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Performance and Bearing Load Analysis of a Twin Screw Air Compressor

  • W. S. Lee (a1), R. H. Ma (a2), W.F. Wu (a2), S.L. Chen (a2) and H.W. Hsia (a3)...

Abstract

To study the performance and estimate the oscillating bearing loads of a twin screw air compressor, a theoretical model is proposed in this paper. Based on the model, a computer simulation program is developed and effects of different design parameters such as rotor profile, geometric clearance, oil injected position, oil temperature, oil flow rate and other operational conditions are investigated. Output variables such as bearing loads, specific power, compression efficiency, volumetric efficiency, discharge temperature are obtained. Some of the results are then compared with experimentally measured data, and good agreements are found between the simulation results and the measured data.

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*Assistant Professor
**Graduate student
***Professor, Corresponding author
Assistant Vice President

References

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1.Bein, T. W. and Hamilton, J. F., “Computer Modeling of an Oil Flooded Single Screw Air Compressor,” Proc. of the 1982 Int. Compressor Engineering Conf.Purdue, pp. 127–134 (1982).
2.Sångfors, B., “Analytical Model of Helical Screw Machine for Analysis and Performance Prediction,” Proc. of the 1982 Int. Compressor Engineering Conf, Purdue, pp. 135–139(1982).
3.Singh, P. J. and Bowman, J. L., “Effect of Design Parameters on Oil-flooded Screw Compressor Performance,” Proc. of the 1986 Int. Compressor Engineering Conf, Purdue, pp. 71–88 (1986).
4.Xiao, D., Xiong, Z. and Yu, Y., “The Computer Simulation of Oil-flooded Refrigeration Twin-screw Compressor,” Proc. of the 1986 Int. Compressor Engineering Conf, Purdue, pp. 349–361 (1986).
5.Fujiwara, M. and Osada, Y., “Performance Analysis of an Oil-injected Screw Compressor and Its Application,” Int. J. of Refrigeration, 18, pp. 220227 (1995).
6.Adams, G. and Soedel, W., “Remarks on Oscillating Bearing Loads in Twin Screw Compressors,” Proc. of the 1992 Int. Compressor Engineering Conf, Purdue, pp. 439–448 (1992).
7.You, C. X., Fleming, J. S., Tang, Y. and Cook, G., “A Generalized Method for Calculating Oscillating Bearing Loads in Helical Twin Screw Compressors,” Machine Vibration, 4, pp. 7383 (1995).
8.Chen, S. L. and Wu, W. F., Performance Simulation and Experimental Testing of Twin Screw Compressors, Technical Report, Department of Mechanical Engineering, National Taiwan University (1996).

Keywords

Performance and Bearing Load Analysis of a Twin Screw Air Compressor

  • W. S. Lee (a1), R. H. Ma (a2), W.F. Wu (a2), S.L. Chen (a2) and H.W. Hsia (a3)...

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