A parallel flow heat exchanger is to be designed to heat 4535 kg/hr of water from 21°C to 43°C with the steam condensing at 121°C on the outside of the tubes. Tubes of 2.54 cm outside diameter and 2.286 cm inside diameter, 2.44m long, are available for use. Assuming that the average steam-side coefficient is 5675 W/m²-°C, and the thermal conductivity of the tube metal is 110.73 W/m²-°C, calculate the required number of tube per pass. Assume that the velocity of the water entering each tube is equal to 0.457 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 parallel flow heat exchanger is to be designed to heat 4535 kg/hr of water from 21°C to 43°C with the steam condensing at 121°C on the outside of the tubes. Tubes of 2.54 cm outside diameter and 2.286 cm inside diameter, 2.44m long, are available for use. Assuming that the average steam-side coefficient is 5675 W/m²-°C, and the thermal conductivity of the tube metal is 110.73 W/m²-°C, calculate the required number of tube per pass. Assume that the velocity of the water entering each tube is equal to 0.457 m/sec. a. 7 c. 9 b. 8 d. 10
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