Mid and low-temperature solar-coal hybridization mechanism and validation
文献类型：期刊论文
| 作者 | Zhao, Yawen; Hong, Hui; Jin, Hongguang |
| 刊名 | ENERGY
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 74页码:78-87 |
| 关键词 | Mechanism Validation Solar-coal hybridization Mid and low-temperature Solar-to-electricity efficiency |
| 英文摘要 | A higher solar-to-electricity conversion efficiency was one of the major advantages of the solar-fossil hybrid systems, compared to the solar-only power plants. In this paper, a new mechanism to reveal the reasons for the improved solar-to-electricity efficiency in a solar-hybrid power plant was given. A correlation was built to describe the main influencing factors of its thermodynamic performances, including higher collector efficiency, higher turbine internal efficiency and upgraded energy level of the mid and low-temperature solar heat. This proposed mechanism can be used to integrate solar-coal hybridization system effectively. A case study was taken as the typical 200 MW coal-fired power plant hybridized with solar heat at approximately 300 degrees C, where the solar heat was used to preheat the feed water before entering the boiler. Furthermore, simulation results of this mid and low-temperature solar-hybridization system was conducted to prove the proposed mechanism. It is expected that the theoretical values have a good agreement with the simulation ones. The results obtained indicate that why development of mid and low-temperature solar-coal hybridization technology may provide a promising direction to efficient utilization of low-grade solar thermal energy, and provide the direction to enhance system performances of this kind of solar-coal hybrid power plants. (C) 2014 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Energy & Fuels |
| 研究领域[WOS] | Thermodynamics ; Energy & Fuels |
| 关键词[WOS] | FIRED POWER-PLANT ; INTEGRATION ; GENERATION ; PERFORMANCE ; SYSTEMS ; EXERGY ; HEAT |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000342862100009 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/105990]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yawen,Hong, Hui,Jin, Hongguang. Mid and low-temperature solar-coal hybridization mechanism and validation[J]. ENERGY,2014,74:78-87. |
| APA | Zhao, Yawen,Hong, Hui,&Jin, Hongguang.(2014).Mid and low-temperature solar-coal hybridization mechanism and validation.ENERGY,74,78-87. |
| MLA | Zhao, Yawen,et al."Mid and low-temperature solar-coal hybridization mechanism and validation".ENERGY 74(2014):78-87. |
入库方式： OAI收割
来源：工程热物理研究所
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