A counter-flow double pipe heat exchanger shown in the figure below is to heat water from 20°C to 100°C at the rate of 1.2kg/s. The heating is to be accomplished by geothermal water available at 160°C at a mass flow rate of 2kg/s, the inner tube is thin-walled and has a diameter of 1.5 cm. If the overall heat transfer coefficient of the heat exchanger is 640W/m2. °C. The specific heat capacities of the water and geothermal are 4.18 KJ/Kg. °C and 4.13 KJ/Kg.°C respectively. Determine the length of the heat exchanger required to achieve the desired heating. Hot geothermal 160°C water 2 kg/s Cold water 20°C 100 °C 1.2 kg/s D 1.5 cm Select one: O a. 17.627 m O b. 17627 m O c. 1.7627 m O d. 176.27 m

A counter-flow double pipe heat exchanger shown in the figure below is to heat water from 20°C to 100°C at the rate of 1.2kg/s. The heating is to be accomplished by geothermal water available at 160°C at a mass flow rate of 2kg/s, the inner tube is thin-walled and has a diameter of 1.5 cm. If the overall heat transfer coefficient of the heat exchanger is 640W/m2. °C. The specific heat capacities of the water and geothermal are 4.18 KJ/Kg. °C and 4.13 KJ/Kg.°C respectively. Determine the length of the heat exchanger required to achieve the desired heating. Hot geothermal 160°C water 2 kg/s Cold water 20°C 100 °C 1.2 kg/s D 1.5 cm Select one: O a. 17.627 m O b. 17627 m O c. 1.7627 m O d. 176.27 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

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.

Question

E DU - Moodle
English (en) -
A counter-flow double pipe heat exchanger shown in the figure below is to heat water from 20°C to 100°C at
the rate of 1.2kg/s. The heating is to be accomplished by geothermal water available at 160°C at a mass flow
rate of 2kg/s. the inner tube is thin-walled and has a diameter of 1.5 cm. If the overall heat transfer coefficient
of the heat exchanger is 640W/m2. °C. The specific heat capacities of the water and geothermal are 4.18 KJ/Kg.
°C and 4.13 KJ/Kg.°C respectively. Determine the length of the heat exchanger required to achieve the desired
of
tion
heating.
Hot
geothermal
160°C
water
2 kg/s
Cold
water
20°C
100 °C
1.2 kg/s
D 1.5 cm
Select one:
O a. 17.627 m
O b. 17627 m
O c. 1.7627 m
O d. 176.27 m

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