开展了采用声压放大器结构的驻波型热声发动机驱动单级双向进气型脉管制冷机实验研究,考察了声压放大器长度对热声驱动脉管制冷特性的影响.经过实验优化,采用长度3.7 m、直径8 mm的声压放大器,在2.0 kW加热功率条件下,实现1.196的压比,制冷温度达到54.5 K.
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