摘要
分析槽式太阳能光热供蒸汽系统工程设计关键技术要点,并结合具体工程通过SAM系统建模分析,槽式太阳能光热供蒸汽不带熔盐储热时回收期最短,每吨蒸汽成本最低,但用能安全得不到一定保障。当带熔盐储热时采用储能小时数为8 h/day,在较高辐射量的条件下,保证削峰辐射能量浪费降到最低,能够充分利用太阳能资源,根据模型计算每吨蒸汽成本(25年)约为86元/t,投资静态回收期约为10.14 a,此方案回收期和每吨蒸汽成本综合最优。重点讨论了站址太阳能资源评估及设计点DNI、聚光集热镜场面积、储热小时数等因素对光热供蒸汽项目的影响,通过技术方案比选确定槽式太阳能光热供蒸汽整体最优设计方案。
The article analyzes the key technical points of the engineering design of the trough solar thermal steam supply system,and combines the specific project through the SAM system modeling analysis,the trough solar photothermal steam supply system has the shortest recovery period without molten salt heat storage,and the lowest cost per ton of steam,but the safety of energy use is not guaranteed.When heat storage with molten salt is carried out,the energy storage hours are 8 h/day.Under the condition of high radiation,the waste of peak shaving radiation energy is guaranteed to be minimized,and solar energy resources can be fully utilized.According to the model,the cost per ton of steam(25 years)is about 86 yuan/ton,and the static payback period of investment is about 10.14 years.The payback period and the cost per ton of steam in this scheme are the best.This paper focuses on the solar energy resources evaluation of the site and the influences of design point DNI,field area of condenser mirror,heat storage hours and other factors on the project of solar thermal steam supply,and determines the overall optimal design scheme of trough solar thermal steam supply through the comparison of technical schemes.
作者
沈惠冲
SHEN Huichong(Shanghai Electric Engineering Design Co.,Ltd.)
出处
《上海节能》
2023年第2期195-200,共6页
Shanghai Energy Saving
关键词
槽式光热
太阳能
供蒸汽
工程设计
Trough Photothermal
Solar Energy
Steam Supply
Engineering Design
