In order to optimize the combustor temperature field and flow field of Stirling engine,and further improve the heat transfer capacity of heating tube,the optimized scheme of combustor exhaust structure and ejection ratio was put forward,and the numerical simulation and experimental verification is carried out. The experimental results verifies that:Exhaust structure and ejection ratio have great influence on the efficiency of external combustion system;Exhaust structure and ejection ratio can be combined to further improve the efficiency of external combustion system,and the combined efficiency can reach up to 92.2％,with an increase of 1.4％;Optimization of exhaust position and ejection ratio can improve the performance of the whole engine;The effect test of ejection ratio on the performance of the engine is in good agreement with the numerical calculation,and the efficiency of external combustion system is increased by 1.19％.
关键词
斯特林发动机/燃烧室/数值模拟/外燃系统
Key words
Stirling engine/combustor/numerical simulation/external combustion system
维普
万方数据