Performance of solar powered thermoacoustic engine at different tilted angles |
| |
| Authors: | Chao Shen Yaling He Yuguang Li Hanbing Ke Dongwei Zhang Yingwen Liu |
| |
| Affiliation: | 1. Key Laboratory of Cryogenics, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;1. Key Laboratory of Cryogenics, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;1. Institute of Aerospace Engineering, TU Dresden, 01062 Dresden, Germany;2. Department of Thermodynamics, Theory of Machines and Thermal Systems, Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroc?aw, Poland;1. Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, PR China;2. Energy Research Institute @ NTU, Nanyang Technological University, Singapore 637141, Singapore;1. Department of Chemical Engineering, National Institute of Technology, Tiruchirapalli 620 015, India;2. Centre for Cryogenic Technology, Indian Institute of Science, Bangalore 560 012, India |
| |
| Abstract: | In this study, the thermodynamic performance of a thermoacoustic engine charged with different working fluids were examined at different tilted angles ranging from ?90° to 90° with 45° angular interval. The results suggest that the influence of the tilted angle on the onset temperature of the engine depends on the viscidity of the working gas. The lower the viscidity is, the more obvious the influence is. The difference between the maximum and the minimum onset temperature of the engine charged with nitrogen could be as high as 52 °C, but the difference for system charged with helium is only about 1.5 °C. The tilted angle has little or no effect on the pressure oscillation amplitude, pressure ratio, resonance frequency and the relation of the temperature versus heat power. They are mainly affected by the properties of the working gas. Furthermore, the interactions of the oscillatory motion and the natural convection of the working gas within the thermoacoustic core were also examined. The properties are of importance for the thermoacoustic engine driven by two-axis solar collector, for the tilted angle of the engine varies with the sun position. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
