Numerical and Experimental Research on the Discharge Noise of Twin-screw Refrigeration Compressors

被引：3
|
作者：
Shen J. [1 ]
Wang R. [2 ]
Zhou M. [2 ]
Chen W. [2 ]
机构：
[1] School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang
[2] Xi'an Jiaotong University Suzhou Academy, Suzhou
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2017年 / 53卷 / 20期
关键词：
Dynamic mesh; Gas pulsation; Numerical simulation; Twin-screw compressor;
D O I：
10.3901/JME.2017.20.169
中图分类号：
学科分类号：
摘要：
A physical model for the discharge process simulation of a R22 semi-hermetic twin-screw refrigeration compressors is presented. The area change of an axial discharge orifice has been taken into consideration. The dynamic numerical simulation of discharge flow fields is carried out by the software of Fluent. Then the discharge noise spectrum of the compressor is obtained by making the Fluent simulation results as the boundary conditions of LMS. An experimental study is conducted to verify the model's accuracy. A structural optimization of the compressor's discharge end is performed by the analysis of simulation and experimental results. It is concluded that the pressure pulsation in the discharge orifice is big and it is attenuated in the discharge cavity. The sleeking of discharge flow passageway and opening of radial discharge orifice is good for the whole compressor and can reduce the pressure loss significantly. Both simulation and experimental results show that the optimization reduces the noise of the compressor, indicating that the method in this paper can applied for the optimization design of twin-screw refrigeration compressors. © 2017 Journal of Mechanical Engineering.
引用
收藏
页码：169 / 175
页数：6
相关论文
共 18 条
  • [1] Wu R., Tran V., Dynamic response prediction of a twin-screw compressor with gas-induced cyclic loads based on multi-body dynamics, International Journal of Refrigeration, 65, 3, pp. 111-128, (2016)
  • [2] Jin C., Fan L., Qiu Q., Et al., Noise reduction research of semi-hermetic twin screw refrigeration compressors, Noise and Vibration Control, 37, 4, pp. 37-38, (2003)
  • [3] Pan G., Yang B., Zhou X., Et al., Design of intake and exhaust silencer device for screw compressor, Process Equipment & Piping, 51, 1, pp. 67-70, (2014)
  • [4] Fujiwara A., Sakurai N., Experimental analysis of screw compressor noise and vibration, International Compressor Engineering Conference, pp. 566-582, (1986)
  • [5] Andrews R., Jons J.D., Noise source identification in semi-hermetic twin-screw compressors, International Compressor Engineering Conference, pp. 825-834, (1990)
  • [6] Rane S., Kovacevic A., Stosic N., Et al., Deforming grids generation and CFD analysis of ariable geometry screw compressors, Computers & Fluids, 99, 1, pp. 124-141, (2014)
  • [7] Wu H., Peng X., Xing Z., Et al., Experimental study on the performance characterristics of screw refrigeration compressor under part load conditions, Journal of Mechanical Engineering, 40, 7, pp. 195-198, (2004)
  • [8] Chen W., Xing Z., Tang H., Et al., Geometrical characteristics of screw refrigeration compressor under part-load conditions, Journal of Xi'an Jiaotong University, 45, 4, pp. 126-132, (2011)
  • [9] Wu B., Zhang J., Yang J., Et al., Calculation method for edge shape of forming wheel for screw rotors machining, Journal of Mechanical Engineering, 48, 19, pp. 192-198, (2012)
  • [10] Xiong W., Feng Q., Rotor intervention study of twin-screw compressors based on the three-dimensional shape, Chinese Journal of Mechanical Engineering, 41, 6, pp. 55-59, (2005)
12