A 6-cm-diameter shaft rotates at 3000 rpm in a 20-cm-long bearing with a uniform clearance of 0.2
Question:
A 6-cm-diameter shaft rotates at 3000 rpm in a 20-cm-long bearing with a uniform clearance of 0.2 mm. At steady operating conditions, both the bearing and the shaft in the vicinity of the oil gap are at 50°C, and the viscosity and thermal conductivity of lubricating oil are 0.05 N·s/m2 and 0.17 W/m · K. By simplifying and solving the continuity, momentum, and energy equations, determine
(a) The maximum temperature of oil,
(b) The rates of heat transfer to the bearing and the shaft,
(c) The mechanical power wasted by the viscous dissipation in the oil.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar
Question Posted: