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Latest technical notes
New engineering notes on mist eliminators, coalescers and vessel internals.
- Demister Sizing: Why Western and Chinese Conventions Give Different DiametersThe Souders-Brown form is universal; the coefficient, the pad construction and the design fraction are not. How a 47% diameter gap appears
- Why the Same Demister Duty Gives Different Diameters: Five Conventions That Move the AnswerTwo quotes for the same duty can differ by 40 per cent without either being wrong. Units, reference area, where the margin
- Reboiler Mist Eliminators in Ethylene, C3 Splitter Heat Pumps and Refrigeration ChillersThe rule is the same in every reboiler: the dome is sized by volumetric vapour flow and limited by the shell chord.
- Why a Shorter Kettle Bundle Can Need a Larger Shell: Length, Diameter and Which Area BindsCompact chillers cut train length, but not every vessel shrinks. Two area requirements compete, and on the high-pressure and coldest stages the
- Entrainment Prediction in Kettle Reboilers, Why the Element Is Not Free to Size, and What CFD Is Actually ForEntrainment prediction is iterative and geometry-dependent. Inside a reboiler the eliminator is bounded by the shell chord, the level band and the
- Entrainment Control in LNG Pre-Cooling Kettle Reboilers: K Values, Disengagement and Shell DiameterThe shell of a propane pre-cooling kettle reboiler is sized by entrainment, not by heat duty. K values by element type, a
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