离心式叶片膨胀机性能影响因素与适应性研究  

Study on Performance Influence Factors and Adaptability of Centrifugal Blade Expander

作　　者：孙永亮 刘鑫 张成强 贾春辉[3] 韩永强[3] 孔祥花 SUN Yongliang;LIU Xin;ZHANG Chengqiang;JIA Chunhui;HAN Yongqiang;KONG Xianghua(State Key Laboratory of Engine Reliability,Weifang 261061,China;Weichai Power Co.,Ltd.,Weifang 261061,China;State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,China)

机构地区：[1]内燃机可靠性国家重点实验室,山东潍坊261061 [2]潍柴动力股份有限公司,山东潍坊261061 [3]吉林大学汽车仿真与控制国家重点实验室,吉林长春130025

出　　处：《机械制造与自动化》2023年第3期70-73,95,共5页Machine Building & Automation

摘　　要：建立朗肯循环余能回收系统的离心式叶片膨胀机GT-power的仿真模型,研究膨胀机进口工质的温度和压力对膨胀机性能和发动机经济性的影响。通过分析表明:膨胀机入口工质压力越高,膨胀机的输出功率和效率越高。通过对排气温度和质量流量计算换热器的工质质量流量的分析可知,在中高负荷下尾气能量可以满足驱动多个膨胀机的需求。The GT-power simulation model of centrifugal blade expander in Rankine cycle residual energy recovery system was built,and the influence on the expander performance and engine fuel economy exerted by the inlet temperature and pressure of the expander were studied.Resech results show that the higher the working fluid pressure in the inlet of expander is,the higher the output power and efficiency of the expander are.By analyzing the mass flow rate of working fluid in heat exchanger calculated by exhaust temperature and mass flow of engine,it is found that the exhaust energy in high load can drive multiple expander.

关 键 词：有机朗肯循环 膨胀机 GT-POWER 性能分析 工况适应性 

分 类 号：U464[机械工程—车辆工程]