会议论文详细信息
3rd International Conference on Energy Engineering and Environmental Protection
Theoretical investigation on heat-electricity decoupling technology of low-pressure steam turbine renovation for CHPs
能源学;生态环境科学
Hu, Qingbo^1 ; Wang, Kun^1 ; Zhang, Li^1 ; Zhou, Liansheng^1 ; Chen, Rong^1 ; Wang, Shan^2 ; Zhang, Yu^1 ; Li, Guohao^1
Tianjin Electric Power Science and Research Institute, Tianjin
300384, China^1
State Key Laboratory of Multiphase Flow in Power Engineering, Xi'An Jiao Tong University, Xi'an
710049, China^2
关键词: Coal consumption;    Combined heat and power units;    Electricity load;    Installed capacity;    Operation mode;    Peaking capacity;    Renewable Power;    Theoretical investigations;   
Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/227/4/042043/pdf
DOI  :  10.1088/1755-1315/227/4/042043
学科分类:环境科学(综合)
来源: IOP
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【 摘 要 】

The power grid peaking capacity is insufficient due to the increasing installed capacity of renewable power. Moreover, it is also restricted by the operation mode of combined heat and power units (CHPs), the minimum electricity loads of which are determined by the heat load. It is significant to study the heat-electricity decoupling technologies for CHPs. Therefore, the low-pressure steam turbine renovation technology is studied in this paper with a 300MW unit as reference case. Results show that the minimum electric load rate and the coal consumption are decreased, and the heat-electricity ratio is increased significantly for CHP with low-pressure steam turbine renovation. When the heat load is 1200 GJ/h, the minimum electric load rate and coal consumption with low-pressure steam turbine renovation can be reduced by 32.4 and 30.9 % respectively. The heat-electricity ratio can be increased by 68.8 % after renovation of low-pressure steam turbine.

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