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A finned-tube exchanger is used to heat 2.36 m3/s of air (specific heat of 1006 J/kg C) at 1 atm from 15.55 to 29.44°C. Hot water enters the tubes at 82.22°C and the air flows across the tubes, producing an average overall heat transfer coefficient of 227 W/m2C. The total surface area of the exchanger is 9.29m2. Calculate the heat transfer rate (kw) and the exit water temperature.
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A finned-tube exchanger is used to heat 2.36 m3/s of air (specific heat of 1006 J/kg C) at 1 atm from 15.55 to 29.44°C. Hot water enters the tubes at 82.22°C and the air flows across the tubes, producing an average overall heat transfer coefficient of 227 W/m2C. The total surface area of the exchanger is 9.29m2. Calculate the heat transfer rate (kw) and the exit water temperature.
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