Study of noise and vibration signal for a radial flow pump during performance test

This paper aims to provide a possible link of noise and vibration readings to the condition of pump operation. For this purpose, the dimensions of a radial flow pump impeller were determined using a flow rate of 0.031 m3/s, total head of 25 m and speed of 1500 rpm as the design data. Performance tests were conducted for this test pump with/without cavitation for different speeds. Noise and vibration signals were obtained and the individual critical frequency/critical frequency band were identified. From the results, it was concluded that the noise and vibration signature from the pump have a relationship with the flow inside the pump.