  Biomass gasification procedure is a very complex process and it is influenced
by many physical and chemical factors such as biomass gasification temperature
and gasifier type. Thermodynamic assessment methodology based on the energy and
exergy analysis can be used to evaluate the system performance and
environmental impacts. In this paper, thermodynamic analysis of the biomass
gasification system is given for the whole system and its components. The
parametric studies reveal the effects of design and operating indicators on the
exergy efficiency and exergy destruction rate. The result shows that the
gasification temperatures for the biomass gasification system change
significantly with the type of the gasifying medium.
