摘要
以120 k W有机朗肯循环系统中的向心透平设计为目标,基于多种工质进行设计方案的确定,通过热力计算确定各透平的几何尺寸、通流部件进出口气流参数、轮周效率和轴效率,并综合比较各工质透平的热力性能。结果表明,基于R245fa设计的向心透平具有较小的结构尺寸和冲击损失,较高的轮周效率和轴效率,因此确定R245fa为设计时的最佳工质。
Taking the design of 120 kW radial turbine of the Organic Rankine Cycle system as a target, design solutions are determined with various working fluids, and the geometry, inlet and outlet gas flow parameters of the passages, wheel efficiency and shaft efficiency of the radial turbines are defined by thermodynamic calculation, then compare the thermodynamic properties of different turbines with different working fluids. Results show that the radial turbine with working fluid--R245fa has a smaller structure size and loss of impact, higher wheel efficiency and shaft efficiency, so R245fa is determined as the optimal working fluid for designing.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第9期2225-2230,共6页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51306059)
华北电力大学中央高校基本业务费专项资金(2014ZD34)1978
关键词
有机朗肯循环
向心透平
热力设计
最佳工质
organic Rankine cycle
radial turbine
thermal design
optimal working fluid
