【摘要】 本文对SOLRGT系统(一种新型的中低温太阳能与化石燃料互补的动力系统)进行了热力经济性分析。该系统基于化学回热循环,通过中低温太阳能品位的间接提升、与先进燃气轮机的集成,实现中低温太阳能的高效、低成本热功转换以及和化石燃料的综合梯级利用。本文将其与同等输入下的两种单输入发电系统进行对比分析,研究表明:基本工况下,SOLRGT系统的比投资为751$/kW,发电成本为0.0635$/kWh,回收期12 1年;相对同等输入下单输入发电系统发电成本下降了16.6%,充分显示其优越性。更多还原

【Abstract】 A novel low/mid-temperature solar heat-fossil fuel hybrid power system,SOLRGT,has been analyzed.Consisting of a chemically recuperated gas turbine cycle,the hybrid system integrates power generation with solar heat-driven steam generation and methane steam reforming.The system integration enables the complementary utilization of fossil fuel and solar heat,and attains their high efficiency conversion into electricity.The research results show that the specific total plant cost of SOLRGT is 751 $/kW,the cost of electricity is 0.0635 $/kWh and the payback period is 12.1 years. As compared with the single-input reference systems,the hybrid system exhibits the advantage of reduced cost of electricity by up to 17%～20%.更多还原