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Air enters a 30-cm-diameter cooling section at 1 atm, 35 C, and 60 percent relative humidity...

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Mechanical Engineering

Air enters a 30-cm-diameter cooling section at 1 atm, 35 C, and60 percent relative humidity at 120 m/min. The air is cooled bypassing it over a cooling coil through which cold water flows. Thewater experiences a temperature rise of 8 C. The air leaves thecooling section saturated at 20 C.

(a) Determine the rate of heat transfer. Round your answer tothe nearest tenth.

     Qout = _____ kJ/min

(b) Determine the mass flow rate of the water. Round your answerto the nearest hundredth

     mcooling water = _____kg/min

(c) Determine the exit velocity of the airstream. Round youranswer to the nearest ones place.

     V2 = _____ m/min

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