Example 3: A condenser using steam from the exhaust of a turbine at a pressure of 4 in Hg abs is to be used to heat 25000 Ib/h of seawater (Cp = 0.95 Btu/lb °F) from 60 °F to 110-°F. The condenser is to be sized for one shell pass and four tube passes; with 60 parallel tube of 0.995 in ID and 1.125 in OD brass tubing (k = 60 Btu/h ft °F). For the clean exchanger the average heat transfer coefficients at the steam and water-sides are 600 and 300 Btu/h fr’, respectively. Calculate the tube length required for long-term service. The fouling factors are 0.0005 h fr °F/Btu for both sides of the tubes.

Example 3: A condenser using steam from the exhaust of a turbine at a pressure of 4 in Hg abs is to be used to heat 25000 Ib/h of seawater (Cp = 0.95 Btu/lb °F) from 60 °F to 110-°F. The condenser is to be sized for one shell pass and four tube passes; with 60 parallel tube of 0.995 in ID and 1.125 in OD brass tubing (k = 60 Btu/h ft °F). For the clean exchanger the average heat transfer coefficients at the steam and water-sides are 600 and 300 Btu/h fr’, respectively. Calculate the tube length required for long-term service. The fouling factors are 0.0005 h fr °F/Btu for both sides of the tubes.

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.

Chapter10: Heat Exchangers

Section: Chapter Questions

Problem 10.6P: Mot water is used to heat air in a double-pipe heat exchanger as shown in the following sketch. If...

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