Thermodynamic Analysis of Coupling Supercritical Carbon Dioxide Brayton Cycles
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摘要: 基于热力学第一定律,开展超临界二氧化碳（S-CO2）布雷顿循环的热力学特性研究。在设备模型构建和初始条件假设的基础上,研究系统采用再压缩循环的热力学特性和参数限制条件。针对进出口温差较大的热源系统,提出了复叠式分流循环方案,开展热力学特性分析和评价,并与再压缩循环进行定量比较,得出各自的适用对象。
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关键词:
- 超临界二氧化碳(S-CO2) /
- 布雷顿循环 /
- 热力学
Abstract: Based on the first law of thermodynamics, a thermodynamic investigation was carried out on the coupling supercritical carbon dioxide Brayton cycles. The thermodynamic behavior and parameter limitations of the recompression cycle have been analyzed for a heat source system on the basis of equipment model and assumed initial conditions. A new cycle layout, named the cascaded partial flow cycle, was proposed for a high temperature difference heat source system. The thermodynamic behavior of the cascaded partial flow cycle was analyzed and evaluated. The applicable target of the recompression cycle and the cascaded partial flow cycle were proposed based on quantitative comparisons.-
Key words:
- Supercritical carbon dioxide /
- Brayton cycle /
- Thermodynamics
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