摘要
以供热机组为例,利用抛物面槽式集热技术提出多种太阳能与燃煤机组集成方案。并定义太阳能热电转换效率、火用效率等评价指标,应用锅炉变工况和汽轮机变工况热力计算理论,对不同方案进行热经济性能分析。结果表明:集成方案不同,系统的热经济性能不同;太阳能加热循环工质参数越高,集成方案的热经济性能越好。最后进行简单成本分析。为太阳能与燃煤机组集成方案的选取与实施提供了一定科学依据。
Several models on cogeneration integrated with solar heating system were put forward by parabolic trough solar collector technology. Based on the thermodynamic calculation methods of both bolier and turbine, thermal efficiency anylasis on different models was carried out, combined with thermal ecnomy indexes defined such as heat - to- electricity efficiency and exergy efficiency and so on. The results show that the thermal performance is different in different integrated models. The higher the temperature of the working fluid heated by collecter is, the higher the efficiency of the integrated system is. Finally, the anylasis of unit electricity generation cost was given, which can provide a certain scientific decision basis for the choosing and implying of integrated models on generation system with solar heating system.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2009年第1期69-75,共7页
Journal of North China Electric Power University：Natural Science Edition
基金
国家自然科学基金资助项目(50776028
50606010)
关键词
太阳能
集成方案
热电转换效率
煤耗率
热经济性
solar energy
integrated model
heat - to- electricity efficiency
standard coal consumption rate
thermal efficiency
