How to select a mist eliminator: five steps

Point → duty → family → calculation → data sheet: five verifiable steps

Problem → principle → type → calculation → limits → questionnaireDiagram of the selection route: from problem to questionnaireProblem:dropletcarryoverDuty andinstallationpointConstructivefamilyQuestionnaire
Selection route: problem → duty → family → calculation → data sheet → questionnaire

Short answer: selection is a route of five verifiable steps: the installation point, the duty, the design family, preliminary calculations, verification against the data sheet and the questionnaire.

The five steps

  1. The installation point. After a cooler, a humidifier, in a spray chamber, at the intake, in wet gas scrubbing — see “Applications”.
  2. The duty. Flow rates (operating/maximum), the section, flow orientation, the medium, temperature, droplet load.
  3. The family. Vanes/mesh/coalescer/hybrid — by the mechanism and limitations; see the comparison in “Catalog”.
  4. The calculations. Velocity in the section, required section size, ΔP from ζ, energy impact — the site tools.
  5. The data sheet and the form. A request to the manufacturer with recorded inputs; allowable velocities and efficiency — from the data sheet.

What not to do

  • select a model “from a neighbor catalog” without checking the duty;
  • compare models by “efficiency” without identical test conditions;
  • forget drainage: a mist eliminator without runoff is a source of re-entrainment.