CoolProp

[alireza amiryoon]

Hello Every Body

I'm using CoolProp Version 4.2.3 by MATLAB R2016b. I want to know how can I lead these codes to answers?

Here are my main problems:

1- S(entropy) and P(pressure) can be a pair of input for mixtures? for a pure fluid I got answers.
Code:

CoolProp.PropsSI('H','S',1.4235,'P',770,'R245fa[0.5]&Pentane[0.5]');

Error:

Warning: phase envelope must be built to carry out HSU_P_flash for mixture
> In CoolProp.PropsSI (line 2)
Error using CoolPropMATLAB_wrap
Fatal error.

2- A composition of 3 or more fluid mixtures can be used in CoolProp?
Code:

CoolProp.PropsSI('Z','S',1.4235,'P',770,'R245fa[0.2]&Pentane[0.5]&R134a[0.3]');

Error:

Warning: Initialize failed for backend: "?", fluid: "R245fa&Pentane&R134a" fractions "[ 0.2000000000, 0.5000000000,
0.3000000000 ]"; error: Could not match the binary pair [109-66-0,811-97-2] - for now this is an error.
> In CoolProp.PropsSI (line 2)
Error using CoolPropMATLAB_wrap
Fatal error.

Error in CoolProp.PropsSI (line 2)
  [varargout{1:ma1,nargout)}] = CoolPropMATLAB_wrap(345,varargin{:});


3- How can I calculate Z as Compressibility factor of Fluid mixtures of 3 or more numbers?

I would be glad and thankful to recieve your helps.

[Ian Bell]

First off, 4.2.3 is a very old version of CoolProp. You should upgrade to 6.1

1) PS inputs are not well supported for mixtures.  For that you will need to use REFPROP

2) Upgrade to 6.1 and this mixture should be possible

3) Z = p/(rho*R*T).  Once you have done a flash call, you should be able to calculate Z.  See also http://www.coolprop.org/coolprop/HighLevelAPI.html#table-of-string-inputs-to-propssi-function ("Z" is in that table)

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[alireza amiryoon]

thank you Sir

[Milad Fy]

سلام اقای امیریان

On Saturday, 11 November 2017 12:38:24 UTC+3:30, alireza amiryoon wrote:

thank you Sir

[Milad Fy]

ایا مشکل  مربوط به مخلوط  را حل کردید؟

[Ian Bell]

Can you please respond in english? That's the lingua franca of the coolprop mailing list

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[Milad Fy]

When I wana determine the property of mixture in matlab with antropy and preesure ,I got error phase evolve

On Jan 10, 2019 12:06 PM, "Ian Bell" <ian.h...@gmail.com> wrote:

Can you please respond in english? That's the lingua franca of the coolprop mailing list

On Thu, Jan 10, 2019 at 1:34 AM Milad Fy <milad...@gmail.com> wrote:

سلام اقای امیریان

On Saturday, 11 November 2017 12:38:24 UTC+3:30, alireza amiryoon wrote:

thank you Sir

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[Milad Fy]

What can I do ?

On Jan 10, 2019 3:46 PM, "Milad Fy" <milad...@gmail.com> wrote:

When I wana determine the property of mixture in matlab with antropy and preesure ,I got error phase evolve

On Jan 10, 2019 12:06 PM, "Ian Bell" <ian.h...@gmail.com> wrote:

Can you please respond in english? That's the lingua franca of the coolprop mailing list

On Thu, Jan 10, 2019 at 1:34 AM Milad Fy <milad...@gmail.com> wrote:

سلام اقای امیریان

On Saturday, 11 November 2017 12:38:24 UTC+3:30, alireza amiryoon wrote:

thank you Sir

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[Ian Bell]

Unfortunately, for mixtures, the algorithms have not all been implemented, and they are quite tricky to implement too.  REFPROP is the only option currently.

On Thu, Jan 10, 2019 at 5:17 AM Milad Fy <milad...@gmail.com> wrote:

What can I do ?

On Jan 10, 2019 3:46 PM, "Milad Fy" <milad...@gmail.com> wrote:

When I wana determine the property of mixture in matlab with antropy and preesure ,I got error phase evolve

On Jan 10, 2019 12:06 PM, "Ian Bell" <ian.h...@gmail.com> wrote:

Can you please respond in english? That's the lingua franca of the coolprop mailing list

On Thu, Jan 10, 2019 at 1:34 AM Milad Fy <milad...@gmail.com> wrote:

سلام اقای امیریان

On Saturday, 11 November 2017 12:38:24 UTC+3:30, alireza amiryoon wrote:

thank you Sir

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[Milad Fy]

Hello sir. Can you give me refprop mixture library's ?

On Jan 11, 2019 3:14 AM, "Ian Bell" <ian.h...@gmail.com> wrote:

Unfortunately, for mixtures, the algorithms have not all been implemented, and they are quite tricky to implement too.  REFPROP is the only option currently.

On Thu, Jan 10, 2019 at 5:17 AM Milad Fy <milad...@gmail.com> wrote:

What can I do ?

On Jan 10, 2019 3:46 PM, "Milad Fy" <milad...@gmail.com> wrote:

When I wana determine the property of mixture in matlab with antropy and preesure ,I got error phase evolve

On Jan 10, 2019 12:06 PM, "Ian Bell" <ian.h...@gmail.com> wrote:

Can you please respond in english? That's the lingua franca of the coolprop mailing list

On Thu, Jan 10, 2019 at 1:34 AM Milad Fy <milad...@gmail.com> wrote:

سلام اقای امیریان

On Saturday, 11 November 2017 12:38:24 UTC+3:30, alireza amiryoon wrote:

thank you Sir

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[Matthis Thorade]

You can buy a Refprop license here:

https://www.nist.gov/srd/refprop

Am Freitag, 11. Januar 2019 09:38:18 UTC+1 schrieb Milad Fy:

Hello sir. Can you give me refprop mixture library's ?

On Jan 11, 2019 3:14 AM, "Ian Bell" <ian.h...@gmail.com> wrote:

Unfortunately, for mixtures, the algorithms have not all been implemented, and they are quite tricky to implement too.  REFPROP is the only option currently.

On Thu, Jan 10, 2019 at 5:17 AM Milad Fy <milad...@gmail.com> wrote:

What can I do ?

On Jan 10, 2019 3:46 PM, "Milad Fy" <milad...@gmail.com> wrote:

When I wana determine the property of mixture in matlab with antropy and preesure ,I got error phase evolve

On Jan 10, 2019 12:06 PM, "Ian Bell" <ian.h...@gmail.com> wrote:

Can you please respond in english? That's the lingua franca of the coolprop mailing list

On Thu, Jan 10, 2019 at 1:34 AM Milad Fy <milad...@gmail.com> wrote:

سلام اقای امیریان

On Saturday, 11 November 2017 12:38:24 UTC+3:30, alireza amiryoon wrote:

thank you Sir

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