Tube fouling is one of the main factors that reduces heat exchanger performance over time.
As fouling builds up on the tube surface, it creates an additional thermal resistance layer, which decreases the overall heat transfer coefficient (U-value).
The impact is not only reduced heat transfer capacity, but also increased pressure drop due to flow restriction. In many industrial applications, even a thin fouling layer can significantly affect energy consumption and operating costs.
Common fouling control methods include:
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Proper fluid filtration
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Water treatment and chemical control
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Maintaining suitable flow velocity
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Regular inspection and cleaning
In heat exchanger design, fouling resistance should always be considered during thermal calculations to ensure reliable long-term operation.
Tube Fouling and Its Impact on Heat Transfer Efficiency
