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October 13, 2026

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U Value

Fouling factor representing thermal resistance in a shell and tube heat exchanger
PPI October 8, 2026 0

Fouling Factor in Heat Exchanger Design – What It Really Represents

Every shell-and-tube heat exchanger is designed with the expectation that its heat transfer surfaces will gradually become less efficient during operation. Rather than assuming permanently clean conditions, engineers include a…

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Overall heat transfer coefficient U in shell and tube heat exchanger thermal design
PPI August 13, 2026 0

How Engineers Use U in Heat Exchanger Design (Not Textbook U)

The Overall Heat Transfer Coefficient (U) is one of the most important parameters in heat exchanger design, yet experienced engineers rarely treat it as a fixed value from a handbook.…

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Recent Posts

  • How Exchanger Fouling Silently Reduces Duty & Increases Cost
  • Why Designers Add Fouling Margin in Exchangers
  • Fouling Factor in Heat Exchanger Design – What It Really Represents
  • Fouling in Heat Exchangers – Why Design Assumptions Fail in Practice
  • What Process Engineers Should Check Before Approving a Heat Exchanger Vendor Drawing

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