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In the event of a total blackout on a 600Mw thermal power plant, I would obviously lose my CCW to the Turbine bearings, but the DC pump would kick in and allow the machine to coast down to allow manual barring of the shaft. My worry is, how would the heat on the HIP shaft affect the bearing journals, assuming the shaft is still around the 550 degrees mark? I am considering an emergency header tank for a feed to the coolers but in all my years on power generation, I have never come across such a system.
Appreciate any feedback in advance.
Appreciate any feedback in advance.