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, cp = 1.007 -5 kJ/kg-K, Pr = 0.7268, µ = 1.895 × 10 kg/m-s, Prs = Pr@ Ts = 100°C = 0.7111. Determine the rate of heat transfer. (You must provide an answer before moving on to the next part.) The rate of heat transfer is kW.
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, cp = 1.007 -5 kJ/kg-K, Pr = 0.7268, µ = 1.895 × 10 kg/m-s, Prs = Pr@ Ts = 100°C = 0.7111. Determine the rate of heat transfer. (You must provide an answer before moving on to the next part.) The rate of heat transfer is kW.
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 rate of heat transfer. (You must provide an answer before moving on to the next part.)
The rate of heat transfer is
kW.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F80f7c260-381e-459c-a1c9-46e439766b69%2F8de6ce35-bb26-4eab-9931-480ba654778d%2Ffgmvzh_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 rate of heat transfer. (You must provide an answer before moving on to the next part.)
The rate of heat transfer is
kW.
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