I am looking for open source software tool to access the performance of various refrigerants in Organic Rankine Cycle. For modeling and simulation of cycle process with different solar collectors.
Check Ebsilon, a fully functional simulation package for any kind of power plant.
www.ebsilon.com/en/
If you need just a thermodynamic package, you can check CoolProp ( www.github.com/coolprop ). It's open source and available for any kind of programming language and scientific software. You can model your cycle anyhow. Unit operation modeling is relatively simple comparing to equation of state calculations.
I‘m not sure if you are just interested in comparing the efficiency of different ORC fluids using the same plant technology, but especially for Concentrating Solar Power (CSP) applications, the interaction between plant components (I.e. solar collector system used) and the thermodynamics of the power cycle itself is important for the overall systems efficiency. So, as temperature Levels inside the collector play an important role (reradiation losses at high temperatures), it is always a good idea to model / calculate all the systems‘ components simultaneously. There is a Freeware code of the U.S. National Renewable Energy Lab available under https://sam.nrel.gov/. The SAM software has all common collector types implemented to my knowledge. Nice add-on: you can directly implement yearly weather / solar radiation averages for a large number of sites. Hope this helps ;-) Nice regards, Benjamin
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