A horizontal "cold air blower" consists of a fan, a cooling coil and an exit nozzle as shown.
The power of the fan is 57W and the power to the cooling coil is 0.32kW. During its passage through the blower, the air experiences a heat gain of 56W. A steady flow of air enters the fan with a negligible velocity at a pressure of 1016(m)/(b)ar , a temperature of 12deg C and a volumetric flow rate of 0.60(m^(3))/(m)in. The air exits with a velocity of 29.2(m)/(s) and a pressure of 1145(m)/(b)ar .
Treating the complete arrangement as a steady flow system, determine the exit temperature of the air.
The temperature of the air exiting the system, in deg C, correct to three significant figures is:
A horizontal "cold air blower" consists of a fan, a cooling coil and an exit nozzle as shown
Figure 2:Blower schematic
The power of the fan is 57 W and the power to the cooling coil is 0.32 kw.During its passage through the blower, the air experiences a heat gain of 56 W.A steady flow of air enters the fan with a negligible velocity at a pressure of 1016 mbar, a temperature of 12C and a volumetric flow rate of 0.60 m/min.The air exits with a velocity of
29.2m/sand a pressure of1145mbar.
Treating the complete arrangement as a steady flow system, determine the exit temperature of the air.
The temperature of the air exiting the system, in C,correct to three significant figures is