A tube with a square-edged inlet configuration is subjected to uniform wall heat flux of 8 kW/m
Question:
A tube with a square-edged inlet configuration is subjected to uniform wall heat flux of 8 kW/m2. The tube has an inside diameter of 0.622 in and a flow rate of 2.16 gpm. The liquid flowing inside the tube is ethylene glycol-distilled water mixture with a mass fraction of 2.27. Determine the friction coefficient at a location along the tube where the Grashof number is Gr = 35,450. The physical properties of the ethylene glycol-distilled water mixture at the location of interest are Pr = 13.8, v = 18.4 × 10-6 ft2/s, and μb/μs = 1.12. Then recalculate the fully developed friction coefficient if the volume flow rate is increased by 50 percent while the rest of the parameters remain unchanged.
Step by Step Answer:
Heat And Mass Transfer Fundamentals And Applications
ISBN: 9780073398181
5th Edition
Authors: Yunus Cengel, Afshin Ghajar