In the engine oil industry, double-pipe counter-flow heat exchanger is used to cool the hot engine oil. The heat exchanger is consist of copper tubes for engine oil and water. During the cooling process, the mass flow rate of water through the inner tube is 0.8 kg/s, and the oil through the outer tube at a rate of 1.3 kg/s. The average temperatures of the water and the engine oil to be 40°C and 110°C, respectively, Given the diameter of inner tube is 3 cm and negligible thickness. The inner diameter of the outer tube is 4 cm. Determine the overall heat transfer coefficient of this heat exchanger.
In the engine oil industry, double-pipe counter-flow heat exchanger is used to cool the hot engine oil. The heat exchanger is consist of copper tubes for engine oil and water. During the cooling process, the mass flow rate of water through the inner tube is 0.8 kg/s, and the oil through the outer tube at a rate of 1.3 kg/s. The average temperatures of the water and the engine oil to be 40°C and 110°C, respectively, Given the diameter of inner tube is 3 cm and negligible thickness. The inner diameter of the outer tube is 4 cm. Determine the overall heat transfer coefficient of this heat exchanger.
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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Transcribed Image Text:Air direction
Figure 1: Airstream passing through a square flat plate.
Question 2
In the engine oil industry, double-pipe counter-flow heat exchanger is used to cool the hot
engine oil. The heat exchanger is consist of copper tubes for engine oil and water. During the
cooling process, the mass flow rate of water through the inner tube is 0.8 kg/s, and the oil
through the outer tube at a rate of 1.3 kg/s. The average temperatures of the water and the
engine oil to be 40°C and 110°C, respectively, Given the diameter of inner tube is 3 cm and
negligible thickness. The inner diameter of the outer tube is 4 cm. Determine the overall heat
transfer coefficient of this heat exchanger.
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