content, 20 kg/hr fuel feed rate and 10 kg/hr steam feed rate, indicated that the composition of product gas was CO of 14%, CO₂ of 16.2%, CH₄ of 2% and H₂ of 26.9%. Lower calorific of product gas was about 5,382 kJ/Nm³. The lev of product gas against fuel was about 77%.