Question
A bank of tubes is used in a commercial heat pump to heat air at 1...
A bank of tubes is used in a commercial heat pump to heat air at 1 atm and 15 °C. The bank of tubes consists of 80 tubes of 9.52 mm in diameter in an arrangement alternated with 10 rows, 2.5m deep, 1.19 cm longitudinal weight and 1.43 cm cross section. The air enters with a speed of 6.8 m / s and the walls of the tubes are maintained at 65 ° C. Determine the temperature of the air at the outlet, the total rate of heat transmission and the pressure drop.
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