A heat exchanger is to be designed to condense 8 kg/sec of an organic liquid (tsat=80°C, hfg=600 KJ/kg) with cooling water available at 15°C and at a flow rate of 60 kg/sec. The overall heat transfer coefficient is 480 W/m2 -°C calculate: a) The number of tubes required. The tubes are to be of 25 mm outer diameter, 2 mm thickness and 4.85 m length b) The number of tube passes. The velocity of the cooling water is not to exceed 2 m/sec.
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.
A heat exchanger is to be designed to condense 8 kg/sec of an
organic liquid (tsat=80°C, hfg=600 KJ/kg) with cooling water
available at 15°C and at a flow rate of 60 kg/sec. The overall
heat transfer coefficient is 480 W/m2
-°C calculate:
a) The number of tubes required. The tubes are to be of 25 mm
outer diameter, 2 mm thickness and 4.85 m length
b) The number of tube passes. The velocity of the cooling water
is not to exceed 2 m/sec.
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