| Investigation on the thermoacoustic conversion characteristic of regenerator | |
| Wu, Zhanghua1; Chen, Yanyan1; Dai, Wei1; Luo, Ercang1; Li, Donghui1,2 | |
| 刊名 | Applied energy
 |
| 2015-08-15 | |
| 卷号 | 152页码:156-161 |
| 关键词 | Regenerator Thermoacoustic conversion Linear motor |
| ISSN号 | 0306-2619 |
| DOI | 10.1016/j.apenergy.2015.02.054 |
| 通讯作者 | Luo, ercang(ecluo@mail.ipc.ac.cn) |
| 英文摘要 | Regenerator is the core component in the regenerative heat engines, such as thermoacoustic heat engine, and stirling heat engine. the regenerator has a porous configuration, in which the thermoacoustic effect happens between the working gas and solid wall converting heat into acoustic work. in this paper, a novel experimental setup was developed to investigate the thermoacoustic conversion characteristic of the regenerator. in this system, two linear motors acted as compressors to provide acoustic work for the regenerator and the other two linear motors served as alternators to consume the acoustic work out of the regenerator. by changing the impedance of the alternators, the phase difference between the volume velocities at the two ends of the regenerator could be varied within a large range. in the experiments, the influence of phase difference, heating temperature and different materials on the performance of the regenerator were studied in detail. according to the experimental results, the output acoustic power increased when the phase difference between velocities of the compression and expansion pistons increased within this phase angle range. and the thermoacoustic efficiency had different optimum values with different heating temperatures. additionally, it also shows that flow resistance and heat transfer area were very important to the performance. in the experiments, a maximum output acoustic power of 715w and a highest thermoacoustic efficiency of 35.6% were obtained with stack and random fiber type regenerators respectively under 4 mpa pressurized helium and 650 degrees c heating temperature. this work provides an efficient way to investigate the thermoacoustic conversion characteristic of the regenerator. it also provides some clues to the regenerator design. (c) 2015 elsevier ltd. all rights reserved. |
| WOS关键词 | DRIVEN ACOUSTIC OSCILLATIONS ; ENERGY TRANSFORMATION ; HEAT TRANSPORTATION ; STIRLING ENGINE |
| WOS研究方向 | Energy & Fuels ; Engineering |
| WOS类目 | Energy & Fuels ; Engineering, Chemical |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000356745200015 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376379 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Luo, Ercang |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Cryogen, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Zhanghua,Chen, Yanyan,Dai, Wei,et al. Investigation on the thermoacoustic conversion characteristic of regenerator[J]. Applied energy,2015,152:156-161. |
| APA | Wu, Zhanghua,Chen, Yanyan,Dai, Wei,Luo, Ercang,&Li, Donghui.(2015).Investigation on the thermoacoustic conversion characteristic of regenerator.Applied energy,152,156-161. |
| MLA | Wu, Zhanghua,et al."Investigation on the thermoacoustic conversion characteristic of regenerator".Applied energy 152(2015):156-161. |
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