Design and Economic Analysis of Parabolic Trough Collector Power ORC System with Molten Salt Heat Storage

Abstract

建立8.5 kW熔盐蓄热太阳能驱动有机朗肯循环发电系统，对独立的太阳能蓄热发电系统进行了原理介绍、初步设计、七大地区典型城市及拉萨地区发电系统经济性分析。结果表明：拉萨作为西南地区典型城市电场投资最少，单一发电方案不可行，而通过热电联供系统不仅能够满足方案且年减排CO2 283.9 t，平均能源成本仅为0.405元kW−1∙h−1。 8.5 kW parabolic trough collector power organic Rankine cycle (ORC) system is established with molten salt heat storage system to introduce the principle, design independent solar power system and analysis economics of the power generation system in the typical cities of the seven regions and Lhasa area. The results show that Lhasa is the least expensive electric field investment in typical cities in Southwest China. The single parabolic trough collector power ORC system is not feasible, and the cogeneration system can not only meet the scheme but also reduce CO2 by 283.9 t/a, the average energy cost is only 0.45 RMB kW−1∙h−1.