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Numerical simulation of pressure difference in cylinders of CZ60/30 marine air compressor

DUAN Yulong,HU Yihuai(Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China)  
To understand the interaction situation of the two-stage cylinders of the pressure difference air compressor and improve its working efficiency,based on the structures of the cylinder and piston of CZ60/30 marine air compressor and its working characteristics,a mathematical model about the relationship of the pressure and its difference in low and high cylinders is built,and then the simulation is done by MATLAB.According to the analysis on the simulation results,the effect of cylinder clearance height on the pressure and its difference in cylinders is analyzed,and then the pressure-time curves of low and high pressure stage cylinders are provided.The results can provide reference for the high efficient design and fault analysis of air compressor.
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