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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![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 S, = 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/m, cp= 1.007
kJ/kg-K, Pr = 0.7268, µ = 1.895 × 10¬5 kg/m-s, Prs = Pra 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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80f7c260-381e-459c-a1c9-46e439766b69%2F818e47dc-a00b-4761-a1b2-f53e3482e075%2F77cdhaq_processed.png&w=3840&q=75)
Transcribed Image Text: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 S, = 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/m, cp= 1.007
kJ/kg-K, Pr = 0.7268, µ = 1.895 × 10¬5 kg/m-s, Prs = Pra 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.
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