耦合型超临界CO2布雷顿循环热力学分析OA
Thermodynamic analysis of coupled supercritical CO2 Brayton cycle
基于超临界CO2布雷顿循环特点,得到一种耦合型超临界CO2 布雷顿循环.根据循环原理和建立的数学模型,验证该耦合型超临界CO2布雷顿循环的准确性.通过循环的热力学对比分析,获得透平入口温度、冷凝温度、透平入口压力、透平出口压力、质量分流比、预压缩压力以及再热压力对循环(火用)效率、热效率以及净功量的影响规律.在透平出口压力、分流比、预压缩压力以及再热压力对循环热效率的影响中存在最优值,分别为 7.9 MPa、0.35、8 MPa和15 MPa.
Based on the characteristics of supercritical CO2 Brayton cycle,a coupled supercritical CO2 Brayton cycle was obtained.The accuracy of the coupled supercritical CO2 Brayton cycle was verified according to the cycle principle and the mathematical model.Through thermodynamic comparison and analysis of cycles,the influence laws of turbine inlet temperature,condensing temperature,turbine inlet pressure,turbine outlet pressure,mass shunt ratio,precompression pressure and reheat pressure on cyclic thermal efficiency,thermal efficiency and net work volume were obtained.The optimal value exists in the influence of turbine outlet pressure,shunt ratio,precompression pressure and reheat pressure on cyclic thermal efficiency,they are 7.9 MPa,0.35,8 MPa and 15 MPa,respectively.
王洪利;刘浩雨;靳洛;魏哲;慕清浩
华北理工大学 冶金与能源学院,河北 唐山 063210北京华航盛世能源技术有限公司,北京 100000华北理工大学 冶金与能源学院,河北 唐山 063210华北理工大学 冶金与能源学院,河北 唐山 063210北京华航盛世能源技术有限公司,北京 100000
能源科技
布雷顿循环余热利用耦合型循环超临界CO2再压缩布雷顿循环热力学性能
Brayton cyclewaste heat utilizationcoupled cyclesupercritical CO2 recompression Brayton cyclethermodynamic performance
《化学工程》 2026 (3)
39-45,7
国家自然科学基金资助项目(51774143)中央引导地方科技发展资金项目(236Z1017G)
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