Posts filed under Heat Exchangers. @elseTechnical guidance on heat exchanger and pressure vessel design, materials selection, fabrication and code compliance.
A shell-and-tube heat exchanger can have several thousand tube ends. Each one forms the boundary between shell-side and tube-side fluid, and tube-to-tubesheet joints are a recurring location for leakage and mechanical problems in service.The choice is usually framed as expanded versus welded. That framing is…
CategoriesHeat Exchangers, Industry Standards & Compliance, Materials & Metallurgy
A gasket is specified from a chemical compatibility chart, the material is correct for the fluid, and the joint leaks anyway. On the next turnaround the specification moves to a more expensive material that also leaks. The chart was never wrong. It answered a question about chemistry while the joint was failing on…
CategoriesPressure Vessels, Heat Exchangers, Materials & Metallurgy
A single high-density AI training rack can draw more than 100 kW. Uptime Institute puts the NVIDIA GB200 NVL72 at roughly 132 kW in a 19-inch frame — about 100 kW to cold plates, with more than 25 kW still rejected to air. The challenge does not end at the cold plate. That heat still…
CategoriesHeat Exchangers, Industry Insights
A tube bundle fails in eighteen months, and the metallurgical report says the alloy was never wrong on paper. Type 316L was rated for the acid, temperature sat inside the published range, and the corrosion allowance was generous. What the specification missed was a trace of ferric ion carried over from an upstream…
CategoriesHeat Exchangers, Materials & Metallurgy
Learn the quantitative indicators (U-value drift, Delta-P trends, tube failure rates) that signal when a shell-and-tube heat exchanger needs repair, retubing, or replacement.
CategoriesHeat Exchangers, Industry Insights
Falling film evaporators serve food, water treatment, and chemical industries. Learn how the same physics drives different engineering choices for each application.
CategoriesHeat Exchangers, Industry Insights
Learn how kettle, thermosyphon, forced circulation, and internal reboilers work and which process conditions determine the right choice for your column.
CategoriesHeat Exchangers, Industry Insights
The “20–25 year” lifespan answer is nearly useless. Learn which design and maintenance decisions actually control where your unit lands.
CategoriesHeat Exchangers, Industry Standards & Compliance, Materials & Metallurgy
Learn the mathematical and metallurgical realities of falling film evaporator design, from calculating minimum wetting rates to specifying high-nickel alloys.
CategoriesHeat Exchangers, Materials & Metallurgy
Compare TEMA vs non-TEMA heat exchangers to balance mechanical reliability with capital efficiency. Learn when to specify standards and when to save.
CategoriesHeat Exchangers, Industry Insights, Industry Standards & Compliance
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