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[noobeng]

Hi

 

I'm struggling to figure out how to estimate the temperature of a agitator shaft entering a gear box. Please see attached pic:

120L vessel - 220 C
160mm high agitator shaft inside the vessel (same as liquid height).

Double mechanical seal

Height of shaft outside the vessel = 200mm

shaft diameter = 40mm

Room temperature = 20 C

Shaft inside the gearbox = 70mm
SS 316L shaft - Thermal conductivity ~18.5 w/m.K

 

I'm very rusty with my heat transfer calculations, currently trying to remind myself but some guidance would be highly appreciated.

Thanks

Attached Files

•  IMG_20190124_115222.jpg   61.73KB   2 downloads

Edited by noobeng, 24 January 2019 - 07:00 AM.