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Answer:
hi = 7026.8 W/m^2.k
Explanation:
Given data :
pressure of saturated steam = 1.2 bar
Horizontal steel pipe : inside diameter = 0.620 , outside diameter = 0.750 inches
temperature of water at entry = 60°F
temperature of water at exit = 75°F
velocity of water = 6 ft/s
<u>Calculate the Inside convective heat transfer coefficient ( hi ) </u>
mean temperature ( Tm ) = 60 + 75 / 2 = 67.5°F ≈ 292.877 K ≈ 19.727°C
next : find the properties of water at this temperature ( 19.727°C )
thermal conductivity = 0.598 w/m.k
density = 1000 kg/m^3
specific heat ( Cp ) = 4.18 KJ/kg.k
viscosity = 0.001 pa.s
velocity of water = 6 ft/s ≈ 1.8288 m/s
∴ Re ( Reynolds number ) = 28712.16
and Prandtl number ( Pr ) = (4180 * 0.001) / 0.598 = 6.989
finally<em> to determine the inside convective heat transfer coefficient we will apply the Dittos - Bolter equation</em>
hi = 7026.8 w/m^2.k
attached below is the remaining solution
Answer:
hello your question is incomplete attached below is the complete question and the detailed solution
Answer: A) 5.17 GHz
B) 1.01 GHz
Explanation:
Assuming the transistor is biased and considering the two conditions as given in A and B attached below is a detailed solution to the given problem
