斯特林发动机绝热分析法研究

对斯特林发动机绝热分析法进行了详细的阐述，对GPU-3型和P-40型斯特林发动机进行了绝热分析。收集了NASA Lewis研究中心的GPU-3型和P-40型斯特林发动机不同工况下的一系列实验测试数据，通过绝热分析法计算数据和实验测试数据的对比可知：斯特林发动机绝热分析法计算的轴功率、吸热量均偏大。轴功率的计算误差随着转速的增加而增大，随着压力的增加而减小。吸热量的计算误差随着转速的增加而增大。绝热分析法计算误差主要是由于没有计算机械损失、发动机漏气损失以及没有考虑非定常的交变流动的影响造成的。

Study on the adiabatic analysis of stirling engine

the paper discussed the adiabatic analysis of stifling engine detailedly. The GPU - 3 and P- 40 stirling engine were simulated by using the adiabatic analysis. The adiabatic analysis predictions were compared with engine test data which come from NASA lewis. The results show that the brake power, heat input were over predicted. The calculation error in predicting brake power increases with increasing engine speed and decreases with increasing pressure. The reason is the adiabatic analysis of stirling engine doesn＇ t consider the mechanical loss, gas leakage loss and the effect of the oscillating flow.