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A test is conducted to determine the overall heat transfer coefficient in a shell-and-tube oil-to-water heat exchanger that has 24 tubes of internal diameter 1.2 cm and length 2 m in a single shell. Cold water (cp = 4180 J/kg.K) enters the tubes at 20 °C at a rate of 3 kg/s and leaves at 55 °C. Oil (cp = 2150 J/kg.K) flows through the shell and is cooled from 120 °C to 45 °C. Determine the overall heat transfer coefficient Ui of this heat exchanger based on the inner surface area of the tubes.
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A test is conducted to determine the overall heat transfer coefficient in a shell-and-tube oil-to-water heat exchanger that has 24 tubes of internal diameter 1.2 cm and length 2 m in a single shell. Cold water (cp = 4180 J/kg.K) enters the tubes at 20 °C at a rate of 3 kg/s and leaves at 55 °C. Oil (cp = 2150 J/kg.K) flows through the shell and is cooled from 120 °C to 45 °C. Determine the overall heat transfer coefficient Ui of this heat exchanger based on the inner surface area of the tubes.
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Please briefly explain why you feel this answer should be reported.
1. How to know that it is counter flow heat exchanger
2. Can you show me how to find correction factor, do you using graph?
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for the calculation of correction factor use graph