Engine oil with properties given below flows at a rate of 136 kg per hour through a 7 5 cm ID pipe whose inside surface is maintained at 100 deg C If the oil enters at 160 deg C, what will its temperature be at the exit of a 15 m long pipe p, kg m Cp, J kg K v, m s 10 T, K k, W m k Pr 276 373 842 2 219 0 137 0 0203 0 0124 393 831 2 306 0 135 175 2 394 0 133 0 0080 413 817 116 2 482 0 0056 433 808 0 132 84

Question: Engine oil with properties given below flows at a rate of 136 kg per hour through a 7.5-cm-ID pipe whose inside surface is maintained at

Engine oil with properties given below flows at a rate of 136 kg per hour through a 7.5-cm-ID pipe whose inside surface is maintained at 100°C. If the oil enters at 160°C, what will its temperature be at the exit of a 15-m-long pipe?

p, kg/m³ Cp, J/kg · K v, m²/s × 10* T, K k, W/m-k Pr 276 373 842 2.219 0.137 0.0203 0.0124 393 831 2.306 0.135 175 2

p, kg/m Cp, J/kg K v, m/s 10* T, K k, W/m-k Pr 276 373 842 2.219 0.137 0.0203 0.0124 393 831 2.306 0.135 175 2.394 0.133 0.0080 413 817 116 2.482 0.0056 433 808 0.132 84

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