OALib Journal期刊
ISSN: 2333-9721
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光?煤互补复合发电系统综合性能分析
, PP. 1-6
Keywords: 扩容蒸发式,槽式,太阳能,蒸汽发生系统,光?煤互补复合发电系统,汽轮机,热力性能,经济性
Abstract:
将扩容蒸发式槽式太阳能蒸汽发生系统与600mw燃煤机组联合,构建了光?煤互补复合发电系统,建立了其变工况计算模型及技术经济评价模型,从太阳能侧、汽轮机侧及复合发电系统3方面进行了热力性能分析及技术经济性评估。结果表明,光?煤互补复合发电系统具有显著的节能减排效果,系统产生的太阳能蒸汽取代汽轮机第1段抽汽时效果最为明显,太阳能侧各指标随取代抽汽段数增大呈阶段性下降趋势,太阳能到电能的转换效率最高为23.5%;各集成模式下的单值发电成本相差不大,平均为0.19元/(kw?h);从净现值判断取代第1段抽汽是较好的选择,从净现值率、盈利能力判断取代第2段抽汽是较好的选择。
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