(trying to find a nice ...) pentane T-s diagram (and other fluids)

[Lalbatros]

Hello,

I explained in another thread my current business-hobby about various thermodynamic cycles.
(see

http://www.eng-tips.com/viewthread.cfm?qid=262808&page=1)

I would like to find a nice T-s diagram for pentane.
In many papers such diagrams are given schematically.
However, I would like to have a large diagram where at least the isobar and isenthalpic lines could be seen.

Would you know where to find this diagram, preferably on the net?

Of course, I would also be interested by the same for other fluids for organic rankine cycles.
I don't know if something similar would be available for an ammonia-water mixture used in the kalina cycle.

With my thanks and best regards,

Michel

 

[AllHandlesTaken]

You can get "nice" diagrams from here (for a price)

http://www.chemicalogic.com/mollier/default.htm

or were you thinking of less extravagant, for free?

 

[zdas04]

I needed a high-quality T-S diagram for a specific mixture (90% CO2 and 10% methane) last year and bought REFPROP from NIST and was able to generate my own E-size version. It turned out really pretty (yes I am a geek) and was on the wall for a long time (till I needed the space for maps).

It was actually pretty easy to do with the data in REFPROP.

David

 

[amorrison]

Look in ASHRAE (= American Society of Heating, Refrigerating and Air Conditioning Engineers) Fundamentals Volume - available in any Engineering library or from any HVAC engineer.

 

[dcasto]

nist refprop can do it. The GPSA data book has one, I've got laminated ones from elliot turbines for C1, C2, C3