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May 15, 2026

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Heat Exchanger Pinch Point

Diagram showing difference between average temperature difference and actual temperature profile inside a heat exchanger
PPI March 22, 2026 0

Why Average Temperature Difference Is Misleading – When a Useful Shortcut Starts Hiding Real Plant Behavior

Average temperature difference is one of the most commonly used concepts in heat transfer. It appears in design calculations, simulations, datasheets, and performance discussions. It is also one of the…

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Diagram showing pinch point and phase change zones where LMTD becomes unreliable in heat exchangers
PPI March 11, 2026 0

When LMTD Fails – Phase Change & Pinch Points – The Situations Where a Reliable Tool Stops Being Reliable

LMTD is one of the most useful tools in heat exchanger design. Under the right conditions, it provides a compact and effective way to represent temperature driving force. However, LMTD…

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Recent Posts

  • What Heat Exchangers Actually Do in Process Plants (Beyond Simple Heat Transfer) – More Than Temperature Control — They Shape Plant Behavior
  • What Young Engineers Miss in Thermal Design Reviews – Why “Correct Calculations” Still Lead to Plant Problems
  • Case Study: Heat Exchanger Designed Right but Failed Anyway – When Correct Design Still Produces the Wrong Outcome
  • Why Debottlenecking Often Fails Without Thermal Review – When Added Equipment Does Not Add Capacity
  • Instrument Accuracy vs Heat Balance Accuracy – Why a Small Measurement Error Can Create a Big Thermal Confusion

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