Question Three: When 0.6 kg of water per minute is passed through a tube of 2 cm diameter, it is found to be heated from 20 °C to 60 °c. The heating is achieved by condensing steam on the surface of the tube and subsequently the surface temperature of the tube is maintained at 90 "C. Determine the length of the tube required for fully developed flow. The properties of water at the bulk mean temperature are: p = 995 kg /m k = 0.628 W/m'.k v = 0.657 x 10 m/s Pr = 4.34 Cp 4178 J/kg.k

Question Three: When 0.6 kg of water per minute is passed through a tube of 2 cm diameter, it is found to be heated from 20 °C to 60 °c. The heating is achieved by condensing steam on the surface of the tube and subsequently the surface temperature of the tube is maintained at 90 "C. Determine the length of the tube required for fully developed flow. The properties of water at the bulk mean temperature are: p = 995 kg /m k = 0.628 W/m'.k v = 0.657 x 10 m/s Pr = 4.34 Cp 4178 J/kg.k

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 5.46P

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