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Overall heat transfer coefficient of finned tube heat exchangers

2021-06-16View Original

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Gentlemen, I’ve run into a problem recently and am turning to you for help: heat exchange between air and water vapor, with the water vapor at 0.9 MPa and a temperature of 190°C, while the air is heated from room temperature to 180°C. Now it is necessary to calculate the heat transfer area of the heat exchanger. Using the formula Q=KAΔT, what value should be used for K?

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