【摘要】 燃烧型自由活塞斯特林发电机因其燃料适应性广而在分布式热电联供等领域颇受关注。本文对新型气体燃烧器耦合自由活塞斯特林发电机开展了实验研究，并将实验结果与模拟结果进行对比。首先分析了系统输出特性、能量流动以及(?)损失，其次考察了燃料流量和负载对系统输出性能的影响规律。实验结果表明：发电系统在燃料流量0.54 m~3/h(标准工况)、外接电阻20?的额定工况下能获得1.53 kW电功，燃烧器吸热效率为30.1%，燃料–电效率和热电效率分别达到9.8%和32.4%。此外，输出电功随着外接电阻的减小而增加，燃料–电效率随着燃料流量的增加呈现先增加后减小的趋势。更多还原

【Abstract】 The combustor-coupled free-piston Stirling engine has attracted considerable attention in areas such as distributed heat and power generation due to its wide fuel adaptability. This paper presents an experimental study on a novel gas combustor coupled with a free-piston Stirling engine,and compares the experimental results with simulation results. Firstly, the output characteristics,energy flow, and losses of the system are analyzed. Secondly, the effects of fuel flow rate and load on the system’s output performance are investigated. The results indicate that under the rated conditions of fuel flow rate at 0.54 m~3/h and external resistance of 20 ?, the power generation system can achieve 1.53 k W output electric power. The combustor’s heat absorption efficiency is 30.1%, with fuel-to-electricity efficiency and thermoelectric efficiency reaching 9.8% and 32.4%respectively. Furthermore, the output electric power increases as the external resistance decreases,while the fuel-to-electricity efficiency shows a trend of initially increasing and then decreasing with increasing fuel flow rate.更多还原