There is a season facing wall of( 203mm)hollow concrete blocks with a cement-sand dry of (2.5w/m^2) latitude (40c). Exterior design conditions are (34.4C) dry (25C) wet with daily range of (11.1C) and interior design conditions are (25.6C) e and (18.3C) wet Calculated load Cooling at 3 pm, knowing that its area is by( 71.1 m ^ 2)

There is a season facing wall of( 203mm)hollow concrete blocks with a cement-sand dry of (2.5w/m^2) latitude (40c). Exterior design conditions are (34.4C) dry (25C) wet with daily range of (11.1C) and interior design conditions are (25.6C) e and (18.3C) wet Calculated load Cooling at 3 pm, knowing that its area is by( 71.1 m ^ 2)

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 5.43P: 5.43 A refrigeration truck is traveling at 130 km/h on a desert highway where the air temperature...

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5.43 A refrigeration truck is traveling at 130 km/h on a desert highway where the air temperature is . The body of the truck is idealized as a rectangular box 3 m wide, 2.1 m high, and 6 m long, at a surface temperature . Assume that (1) the heat transfer from the front and back of the truck is neglected, (2) the stream does not separate from the surface, and (3) the boundary layer is turbulent over the whole surface. Calculate the required cooling rate of the refrigeration unit.