Wood industry is a major source in the northern part of the country. Eucalyptus residuals were
satisfactorily gasified in a 25 kWe BPGSP. It was demonstrated that the system can be operated for
several weeks. The operation was successful. The engine operated well on the producer gas, but some
deposits were seen in the engine afterwards. The engine–generator system was reduced to about 44%
compared to LPG operation by a power factor of 0.8. The power loss was higher than expected, about
35% as a result of the lower heating value of a producer gas/air mixture. Concerning the efficiency of
system there are some problems that need to be proved such as the optimization of supplied air flow
rate for high gasification efficiency and the concern about the efficiency of engine. Normally, cool gas
efficiency of gasifier should not be less than 70% and the thermal conversion efficiency of modified
diesel engine on producer should not be less than 25% and for overall efficiency should not less than
14% [13].