双螺杆制冷压缩机工作过程的数值模拟

被引:16
作者
黄浩 [1 ,2 ]
吴华根 [1 ]
应雯 [1 ]
张倍毓 [1 ]
林侃隆 [1 ]
熊保顺 [1 ]
机构
[1] 西安交通大学能源与动力工程学院
[2] 压缩机技术国家重点实验室
关键词
双螺杆制冷压缩机; CFD; 数值模拟; 热力学性能; P-V图;
D O I
暂无
中图分类号
TB652 [压缩机];
学科分类号
082805 [农业机械化与装备工程];
摘要
双螺杆制冷压缩机由于其独特的优势已被广泛应用,但由于其复杂的转子结构及型线设计,对该类压缩机的整体性能的预测一般采用一维数值模拟或经验方式得到,但是该类方法无法获得压缩机内部流体压力场和温度场的分布情况。根据试验用螺杆压缩机建立了三维模型,利用结构化动网格技术,通过CFD软件对双螺杆压缩机的内部流场进行了三维数值模拟,分析了流体在压缩机内部的流动及热力学参数分布状况,得到了压缩机内部压力场、温度场和速度场的分布规律。将三维数值模拟得到的P-V指示图及压缩机宏观性能参数与试验结果进行对比分析,发现模拟结果与试验数据基本一致,部分负荷时误差较大,误差最大的是绝热效率,为2.58%。数值模拟能够准确预测双螺杆压缩机的性能,并为压缩机设计提供了新的方法。
引用
收藏
页码:197 / 202
页数:6
相关论文
共 9 条
[1]
Use of CFD to predict trapped gas excitation as source of vibration and noise in screw compressors.[J].James Willie.IOP Conference Series: Materials Science and Engineering.2017, 1
[2]
CFD simulation of a screw compressor with oil injection.[J].Hui Ding;Yu Jiang.IOP Conference Series: Materials Science and Engineering.2017, 1
[3]
Application of numerical grid generation for improved CFD analysis of multiphase screw machines.[J].S Rane;A Kovačević.IOP Conference Series: Materials Science and Engineering.2017, 1
[4]
Experimental study of the axial force on the rotors in a twin-screw refrigeration compressor.[J].Feng Hou;Zhaorui Zhao;Zhiqiang Yu;Ziwen Xing.International Journal of Refrigeration.2017,
[5]
Algebraic generation of single domain computational grid for twin screw machines. Part I. Implementation.[J].Sham Rane;Ahmed Kovacevic.Advances in Engineering Software.2017,
[6]
A semi-empirical method for assessing the performance of an open-drive screw refrigeration compressor.[J].Antonio Giuffrida.Applied Thermal Engineering.2016,
[7]
Deforming grid generation and CFD analysis of variable geometry screw compressors.[J].Sham Rane;Ahmed Kovacevic;Nikola Stosic;Madhulika Kethidi.Computers and Fluids.2014,
[8]
Geometrical abstraction of screw compressors for thermodynamic optimization.[J].Hauser; J;Brümmer; A.EN.2011, 6
[9]
Theoretical and experimental study on indicator diagram of twin screw refrigeration compressor [J].
Wu, HG ;
Xing, ZW ;
Shu, PC .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2004, 27 (04) :331-338