Cold water is heated from 10 °C to 43.33 °C in the annular space of a double‐pipe heat exchanger and flows in the annular space at a mass flow-rate of 2 kg/s. The exchanger consists of an outer pipe of 2 in BWG 12 and an inner pipe of 1 in BWG 16 tubing. Hot water enters the inner pipe, at a mass velocity of 1.061 kg/s at 287.7 °C and leaves the pipe at 232.2 °C. Wall temperature of the inner pipe is 104.4 °C. Neglecting the resistance of the wall and scale films and assuming L/D > 150, calculate the heat transfer coefficients of inner surface hi and outer surface ho
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
Cold water is heated from 10 °C to 43.33 °C in the annular space of a double‐pipe heat exchanger
and flows in the annular space at a mass flow-rate of 2 kg/s. The exchanger consists of an outer pipe
of 2 in BWG 12 and an inner pipe of 1 in BWG 16 tubing. Hot water enters the inner pipe, at a mass
velocity of 1.061 kg/s at 287.7 °C and leaves the pipe at 232.2 °C. Wall temperature of the inner pipe
is 104.4 °C. Neglecting the resistance of the wall and scale films and assuming L/D > 150, calculate
the heat transfer coefficients of inner surface hi and outer surface ho.
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