Study on a Basic Unit of a Double-acting Thermoacoustic Heat Engine Used for Dish Solar Power
A double-acting thermoacoustic heat engine was invented recently by our group.And such a system has been considered to be used for dish-solar power generation.In order to effectively absorb concentrated solar heat,a special-shape heater being composed of a bundle of heat tubes was designed.To understand the internal operating mechanism and the thermodynamic performance of such a solar-driven thermoacoustic generator,a test rig having only one basic unit was designed,built and tested.Firstly,thermoacoustic conversion performance of this test rig was theoretically predicted base on linear thermoacoustic model.It was found that the structure parameters of the heating tubes play a quite important role.In the simulation,a highest thermal efficiency of 51.37%and a net acoustic power of 1.6kW under a heating temperature of 650℃ can be obtained.Then,experiments were conducted and compared with the simulation results.A large deviation between the theoretical and experimental results was observed and possible reasons were analyzed in the paper.
Dish-solar Power Double-acting Thermoacoustic Heat Engine
Shuang Zhang Ruidong Zhao Zhuo Yang Guoyao Yu Zhanghua Wu Wei Dai Ercang Luo
Key Laboratory of Cryogenics,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Key Laboratory of Cryogenics,Chinese Academy of Sciences,Beijing 100190,China
国际会议
桂林
英文
1-11
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）