| 中低温太阳能品位间接提升及系统集成 |
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| 引用本文： | 张娜.中低温太阳能品位间接提升及系统集成[J].工程热物理学报,2010(6). |
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| 作者姓名： | 张娜 |
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| 作者单位： | 中国科学院工程热物理研究所; |
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| 基金项目： | 国家自然科学基金资助项目(No.50836005;No.50976114) |
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| 摘 要： | 本文提出了中低温太阳热能品位间接提升的概念、方法和系统集成,其核心是热集成和热化学转换的有机结合。在所提出的太阳能和化石能源综合互补的化学回热循环系统(SOLRGT)中,中低温太阳热能首先提供蒸汽蒸发潜热从而转化为蒸汽内能;其次通过蒸汽参与重整反应进一步转化为合成气化学能,实现品位提升;最后得以在高效的燃气轮机系统中实现热功转换。由于太阳能的引入,燃气轮机透平排气余热回收部分的热匹配得到极大改善,并减少了化石能源消耗;同时,蒸汽产率的增加有助于增进系统化学回热和物理回热收益。系统中太阳能热转功净效率可达26.5%;和常规化学回热循环相比,化石能源节约率可达20%～30%,实现相应数量的CO_2减排,系统中实现了中低温太阳能的高效热功转换和与化石燃料的梯级互补。
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| 关 键 词： | 能量品位间接提升 太阳热能 多能源互补 化学回热循环 |
THE INDIRECT UPGRADING OF LOW/MID TEMPERATURE SOLAR HEAT AND ITS SYSTEM INTEGRATION |
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| ZHANG Na.THE INDIRECT UPGRADING OF LOW/MID TEMPERATURE SOLAR HEAT AND ITS SYSTEM INTEGRATION[J].Journal of Engineering Thermophysics,2010(6). |
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| Authors: | ZHANG Na |
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| Institution: | ZHANG Na (Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | This paper presents the concept of indirect upgrading of low/mid level solar heat,and demonstrates the indirect upgrading of solar heat and its high efficiency conversion into electricity with a novel solar hybrid system integration.The proposed hybrid power system consists of an intercooled chemically recuperated gas turbine(CRGT) cycle,in which the low/mid temperature solar thermal energy is first transformed into the latent heat of vapor supplied to a reformer and then via the reforming reactions to the ... |
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| Keywords: | indirect energy level upgrading solar heat hybrid power system chemically recuperated gas turbine |
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