低温度熱源利用スターリングエンジンの試作

抄録

Stirling engines do not necessarily require the combustion of fossil fuels and are therefore attracting attention as heat engines that can use a wide variety of fuels and as low-pollution equipment. Therefore, the Stirling engine is expected to be put to practical use in areas where it is difficult to utilize internal combustion engines, such as solar heat and factory waste heat. The aim of this study is to design and build a prototype Stirling engine that can be operated using low-temperature heat sources such as snow and ice. In the prototype engine, the bore of the power piston was changed to a smaller bore and experiments were carried out and discussed. As a result, it was confirmed that the continuous operation time could be improved and that the engine could be operated at a temperature difference of about 30°C. Based on these results, a larger Stirling engine using a low-temperature heat source and a non-contact power generation method will be investigated to increase the power output.