Waste heat is an environmental issue in the world. There are some technologies that can be used to recovery the waste heat, one of which is thermoacoustic cooler technology. Thermoacoustic technology can be divided into two parts: one is thermoacoustic engine and cooler. To design the cooler system having high efficiency and lower onset heating temperature, the effect of mean pressure is investigated. By increasing mean pressure from 0.5 to 3 MPa, the heating temperature generating acoustic power can be decreased from 831 to 580 K. Moreover, 15% of Thermodynamic upper limit value of the whole cooler system is achieved.

中文翻译：

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平均压力对单级热驱动热声冷却器性能的影响

余热是世界范围内的环境问题。有一些可用于回收废热的技术，其中之一是热声冷却器技术。热声技术可分为两部分：一是热声发动机和冷却器。为了设计效率高，起始加热温度低的冷却器系统，研究了平均压力的影响。通过将平均压力从0.5 MPa增加到3 MPa，可以将产生加热温度的声功率从831 K降低到580K。此外，整个冷却器系统的热力学上限值达到15％。