Heat of Dilution
|Standard Species Model||Stream Properties||Special Cases|
|Density||Heat of Formation||Heat of Dilution||Specific Heat |
|Solubility||Boiling Point Elevation||pH||Charge||Steam and Water||Sulfuric Acid|
The Heat of Dilution, dHdiln, of a species is the change in enthalpy when a solution of concentration M1 is diluted to a final concentration of M2. The most pronounced effects of heat of dilution can be observed with mixtures of acids and water, such as Sulfuric Acid and Nitric Acid.
If the user enters heat of dilution data for a species into the Species Database then SysCAD will automatically calculate the heat of dilution when diluting and concentrating streams and in reactions.
Implementation in SysCAD
- Entering Heat of Dilution Data in the Species Properties Database - Heat of dilution data is usually entered as a table of Enthalpy of Formation (at 25°C) at different mass fractions in the Species Properties Database.
- Heat of Dilution in Reactions - Heat of Dilution is normally used in reaction energy calculations, but it may be set to zero.
- Heat of Dilution Information in a Project - If Heat of Dilution information is entered in a project this can be seen in the Species Properties Access Window (Species - View Properties).
- Example Project with Heat of Dilution - This gives a description of an example project that demonstrates the use and effect of Heat of Dilution data.