Question: The over all heat transfer coefficient based on outside surface area of a tubular heat exchanger decreased due to fouling during operation from 1000

The over all heat transfer coefficient based on outside surface area of a tubular heat exchanger decreased due to fouling during operation from 1000

The over all heat transfer coefficient based on outside surface area of a tubular heat exchanger decreased due to fouling during operation from 1000 W/m^2-K to 800 W/m^2K. The fouling film coefficient of the heat exchanger in W/m^2K is

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