Water at 940 kPakPa , 25∘C∘C enters a 1-mm-diameter horizontal pipe with a steady velocity of 19 m/sm/s . At the exit the pressure drops to 860 kPakPa due to viscous resistance. Assuming steady-state flow, determine the rate of heat transfer (Q˙Q˙) necessary to maintain a constant specific internal energy (uu).

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A: The Friction factor for turbulent flow in rough pipes is given by the following expression.…

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A:

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A: Given Data V1=24 m/s P1=1.25 MPa, dry saturated D1=150 mm P2=0.12 MPa Ms=4.5 kg Mw=90 kg

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Q: Only Handwritten solutions are allowed.

A: 1.2.3.

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Q: flowing through a 19.63-cm diameter pipe with a velocity of 6.67 m/s. If the temperature of the air…

A: Given:d=19.63 cm =0.1963 mv=6.67 m/sT=24.02°C =297.02 KP=117 KPa

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.