Abstract ▼ AI-Helper

This paper dealt with numerical analysis of pressure pulsation of the refrigerant in a suction pipe of the compressor according to the shape of refrigerant inducing guide. The boundary conditions for acoustic analysis were obtained from experiment of the linear compressor with cavity. In the experim...

This paper dealt with numerical analysis of pressure pulsation of the refrigerant in a suction pipe of the compressor according to the shape of refrigerant inducing guide. The boundary conditions for acoustic analysis were obtained from experiment of the linear compressor with cavity. In the experiment, the pressure pulsation data of the refrigerant were measured from pressure transducers at 15 points in the suction pipe. Using the experiment data, the acoustic boundary conditions, complex phase speed and complex impedance at the end of suction pipe, for acoustic analysis were estimated. To estimate pulsating pressure trends according to the change of the inner shape of compressor, the numerical analysis were conducted over the angle change between suction pipe and refrigerant inducing guide. The change of refrigerant inducing guide could improve the efficiency of the compressor by increasing mass flow rate of refrigerant, which was investigated by the results of computational fluid dynamics(CFD). In conclusion, changing inner shape of compressor could increase efficiency of system. The pressure pulsation in a suction pipe could also be minimized at a certain angle of refrigerant-inducting guide. Using the procedure of this paper, the optimized compressor model could be designed for increasing system efficiency and reduction of pulsating pressure in suction pipe of compressor.

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