Investigation of High Bearing Temperature in Centrifugal Compressor
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Suction side Journal bearing temperature increased to around 130 degC from 60 degC instantaneously. Further the temperature was decreased to 80 degC accompanied by increase in rotor vibration.(from 5 to 15 ?m p-p) •Bearing was inspected and damage to bearing pads was found. Horizontal side bearing clearance was decreased because of shrink the casing at low suction temperature.(roughly -100 degC) As countermeasure, bearing clearance was increased. After that, bearing temperature became stable.
Oda, Takashi; Hirata, Daisuke; Mohit, Goenka; Mathew, Ajay; Tasaki, Akinori (2018). Investigation of High Bearing Temperature in Centrifugal Compressor. Turbomachinery Laboratory, Texas A&M Engineering Experiment Station. Available electronically from