12. Find the torque and power absorbed to rotate a shaft of diameter 50 mm, at 1200 r.p.m. concen- trically within a sleeve 50.17 mm in diameter and 90 mm long, flooded with oil for which m=0.8 [Ans.1.045 Nm, 0.1313 kW] (Hint. Thickness of oil film, poise. 50-17 - 50 = 0-085 mm

12. Find the torque and power absorbed to rotate a shaft of diameter 50 mm, at 1200 r.p.m. concen- trically within a sleeve 50.17 mm in diameter and 90 mm long, flooded with oil for which m=0.8 [Ans.1.045 Nm, 0.1313 kW] (Hint. Thickness of oil film, poise. 50-17 - 50 = 0-085 mm

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.4P: 5.4 Evaluate the Stanton number for flow over a tube from the following data: , , , , .

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