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中文摘要：
探索并提出低温太阳热能与乙醇一氧化镍化学链燃烧相结合的新颖能量动力系统。该系统利用中低温太阳热能提供乙醇和氧化镍反应热，将低温太阳能转换为高品位化学能储存在固体金属氧化物中。基于图像[火用]分析方法，明确地指出乙醇化学链燃烧能量释放过程燃烧[火用]损失减小和低温太阳热品位提升的机理。本文对新循环进行了分析，相比常规联合循环，新系统热效率提高约8个百分点，同时可以实现CO2无能耗分离。
英文摘要：
In this paper, a new solar hybrid gas turbine cycle integrating ethanol-fueled chemicallooping combustion （CLC） has been proposed, and the system was investigated with the aid of the Energy-Utilization Diagram （EUD）. Chemical-looping combustion consists of two successive reactions： first, ethanol fuel is oxidized by metal oxide （NiO） as an oxygen carrier （reduction of metal oxide）; secondly, the reduced metal （Ni） is successively oxidized by combustion air （the oxidation of metal）. The reduction of NiO with ethanol requires a relative low-grade thermal energy at 150-200℃. Then, concentrated solar thermal energy at approximately 200-300℃ can be utilized to provide the process heat for this reaction. The integration of solar thermal energy and CLC could make the exergy efficiency and the net solar-to-electric efficiency of the system more than 54% and 28% at a turbine inlet temperature （TIT） of 1288℃, respectively. The promising results obtained here indicate that this novel gas turbine cycle with ethanol-fueled chemical-looping combustion could provide a promising approach of both efficient use of alternative fuel and low-temperature solar thermal and offer a technical probability of combining the chemical-looping combustion with inherent CO2 capture for the alternative fuel.
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