As the concern for CO₂ emissions and global warming raises, the Stirling machine appears as a candidate alternative technology to vapor compression cycles that use refrigerant fluids. In this paper, we present the design, manufacturing and testing of a Beta Stirling machine for refrigeration applications. The first part of the paper presents the principle of the Stirling cycle, the mechanical configuration of the designed machine, and the key design parameters. The second part describes the experimental test bench and instrumentation of the Stirling machine. The last part of the paper presents experimental results. The prototype typical performance is a 450 W heat lift at 4°C and a COP of 0.9 when Nitrogen is used as the working gas. Cold end temperature variation as a function of heat lifts and charge pressure are presented. Coefficient of Performance is also discussed. Mechanical power, instantaneous torque and velocities curves are reported.

随着人们对CO ₂排放和全球变暖的担忧增加，斯特林机器似乎是使用制冷剂流体的蒸汽压缩循环的替代技术。在本文中，我们介绍了用于制冷应用的Beta斯特林机的设计，制造和测试。本文的第一部分介绍了斯特林循环的原理，所设计机器的机械配置以及关键设计参数。第二部分介绍了斯特林机的实验性试验台和仪器。本文的最后一部分介绍了实验结果。原型的典型性能是450 W的热量提升功率为4使用氮气作为工作气体时，°C和COP为0.9。给出了冷端温度随热升和充气压力的变化。还讨论了性能系数。报告了机械功率，瞬时转矩和速度曲线。