Thermal performance of a micro-combustor for micro-gas turbine system
文献类型：期刊论文
| 作者 | Cao, H. L.; Xu, J. L. |
| 刊名 | energy conversion and management
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 48期号:5页码:1569-1578 |
| 关键词 | micro-combustion micro-combustor thermal performance operating range heat loss |
| ISSN号 | 0196-8904 |
| 通讯作者 | xujl@ms.giec.ac.cn |
| 中文摘要 | premixed combustion of hydrogen gas and air was performed in a stainless steel based micro-annular combustor for a micro-gas turbine system. micro-scale combustion has proved to be stable in the micro-combustor with a gap of 2 mm. the operating range of the micro-combustor was measured, and the maximum excess air ratio is up to 4.5. the distribution of the outer wall temperature and the temperature of exhaust gas of the micro-conbustor with excess air ratio were obtained, and the wall temperature of the micro-combustor reaches its maximum value at the excess air ratio of 0.9 instead of 1 (stoichiometric ratio). the heat loss of the micro-combustor to the environment was calculated and even exceeds 70% of the total thermal power computed from the consumed hydrogen mass flow rate. moreover, radiant hunt transfer covers a large fraction of the total heat loss. measures used to reduce the heat loss were proposed to improve the thermal performance of the micro-combustor. the optimal operating status of the micro-combustor and micro-gas turbine is analyzed and proposed by analyzing the relationship of the temperature of the exhaust gas of the micro-combustor with thermal power and excess air ratio. the investigation of the thermal performance of the micro-combustor is helpful to design an improved microcombustor. |
| 英文摘要 | premixed combustion of hydrogen gas and air was performed in a stainless steel based micro-annular combustor for a micro-gas turbine system. micro-scale combustion has proved to be stable in the micro-combustor with a gap of 2 mm. the operating range of the micro-combustor was measured, and the maximum excess air ratio is up to 4.5. the distribution of the outer wall temperature and the temperature of exhaust gas of the micro-conbustor with excess air ratio were obtained, and the wall temperature of the micro-combustor reaches its maximum value at the excess air ratio of 0.9 instead of 1 (stoichiometric ratio). the heat loss of the micro-combustor to the environment was calculated and even exceeds 70% of the total thermal power computed from the consumed hydrogen mass flow rate. moreover, radiant hunt transfer covers a large fraction of the total heat loss. measures used to reduce the heat loss were proposed to improve the thermal performance of the micro-combustor. the optimal operating status of the micro-combustor and micro-gas turbine is analyzed and proposed by analyzing the relationship of the temperature of the exhaust gas of the micro-combustor with thermal power and excess air ratio. the investigation of the thermal performance of the micro-combustor is helpful to design an improved microcombustor. (c) 2006 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | thermodynamics ; energy & fuels ; mechanics ; physics, nuclear |
| 研究领域[WOS] | thermodynamics ; energy & fuels ; mechanics ; physics |
| 关键词[WOS] | engine |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/journal/01968904 |
| 语种 | 英语 |
| WOS记录号 | WOS:000245957800018 |
| 公开日期 | 2010-09-27 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/3472]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Wushan 510640, Peoples R China 2.Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, H. L.,Xu, J. L.. Thermal performance of a micro-combustor for micro-gas turbine system[J]. energy conversion and management,2007,48(5):1569-1578. |
| APA | Cao, H. L.,&Xu, J. L..(2007).Thermal performance of a micro-combustor for micro-gas turbine system.energy conversion and management,48(5),1569-1578. |
| MLA | Cao, H. L.,et al."Thermal performance of a micro-combustor for micro-gas turbine system".energy conversion and management 48.5(2007):1569-1578. |
入库方式： OAI收割
来源：广州能源研究所
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