Question
In: Mechanical Engineering
A flat surface is made up of electrically heated strips of length 1m and width 0.05m....
A flat surface is made up of electrically heated strips of
length 1m and width 0.05m. The strips, which are electrically
insulated from one another, are laid with their long sides in
contact and an airstream at 25°C flows over the surface in a
direction normal to long sides of the strips at a velocity of 65
m/s. Electrical power is supplied individually to each of the
strips such that they all have a surface temperature of 229°C.
Determine which strip requires the most power. At 400 K, k = 0.0331
W/m·K, ν = 2.610-5 m2·s, ρ = 0.883 kg/m3, Cp = 1013 J/kg·K, Pr =
0.709.
Solutions
samet mamat answered 4 months agoRelated Solutions
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