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 KU/Kg. C respectively. Determine heat transfer in the hot water. 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. 40.128KW O b. 40128KW O c. 4.0128KW O d. 401.28KW

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 KU/Kg. C respectively. Determine heat transfer in the hot water. 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. 40.128KW O b. 40128KW O c. 4.0128KW O d. 401.28KW

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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