1 reply to this topic

[coal]

Dear all,

I am trying to obtain saturated steam properties for a given pressure. However, when I obtain the data from the steam table, it is different from when I obtain from HYSYS simulation.

In HYSYS, I create a pure H2O stream by providing the pressure and vapour fraction (i.e. 1.0000). From there I get the properties of the stream.

But the values differ by decimal point. Anyone having the same problem? Which value is more reliable?

Thanks and regards,
Coal

[Dacs]

Dear all,

I am trying to obtain saturated steam properties for a given pressure. However, when I obtain the data from the steam table, it is different from when I obtain from HYSYS simulation.

In HYSYS, I create a pure H2O stream by providing the pressure and vapour fraction (i.e. 1.0000). From there I get the properties of the stream.

But the values differ by decimal point. Anyone having the same problem? Which value is more reliable?

Thanks and regards,
Coal

How much difference are we talking about?

Go for published values, which in case of Hysys (ASME Steam) relied on for its steam properties.

Don't get to fixated with the exactness of your figures. Sometimes it won't make any sense when giving out figures (like 37.234224563 kg/hr) to make your calculation "more precise".

You have to exercise your judgment when giving out values.