Turbine lubricating oil
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‘May I ask, for large turbine machinery, why must the lubricating oil be cooled first before being filtered? Is it possible to do it the other way around?
The lubricating oil first passes through a cooler and then through a filter, which captures impurities originating from the cooler due to maintenance, installation, or normal operation. The lubricating oil has its supply temperature controlled through heat exchange in the oil cooler, which helps to remove the heat generated by friction during lubrication. Filters are used to eliminate impurities from the lubrication system, and the cooled impurities tend to deposit more easily; by filtering them out, damage to the unit’s bearings can be prevented.