Using FSHC to Update the Heat Content of a Stream in METSIM

FSHC is a mathematical function which recalculates the heat content of a stream based on the component masses and heat content of the components.

If you combine two streams the heat content after the combination must be calculated from the of the sum of the heat contents of all the portions of the components that came from streams with different temperatures.

Using FSHC you can recalculate the heat content of the sream from the heat contents of the components when you know it will be necessary because of changes you have made.