Analysis and optimization of extraction performance of cogeneration unit

LIU Tie-lu; WANG Yun-cong; PU Xiao-guang; LI Hao; ZHANG Ying; XU Gang

doi:10.3969/j.issn.1004-7948.2023.11.002

Home>Articles>Analysis and optimization of extraction performance of cogeneration unit

DOI: 10.3969/j.issn.1004-7948.2023.11.002

Analysis and optimization of extraction performance of cogeneration unit

LIU Tie-lu

WANG Yun-cong

PU Xiao-guang

LI Hao

ZHANG Ying

XU Gang

Abstract：In order to optimize the operation of a two-unit cogeneration unit,the simulation model of a 2×350 MW cogeneration unit was established by Ebsilon software,and the detailed thermodynamic analysis and calculation of the system were carried out.The coal consumption of the unit under different extraction steam distribution strategies was obtained,and then the optimal extraction steam distribution strategy of the unit was obtained.The results show that when the two engines have the same electrical load,the total coal consumption is the lowest if the No.2 engine undertakes all the heating and steam supply load.The average distribution of heat supply and steam load of two engines has the highest overall coal consumption.The coal consumption difference caused by the two extraction steam distribution strategies will decrease gradually with the increase of load.

Keywords：cogeneration of heat and poweroperation optimizationextraction steam distributionthermodynamic analysis

Publication Date：2023-11-15

Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)

Pages：4( 6-9 )

Energy Conservation

ISSN：1004-7948

Year, Vol.(Issue)：2023,42(11)