【摘要】 本文提出了新的CO₂近零排放中低温太阳能化石能源互补系统（ZE-SOLRGT）并对其进行了热力性能分析。该系统在SOLRGT系统基础上引入纯氧燃烧,构成以水为工质的准联合循环。中低温太阳能集热与水蒸发过程相集成,改善了换热匹配,增大了工质流量,提高了输出功与热效率;并通过热化学反应品位得以提升,最终借由燃机循环实现高效热功转换。系统以低能耗实现了CO₂近零排放。研究表明ZF-SOLRGT相对SOLRGT尾气排放（火用）损减少了50.5%,热效率提高了3.6%,实现了CO₂分离与能源高效利用的一体化集成。更多还原

【Abstract】 A novel zero CO₂ emission low/mid-temperature solar heat-fossil fuel hybrid system, ZE-SOLRGT,has been proposed and analyzed.Based on the SOLRGT system and oxy-fuel combustion, ZE-SOLRGT is a quasi-combined cycle with water being the working fluid.The integration of solar-driven steam production helps improve both the chemical and thermal recuperation in the system,and thus contributes to system work output and efficiency enhancement.The low-mid temperature solar heat is upgraded partially into chemical exergy via the thermo-chemical reaction and achieves high efficiency conversion in the advanced power system.CO₂ capture is accomplished with oxy-fuel combustion with low energy penalty.Research shows that compared with SOLRGT system, the exegy loss of flue gas in ZE-SOLRGT decreases by 50.5%,and the thermal efficiency increases by 3.6%-points.ZE-SOLRGT achieves good integration of CO₂ capture and effective energy utilization.更多还原