超临界co2二元混合物Brayton循环/有机朗肯循环:热力学参数分析

International Conference on Mechatronics Engineering and Artificial Intelligence Pub Date : 2023-02-28 DOI:10.1117/12.2672656

Di Xia, Jianjun Xiong, Minghong Zhu, Qi Chen

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引用次数: 0

摘要

本文提出了一种新型的封闭Brayton循环，将超临界CO2或CO2/氙混合物作为工作流体与ORC相结合。通过参数化研究，评价了sCO2压力比、涡轮入口温度、蒸发温度等关键参数对组合系统性能的影响。结果表明，CO2/氙混合气能够提高组合系统的热力性能，其火用效率最高，达到58.80%。同时，CO2/氙混合气的效率和功率较低。

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The combined supercritical CO2-based binary mixture Brayton cycle/organic Rankine cycle: a thermodynamic parametric analysis

A novel closed Brayton cycle is proposed that integrates a supercritical CO2 or CO2/xenon mixture as working fluid with the ORC in this paper.. The parametric study is performed to evaluate the impacts of some key parameters on the performance of the combined system, including the pressure ratio in sCO2, inlet temperature of turbine1 and evaporation temperature Results indicate that CO2/xenon mixture can improve the thermodynamic performance of the combined system, which brings the highest exergy efficiency of 58.80%. At the same time, CO2/xenon mixture presents lower efficiency and power.

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International Conference on Mechatronics Engineering and Artificial Intelligence

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