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Wu Z.-H.,Chinese Academy of Sciences | Wu Z.-H.,Zhongke Lihan Thermoacoustic Engineering Research Center | Luo E.-C.,Chinese Academy of Sciences | Luo E.-C.,Zhongke Lihan Thermoacoustic Engineering Research Center | And 5 more authors.
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | Year: 2012

Solar dish traveling-wave thermoacoustic electricity generator, which has advantages on high reliability, high intrinsic efficiency and high flexibility, has been developed as a novel thermo-electricity device in recent years. In this paper, a 1 kW solar-powered traveling-wave thermoacoustic electricity generation system has been built. In this system, a dish solar collector is used to collect the solar irradiation, a high-temperature heat pipe is used to transfer the heat to the hot end of the traveling-wave thermoacoustic heat engine and the generator is used to convert the heat to the electricity. In the preliminary experiments, a high-frequency induction heating machine is used to simulate the sunlight and electrical powers of 116 W and 255 W are achieved at 751°C and 798°C heating temperature with 3.5 MPa pressurized helium. The results show the feasibility of the whole system. Nowadays, system improvements are under way and more results will be reported in the future. Source

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