论文和技术资料

In one of the screw compressor system, designed silencer was not optimal. A great challenge was the large variation in operating conditions, especially the variation of the molecular weight of the gas. There was need to optimize the silencer. This paper describes the acoustic modelling tools to optimize the acoustic performance of the silencer. Optimization steps carried out are based on the process parameters (molecular weight and speed of sound of the gas) and geometric parameters (size of silencer, thickness and length of the absorption core). For this acoustic modelling COMSOL has been used extensively. A 3-D model of the silencer has been used in the present investigation. Transmission losses and pressure pulsation reduction ratios were calculated for each case. Results are presented below.