A 1-2 shell and tube heat exchanger is used to heat water from 60 to 90°C. Oil (Cp=2.3 kJ/kg-K) is used as the heating fluid and flows in the shell side at 150°C. The mass flow rate of the water is 5000 kg/hr while that of the oil is 10,000 kg/hr. The tubes are 1% BWG 10 copper pipes (k = 385 W/m-K). The shell side heat transfer coefficient is 2500 W/m²-K while the tube side heat transfer coefficient is 1000 W/m²-K. Calculate: a. the exit temperature of the oil b. the total length of tubes required

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A 1-2 shell and tube heat exchanger is used to heat water from 60 to 90°C. Oil
(Cp=2.3 kJ/kg-K) is used as the heating fluid and flows in the shell side at 150°C. The
mass flow rate of the water is 5000 kg/hr while that of the oil is 10,000 kg/hr. The tubes
are 1½ BWG 10 copper pipes (k = 385 W/m-K). The shell side heat transfer coefficient is
2500 W/m²-K while the tube side heat transfer coefficient is 1000 W/m²-K. Calculate:
a. the exit temperature of the oil
b. the total length of tubes required
Transcribed Image Text:A 1-2 shell and tube heat exchanger is used to heat water from 60 to 90°C. Oil (Cp=2.3 kJ/kg-K) is used as the heating fluid and flows in the shell side at 150°C. The mass flow rate of the water is 5000 kg/hr while that of the oil is 10,000 kg/hr. The tubes are 1½ BWG 10 copper pipes (k = 385 W/m-K). The shell side heat transfer coefficient is 2500 W/m²-K while the tube side heat transfer coefficient is 1000 W/m²-K. Calculate: a. the exit temperature of the oil b. the total length of tubes required
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