En. Karim recently bought a 2-shell passes and 12-tube passes type heat exchanger for his metal factory to reduce the hot oil (cp = 2200 J/kg.K) temperature. The hot oil enters the heat exchanger through the shell passes at 160 °C with a flow rate of 0.2 kg/s. The coolant fluid used to reduce the hot oil temperature is water (cp = 4180 J/kg.K). Water flows through the heat exchanger pipe at 18 °C and at %3D flow rate of 0.1 kg/s. The tube inside the heat exchanger is made of 1.8 cm diameter copper tube and the length is 3 m. If the overall heat transfer coefficient is 340 W/m².K, evaluate and discuss your finding for the following parameters; i. The maximum rate of heat transfer, ii. The actual rate of heat transfer, iii. The outlet temperatures of the water, and iv. The outlet temperatures of the oil.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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QUESTION 6
En. Karim recently bought a 2-shell passes and 12-tube passes type heat exchanger for his metal factory
to reduce the hot oil (cp = 2200 J/kg.K) temperature. The hot oil enters the heat exchanger through the
shell passes at 160 °C with a flow rate of 0,2 kg/s. The coolant fluid used to reduce the hot oil
temperature is water (cp = 4180 J/kg.K). Water flows through the heat exchanger pipe at 18 °C and at
flow rate of 0.1 kg/s. The tube inside the heat exchanger is made of 1.8 cm diameter copper tube and
the length is 3 m. If the overall heat transfer coefficient is 340 W/m².K, evaluate and discuss your
finding for the following parameters;
i.
The maximum rate of heat transfer,
ii.
The actual rate of heat transfer,
iii.
The outlet temperatures of the water, and
iv.
The outlet temperatures of the oil.
Transcribed Image Text:QUESTION 6 En. Karim recently bought a 2-shell passes and 12-tube passes type heat exchanger for his metal factory to reduce the hot oil (cp = 2200 J/kg.K) temperature. The hot oil enters the heat exchanger through the shell passes at 160 °C with a flow rate of 0,2 kg/s. The coolant fluid used to reduce the hot oil temperature is water (cp = 4180 J/kg.K). Water flows through the heat exchanger pipe at 18 °C and at flow rate of 0.1 kg/s. The tube inside the heat exchanger is made of 1.8 cm diameter copper tube and the length is 3 m. If the overall heat transfer coefficient is 340 W/m².K, evaluate and discuss your finding for the following parameters; i. The maximum rate of heat transfer, ii. The actual rate of heat transfer, iii. The outlet temperatures of the water, and iv. The outlet temperatures of the oil.
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