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Q5/ Water ( Cp =4.18 kJ/kg.°C) at ( 30 °C) is available for use as a coolant in counter flow double pipe heat exchanger whose total surface area is ( 2 m'). The water is to be to cool oil ( Cp =2.3 kJ/kg.°C) from an initial temperature of ( 150 °C). Because of other circumstances, an exit water temperature greater than ( 90 °C) cannot be allowed. The exit temperature of the oil must not be below ( 56 °C). The over all heat transfer coefficient is ( 290 W/m².°C) Estimate the flow rate of oil & water .

Q5/ Water ( Cp =4.18 kJ/kg.°C) at ( 30 °C) is available for use as a coolant in counter flow double pipe heat exchanger whose total surface area is ( 2 m'). The water is to be to cool oil ( Cp =2.3 kJ/kg.°C) from an initial temperature of ( 150 °C). Because of other circumstances, an exit water temperature greater than ( 90 °C) cannot be allowed. The exit temperature of the oil must not be below ( 56 °C). The over all heat transfer coefficient is ( 290 W/m².°C) Estimate the flow rate of oil & water .

Elements Of Electromagnetics
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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Q5/ Water ( Cp =4.18 kJ/kg.°C) at ( 30 °C) is available for use as a coolant in counter flow double pipe heat exchanger whose total surface area is ( 2 m'). The water is to be to cool oil ( Cp =2.3 kJ/kg.°C) from an initial temperature of ( 150 °C). Because of other circumstances, an exit water temperature greater than ( 90 °C) cannot be allowed. The exit temperature of the oil must not be below ( 56 °C). The over all heat transfer coefficient is ( 290 W/m².ºC) Estimate the flow rate of oil & water .
Transcribed Image Text:Q5/ Water ( Cp =4.18 kJ/kg.°C) at ( 30 °C) is available for use as a coolant in counter flow double pipe heat exchanger whose total surface area is ( 2 m'). The water is to be to cool oil ( Cp =2.3 kJ/kg.°C) from an initial temperature of ( 150 °C). Because of other circumstances, an exit water temperature greater than ( 90 °C) cannot be allowed. The exit temperature of the oil must not be below ( 56 °C). The over all heat transfer coefficient is ( 290 W/m².ºC) Estimate the flow rate of oil & water .
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