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Implement viscosity models for HFO (ECS?) #746

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agshaligram opened this issue Jul 24, 2015 · 3 comments
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Implement viscosity models for HFO (ECS?) #746

agshaligram opened this issue Jul 24, 2015 · 3 comments
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@agshaligram
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Hi,

I am getting all sorts of problems in using new version of CoolProp. I had successfully used version 4 ( more than a year ago) ; but with version 5.1 the same Code is not working. Just to give an example : I am trying to use R1234ze(E) and am getting an error that viscosity model is not available for this fluid. Whereas earlier I did use the same Code and it was giving me results using the R1234ze(E).

Can you advise where could be the problem ??

Thanks

@jowr
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jowr commented Jul 24, 2015

It might be that the transport routines were removed due to large uncertainties. @ibell what do you think? Please have a look at https://github.com/CoolProp/CoolProp/blob/master/FAQ.md#usage

@ibell ibell modified the milestone: v5.1.2 Jul 26, 2015
@ibell
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ibell commented Aug 2, 2015

@agshaligram : The models that were in 4.2.x were very approximate, there is some new data and I plan to fit curves myself in the near future that will fix the viscosity formulations

@ibell ibell added this to the v5.1.2 milestone Aug 2, 2015
@ibell ibell changed the title Version change Implement viscosity models for HFO (ECS?) Aug 2, 2015
@ibell
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ibell commented Aug 2, 2015

Would be nice to have something for R1234ze and R1234yf at the very least

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