A14 Development of small co-generation system fueled wood pellets for greenhouse

Abstract

Global warming and exhaustion of fossil fuels are caused by mass consumption of fossil fuel, and they have become worldwide problems. A small co-generation system fueled wood pellets for greenhouse are focused in order to solve these problems. Therefore, this co-generation system with Stirling engine was developed to evaluate its perfomance for three elements of a combustor, Stirling engine, and three kinds of wood pellet. As the results, the combustor was supplied with about 90% heat of pellets in this experiment. The maximum power electric-generating capacity was 165W in this experiment, and the total energy efficiency was 49% with 6.8kW of total heat recovery. Many ashes from bark pellets were found on a fire grate of combustor after this experiment. it was necessary to remove ashes fom the fire grate at work frequentry.