Thermo-economic Optimization of Solar–Coal Hybrid Systems☆

摘要: Abstract In this paper, an economic optimization of the solar multiple for solar-coal hybrid systems was presented. The heat at approximately 300 °C used to preheat feed water before entering boiler in typical coal-fired power plants. Three different unit scale plants have been considered, with parameters block and field sizes. Thermal performance each plant has featured, both design off-design conditions under climatic Shizuishan City. assessments were then performed. costs payback period configuration steam extraction replaced compared, using well-established cost-estimating methodology. levelized cost energy (LCOE) case is calculated, yielding a minimum LCOE value certain within range considered.