Required information Air is to be heated by passing it over a bank of 3-m-long tubes inside which steam is condensing at 100°C. Air approaches the tube bank in the normal direction at 20°C and 1 atm with a mean velocity of 5.2 m/s. The outer diameter of the tubes is 1.6 cm, and the tubes are arranged in-line with longitudinal and transverse pitches of SL = ST= 6 cm. There are 20 rows in the flow direction with 10 tubes in each row. Assume the air properties at mean temperature of 35°C and 1 atm. The air properties at the assumed mean temperature of 35°C and 1 atm are k= 0.02625 W/m-K, p = 1.145 kg/m³, co = 1.007 kJ/kg-K, Pr = 0.7268, µ = 1.895 × 10¬5 kg/m-s, Prs = Pr@ Ts = 100°C = 0.7111. Determine the pressure drop across the tube bank. (You must provide an answer before moving on to the next part.) The pressure drop is |Pa.

Required information Air is to be heated by passing it over a bank of 3-m-long tubes inside which steam is condensing at 100°C. Air approaches the tube bank in the normal direction at 20°C and 1 atm with a mean velocity of 5.2 m/s. The outer diameter of the tubes is 1.6 cm, and the tubes are arranged in-line with longitudinal and transverse pitches of SL = ST= 6 cm. There are 20 rows in the flow direction with 10 tubes in each row. Assume the air properties at mean temperature of 35°C and 1 atm. The air properties at the assumed mean temperature of 35°C and 1 atm are k= 0.02625 W/m-K, p = 1.145 kg/m³, co = 1.007 kJ/kg-K, Pr = 0.7268, µ = 1.895 × 10¬5 kg/m-s, Prs = Pr@ Ts = 100°C = 0.7111. Determine the pressure drop across the tube bank. (You must provide an answer before moving on to the next part.) The pressure drop is |Pa.

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 5.65P

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