Off-design performance of concentrated solar heat and coal double-source boiler power generation with thermocline energy storage

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• 作者：Maolong Zhang^a ; ^c ; Chao Xu^a ; Xiaoze Du^a ; ^{duxz@ncepu.edu.cn} ; Muhammad Amjad^c ; ^a ; Dongsheng Wen^b ; ^c ; ^{D.Wen@leeds.ac.uk}
• 关键词：Concentrated solar heat and coal double-source boiler ; Supercritical power generation ; System integration ; Off-design performance
• 刊名：Applied Energy
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：189
• 期：Complete
• 页码：697-710
• 全文大小：5065 K
• 卷排序：189

文摘

The off-design performance of a dual heat source power unit (solar + coal) is studied. A whole-system model is established and two integration schemes are studied. Coal consumption can be reduced by >9 × 104 ton/yr for a 660 MW power generation unit. Annual solar efficiency can vary from 17.7 to 20.4% depending on the integration scheme. Increasing heat storage volume decreases discharging efficiency.