Abstract
Gases burn more efficiently than solids, gasification is used for generating energy from wood pellets Electricity can be generated cleanly by a Stirling engine driven by the heat energy obtained through gasified combustion, along with a cogeneration system, without emitting surplus CO2 into the atmosphere. This study examined the basic combustion characteristics of a wood pellet gasified combustor for a Stirling engine and the performance of a Stirling engine cogeneration system with a wood pellet gasified combustor. A gasified combustor was built, and the combustor temperature and concentration was measured to study the combustion state. As a result, it was revealed that a gasified combustor was suitable for use with a Stirling engine because its exit temperature was higher than that of an ordinary updraft-type combustor. Our prototype combustor was capable of supplying a maximum 18.5KW to a Stirling engine using 23.8KW of fuel, resulting in a heat-to-fuel capacity of 78%.
