Water at 180?C and at 3 m/s enters a bare, 15-m-long, 2.5-cm wrought iron pipe, if air at 10?C flows perpendicular to the pipe at 12 m/s, determine the outlet temperature of the water. (Note that the temperature difference between the air and the water varies along the pipe.)GIVENWrought-iron pipe with water flow inside and perpendicular air flow outsideWater entrance temperature (TW,in) = 180?CWater velocity (VW) = 3 m/sPipe length (L) = 15 mPipe diameter (D) = 2.5 cm = 0.025 mAir temperature (Ta) = 10?CAir velocity (Va) = 12 m/sASSUMPTIONSSteady stateAir flow approaching pipe is negligibleThermal resistance of the pipe is negligibleThe pipe thickness can beneglected

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L-15 m Water Tuou-? V-3 m/s Tun= 180°C D-2.5 cm Alr V.- 12 m/s T= 10°C