%0 Journal Article %T Safety and efficiency assessment of a solar-aided coal-fired power plant %+ Huazhong University of Science and Technology [Wuhan] (HUST) %+ Procédés, Matériaux et Energie Solaire (PROMES) %+ Tsinghua University [Beijing] (THU) %A Li, Jianlan %A Wu, Zhiyi %A Zeng, Kuo %A Flamant, Gilles %A Ding, Aosuang %A Wang, Jizhou %< avec comité de lecture %@ 0196-8904 %J Energy Conversion and Management %I Elsevier %V 150 %P 714 - 724 %8 2017-10 %D 2017 %R 10.1016/j.enconman.2017.08.049 %Z Engineering Sciences [physics] %Z Engineering Sciences [physics]/Chemical and Process EngineeringJournal articles %X Hybridizing solar energy with a coal-fired power plant has proven to be an efficient way of reducing coal consumption and discharged pollutants. In this study, solar energy was employed to heat boiler inlet feedwater through a solar high-pressure feedwater heater H0 to increase its temperature. Solar-aided feedwater heating of a N600-24.2/566/566 supercritical coal-fired power plant is discussed as a case study. An all-condition mechanism model (ACMM) of SACFPP was proposed and simulated by MATLAB/Simulink. The maximum solar energy input for the safe operation of a boiler was determined as 66,544 kW based on ACMM simulation results. Moreover, the boiler efficiency and solar-to-electricity efficiency plummeted as solar energy input increased. The solar-to-electricity efficiency decreased from 23.33% to 20.33% when the solar energy input increased from 16,636 kW to 66,544 kW (in 100%THA). The solar-to-electricity efficiency decreased from 16.76% to 13.29% when the solar energy input increased from 16,636 kW to 66,544 kW (in 35%BMCR). A high unit load corresponds to high solar-to-electricity efficiency. SACFPP had a high coal saving rate when it operated in a lower load condition. %G English %L hal-01894754 %U https://univ-perp.hal.science/hal-01894754 %~ CNRS %~ UNIV-PERP %~ PROMES