During a cold winter day, wind at 50 km/h is blowing parallel to a 4-m-high and 10-m-long wall of a house. If the air outside is
at 0[C] and the surface temperature of the wall is 10[C], determine the rate of heat loss from that wall by convection. Assume the wall is smooth.
1 answer:
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Answer:
21.6 kw
Explanation:
Given data:
m = 50 kg/s
Inlet pressure (p1) = 2 bar
outlet pressure(p2) = 6.2 bar
suction ( h1 ) = -2.2 m
delivery ( h2 ) = 8.5 m
d1 = 200 mm = 0.2 m
d2 = 100 mm = 0.1 m
Vs of water = 0.001 m^3/kg
next we have to determine the Q value
Q = V*A
Q = 0.001 * 50 = 0.05 m^3/s
next we have to calculate the various V's
V1 = Q/A1 = = 1.59 m/s
V2 = Q/A2 = = 6.37 m/s
Determine the capacity of the electric motor
attached below is the detailed solution
