Performance analysis of linear Fresnel solar assisted coal-fired power generation system
SUN Xinqiang
Abstract：To alleviate the environmental problems caused by industrialization and reduce the coal consumption of thermal power units,the linear Fresnel solar thermal system equipped with molten salt heat storage devices is coupled into the coal-fired units,and the designed input solar load is 50 MW.The simulation model is built through the visual thermodynamic system modeling software(Ebsilon),and the energy analysis,exergy analysis and environmental analysis of the system are carried out based on thermodynamic laws.The results show that under the 75%THA operating condition,all indicators reach the optimum.The thermal efficiency and exergy efficiency of the complementary system reach the highest,which are 46.01%and 43.71%respectively.The standard coal consumption is reduced by 18.6 g/kWh compared with the original coal-fired unit,and the annual cumulative coal savings reach 18 403 t.
Keywords：linear Fresnel solarultrasupercritical coal-fired power generation systemthermal performance analysissolar-assisted power generation
Publication Date：2025-05-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 21-24 )