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Question 2. A horizontal hot air blower consists of a fan, a heating coil and an exit nozzle as shown. gure 2: Blower schematic.

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Question 2. A horizontal "hot air blower" consists of a fan, a heating coil and an exit nozzle as shown. gure 2: Blower schematic. The power of the fan is 55 W and the power to the heating coil is 1.23 kW. During its passage through the blower, the air experiences a heat loss of 51 W. A steady flow of air enters the fan with a negligible velocity at a pressure of 1014 mbar, a temperature of 22 C and a volumetric flow rate of 0.36 m/min. The air exits with a velocity of 20.5 m/s and a pressure of 1134 mbar. 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:

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To determine the exit temperature of the air from the hot air blower system we can use the first law of thermodynamics for a steady flow system which ... blur-text-image

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