| 空间闭式布雷顿太阳能热动力系统(火用)分析 |
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| 引用本文： | 陈双涛,侯予,陈良. 空间闭式布雷顿太阳能热动力系统(火用)分析[J]. 太阳能学报, 2010, 31(3) |
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| 作者姓名： | 陈双涛 侯予 陈良 |
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| 作者单位： | 1. 西安交通大学动力工程多相流国家重点实验室,西安,710049;西安交通大学能源与动力工程学院,西安,710049
2. 西安交通大学动力工程多相流国家重点实验室,西安,710049 |
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| 基金项目： | 新世纪优秀人才支持计划，长江学者和创新团队发展计划 |
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| 摘 要： | 建立了闭式布雷顿太阳能热动力(SDCBC)系统及各个主要部件的(火用)分析模型,对SDCBC系统及其主要部件进行了(火用)分析,讨论了系统的部分丰要参数对整个系统删效率的影响.结果表明,能昔转换单元中膨胀机、压缩机的效率、回热换热器的回热度对系统炯效率影响最为明显,因此在选择能量转换单元时不仅需要尽可能地提高转换效率,还要考虑各个部分互相匹配的问题.此外,在综合考虑阻力损失和重量的情况下要尽可能选择更加高效的回热换热器.
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| 关 键 词： | 太阳能热动力系统 闭式布雷顿循环 炯分析 |
EXERGY ANALYSIS OF SOLAR DYNAMIC CLOSED BRAYTON CYCLE FOR SPACE APPLICATIONS |
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| Abstract: | Exergy analysis of solar dynamic closed Brayton cycle (SDCBC) for space applications was presented in this paper.An integrated model for the system and specific models for its components were proposed.Influence of main parameters on system exergy efficiency was discussed.The results shown the efficiencies of expander, compressor, and regenerating temperature of the regenerator have significant influence on the exergy efficiency of SDCBC system.Therefore, besides the enhancement of component efficiencies, the matching among components of SDCBC system should be also taken into account.Moreover, it would be always desirable to enhance the effectiveness of recuperator within the requirements of flow resistance and system weight. |
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| Keywords: | solar dynamic system closed Brayton cycle exergy analysis |
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