;Muffler cover spout position of a rotary compressor has a tremendous impact on the structural vibration and noise radiation. In this thesis, both numerical and experimental investigations are carried to study the effect of muffler cover spout position. From the numerical simulation, the design variations can be optimized. The experimental validations indicate that sound pressure of the optimized muffler position can be reduced by 3dB(A) in the frequency range of 20Hz-20000 Hz and 1200 to 7200 RPM of the rotary compressor. In the low frequency range of 20Hz-1600 Hz, the sound pressure reduction is 4dB(A).
