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Peak shaving performance of coal-fired power generating unit integrated with multi-effect distillation seawater desalination
Xue, Yuan1; Ge, Zhihua1; Yang, Lijun1; Du, Xiaoze2
2019-09-15
发表期刊APPLIED ENERGY
ISSN0306-2619
卷号250页码:175-184
摘要The peak-load regulation of a coal-fired power plant is critical to promote renewable energy power generation in grid systems. A low-temperature multi-effect distillation (LT-MED) was proposed to improve the dispatchability of a 600 MW coal-fired power generating unit; here, an unsteady thermal system model was established using the Ebsilon software to study peak shaving capacities. The results show that the increased extraction amount and pressure will reduce the power generation and increase the coal consumption. The peak shaving capacity curve was obtained based on the extraction amount. It is indicated that the peak shaving capacity can reach a maximum of 477 MW when the amount of steam extraction is less than 238 ton/h. When the amount of extraction is sufficiently large, the exhaust steam from the low-pressure turbine attains the minimum allowable value, the peak shaving capacity of the unit then sharply decreases. The dynamic response of an LT-MED system to the step variation of the output load of the power generating unit was also revealed. Moreover, the power generation and coal consumption are slightly influenced by the steam consumption in a single LT-MED system. The maximum extraction of the unit can afford a maximum of 19 LT-MED systems. The results of this study will provide a useful reference for the peak shaving of coal-fired power generating units.
关键词Coal-fired thermal power generation Dispatchability Dynamic analysis Multi-effect distillation
DOI10.1016/j.apenergy.2019.04.190
收录类别SCI ; SCIE
语种英语
资助项目national "973 Program" of China[2015CB251503]
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000482244000015
出版者ELSEVIER SCI LTD
EI入藏号20191906904072
EI主题词Electric load dispatching
EI分类号445.1 Water Treatment Techniques - 471.4 Seawater, Tides and Waves - 524 Solid Fuels - 641.1 Thermodynamics - 706.1.1 Electric Power Transmission - 802.3 Chemical Operations - 822.1 Food Products Plants and Equipment
引用统计
被引频次:41[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/31573
专题兰州理工大学
能源与动力工程学院
通讯作者Ge, Zhihua; Du, Xiaoze
作者单位1.North China Elect Power Univ, Minist Educ, Key Lab Condit Monitoring & Control Power Plant E, Beijing 102206, Peoples R China;
2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China
通讯作者单位能源与动力工程学院
推荐引用方式
GB/T 7714
Xue, Yuan,Ge, Zhihua,Yang, Lijun,et al. Peak shaving performance of coal-fired power generating unit integrated with multi-effect distillation seawater desalination[J]. APPLIED ENERGY,2019,250:175-184.
APA Xue, Yuan,Ge, Zhihua,Yang, Lijun,&Du, Xiaoze.(2019).Peak shaving performance of coal-fired power generating unit integrated with multi-effect distillation seawater desalination.APPLIED ENERGY,250,175-184.
MLA Xue, Yuan,et al."Peak shaving performance of coal-fired power generating unit integrated with multi-effect distillation seawater desalination".APPLIED ENERGY 250(2019):175-184.
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