天津工业大学学报
天津工業大學學報
천진공업대학학보
JOURNAL OF TIANJIN POLYTECHNIC UNIVERSITY
2014年
5期
74-79
,共6页
微型有机朗肯循环热电系统%动力透平%仿真模拟%动能效率
微型有機朗肯循環熱電繫統%動力透平%倣真模擬%動能效率
미형유궤랑긍순배열전계통%동력투평%방진모의%동능효솔
micro organic rankine cycle thermoelectric system%powerturbine%simulation%aerodynamic efficiency
针对微型有机朗肯循环(organic rankine cycle,简称 ORC)热电系统在热力循环参数方面与传统系统的不同,设计了一种小型动力透平.通过利用 CFD 软件进行仿真模拟,分析了叶轮流场内气体的压缩量、分子流速以及在动叶表面压力分布的变化情况,其变化趋势均与设计预估相符;提出了一种针对转子动能效率的求解方法,经验证设计方案具有可行性,透平气动性能良好,在稳定工况下动能效率可达到73.86%.
針對微型有機朗肯循環(organic rankine cycle,簡稱 ORC)熱電繫統在熱力循環參數方麵與傳統繫統的不同,設計瞭一種小型動力透平.通過利用 CFD 軟件進行倣真模擬,分析瞭葉輪流場內氣體的壓縮量、分子流速以及在動葉錶麵壓力分佈的變化情況,其變化趨勢均與設計預估相符;提齣瞭一種針對轉子動能效率的求解方法,經驗證設計方案具有可行性,透平氣動性能良好,在穩定工況下動能效率可達到73.86%.
침대미형유궤랑긍순배(organic rankine cycle,간칭 ORC)열전계통재열력순배삼수방면여전통계통적불동,설계료일충소형동력투평.통과이용 CFD 연건진행방진모의,분석료협륜류장내기체적압축량、분자류속이급재동협표면압력분포적변화정황,기변화추세균여설계예고상부;제출료일충침대전자동능효솔적구해방법,경험증설계방안구유가행성,투평기동성능량호,재은정공황하동능효솔가체도73.86%.
A small powerturbine for micro organic rankine cycle (ORC) thermoelectric system is designed according to the differences of thermodynamic cycle parameters from traditional systems. The compression, velocity and pressure on the turbine rotor blades in flow field are analyzed by using the CFD simulation, and a method of calculating the average aerodynamic efficiency of turbine rotor blades is proposed. Thus, the result is verified that the design is feasible, and the aerodynamic performances of the turbine is great. The aerodynamic efficiency of the turbine can reach 73.86% in a stable working-condition.