Boiling Point Elevation

From SysCAD Documentation
Jump to navigation Jump to search

Navigation: User Guide ➔ Stream Properties ➔ Boiling Point Elevation

Standard Species Model Stream Properties Special Cases
Species Model
Stream Properties
Density Heat of Formation Heat of Dilution Specific Heat
Solubility Boiling Point Elevation pH Charge Steam and Water Sulfuric Acid

Related Links: Boiling Point Elevation Discussion


The Boiling Point Elevation, BPE, of a liquid solution at the stream pressure is the difference between the temperature at which the liquor will boil and the temperature at which water would boil at the same pressure. The magnitude of the BPE is proportional to the number of solute particles in the liquor - i.e. this is a Colligative property.

SysCAD allows a number of different methods of calculating BPE:

  • None - the boiling point of a liquor stream will be equal to the boiling point of saturated water.
  • van't Hoff - this uses the van't Hoff constants and the molality of the ionic species to calculate the BPE. This is described in Boiling Point Elevation.
  • Bayer Species Model - The implementation of a generic Bayer species model in SysCAD using the Boiling Point Elevation Calculations shown.
  • Client Species Models - clients may use their own specific BPE equations in their implemented Species Models.

Boiling Point Elevation Discussion contains further information regarding this topic.

Implementation in SysCAD