Abstract

In order to utilize the unused biomass spread in broad area, a high efficient and compact biomass power plant is demanded. In this study, the design and control methods of the biomass downdraft gasifier for solid oxide fuel cells (SOFCs) were investigated. Using the calculation model of biomass gasifier, the experimental data and calculated data were compared. The validity of the model was confirmed, it was possible to predict the composition of the gasified gases with the parameters (Temperature, Supply of biomass, Air, Steam and Compositions of biomass). Furthermore, from the I-V characteristics of the SOFC fed by the gasified gases, it was confirmed that the power output by the gasified gas was about 0.85 times as large as that by pure hydrogen.

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