| Characteristics of plasma induced by interaction of a free-oscillated laser pulse with a coal target in air and combustible gas | |
Yang QS(杨乾锁) ; Peng ZM(彭志敏); Yang QS
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| Source Publication | International Journal of Hydrogen Energy
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| 2010 | |
| Volume | 35Issue:10Pages:4715-4722 |
| ISSN | 0360-3199 |
| Abstract | Plasma in the air is successfully induced by a free-oscillated Nd:YAG laser pulse with a peak power of 10(2-3) W. The initial free electrons for the cascade breakdown process are from the ablated particles from the surface of a heated coal target, likewise induced by the focused laser beam. The laser field compensates the energy loss of the plasma when the corresponding temperature and the images are investigated by fitting the experimental spectra of B-2 Sigma(+) -> X-2 Sigma(+) band of CN radicals in the plasma with the simulated spectra and a 4-frame CCD camera. The electron density is estimated using a simplified Kramer formula. As this interaction occurs in a gas mixture of hydrogen and oxygen, the formation and development of the plasma are weakened or restrained due to the chaining branch reaction in which the OH radicals are accumulated and the laser energy is consumed. Moreover, this laser ignition will initiate the combustion or explosion process of combustible gas and the minimum ignition energy is measured at different initial pressures. The differences in the experimental results compared to those induced by a nanosecond Q-switched laser pulse with a peak power of 10(6-8) W are also discussed. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.ijhydene.2009.12.045 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000278418700028 |
| WOS Keyword | IGNITION ; MIXTURES ; RADIATION ; DISCHARGE ; BREAKDOWN ; VOLUME ; BEAM |
| WOS Research Area | Chemistry ; Electrochemistry ; Energy & Fuels |
| WOS Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| Funding Organization | National Science Foundation of China [10472123] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/43565 |
| Collection | 高温气体动力学国家重点实验室 |
| Corresponding Author | Yang QS |
| Recommended Citation GB/T 7714 | Yang QS,Peng ZM,Yang QS. Characteristics of plasma induced by interaction of a free-oscillated laser pulse with a coal target in air and combustible gas[J]. International Journal of Hydrogen Energy,2010,35(10):4715-4722. |
| APA | Yang QS,Peng ZM,&Yang QS.(2010).Characteristics of plasma induced by interaction of a free-oscillated laser pulse with a coal target in air and combustible gas.International Journal of Hydrogen Energy,35(10),4715-4722. |
| MLA | Yang QS,et al."Characteristics of plasma induced by interaction of a free-oscillated laser pulse with a coal target in air and combustible gas".International Journal of Hydrogen Energy 35.10(2010):4715-4722. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| 084.pdf（941KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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