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以热力学第一、第二定律为基础,对抛物面槽式集热器进行热效率和火用效率分析,并以LS-2典型槽式集热器热性能测试结果为依据,分析不同太阳辐照及工作温度条件下对应的火用效率;以此结果作为指导,对以等面积槽式太阳能集热场作为辅助热源替代燃煤发电机组不同回热抽汽集成方式的热力性能进行分析比较,得到此类集热场作为辅助热源与燃煤机组回热系统集成的最佳方案。
Based on the first and second laws of thermodynamics, thermal efficiency and exergy efficiency of parabolic trough collector are analyzed. Based on the thermal performance of LS-2 typical trough collector, the effects of different solar radiation and And the corresponding exergy efficiency under operating temperature conditions. Based on these results, the thermodynamic performance of the integrated heat recovery extraction with different area of trough solar thermal field as an auxiliary heat source instead of coal-fired generator sets is analyzed and compared Class collector field as an auxiliary heat source and coal-fired unit heat recovery system integration best solution.