【摘要】 <正> 一、前言 全流系统是把地热(或余热)流体(包括汽、水)全部直接地引入动力机膨胀作功,因而可以充分利用热源汽液两相的可用能,获得比闪蒸或双循环系统更高的能量利用率。研究全流动力机是全流发电技术的关键性课题。在全流动力机中,螺杆膨胀机被认为是比较有希望的二种动力机,它以较适于汽液两相等优点而日益受到重视。本文研究螺杆膨胀机性能,提出了适于汽液两相的理想螺杆膨胀机概念,建立了机组的效更多还原

【Abstract】 The performance of a helical screw expander (HSE) for low to moderate temperature en-ergy total flow power generation is studied. This paper proposes a concept of ideal HSE Cor vapor-liquid mixture and mathematic models for power and efficiency of the expander. The numerical calculations have been verified principally by the experimental results.更多还原