Wrote

Also, no dynamic assistance is available. Though disabling the plugin doesn't help.

Dynamic assistance is enabled in the program's options?

Wrote

Dynamic assistance is enabled in the program's options?

Wrote

Hello Jean, according with CoolProp documentation "Q" stands for "Mass vapor quality", thus 1 is 1 mol/mol

Thanks Davide for "unitless Q" and the link to CoolProp Wrapper

Wrote

Here's what I see:

Try now

Thanks, Davide!
It's fixed indeed.

A german smath user contacted me and asked me to include the steamtable dll for EFI in the portable distribution. They weren't included in the recent update because this involves some additional config work and I assumed that the coolprop wrapper might be a replacement.

According to the mentioned user, the steamtables are of better accuracy than the coolprop functions. Thus I now updated the portable distribution.

The user also asked for speed of sound and isentropic exponent functions. Is there a way to help him?

Martin Kraska

Wrote

The user also asked for speed of sound and isentropic exponent functions. Is there a way to help him?

Martin Kraska

"WASP" is freeware for 10 minutes use, unlimited sessions.
"WASP" from "Katmar". all properties are tabulated per T(°C) or P(abs).

Jean

Wrote

The user also asked for speed of sound and isentropic exponent functions. Is there a way to help him?

As for the speed of sound can be accessed using "A" or "speed_of_sound"


For the isentropic functions I googled "isentropic coolprop" and there is something but it is not my field, maybe Mike can give some hints.

Hello

On entering >>CoolProp_Props("D","T",298.15*K,"P",10*bar,"CO2")=<< I receive a message "K not defined;

Are the double quotes correct?

Tim

Hello Tim,

Wrote

On entering >>CoolProp_Props("D","T",298.15*K,"P",10*bar,"CO2")=<< I receive a message "K not defined;

You missed the units character (apostrophe) before K and bar -> 'K, 'bar

CoolProp_Props("D","T",298.15*'K,"P",10*'bar,"CO2")

Hello Davide,
Thank you for looking into my issue.

I had indeed overlooked the apostrophe, thank you.

I copy and pasted your coolprops statement into SMath but I don't get an answer, instead a red border around the statement.
I also typed the statement in from fresh and I get the same.

Is the ordinary >> = << used on a coolprops statement? Will the answer appear before units are applied to the result?
What is the most simple test to see coolprops working?

Tim

This a screenshot of my coolprops entry, attached.
Tim

p.s. I don't see how to paste the image; the Insert Image command asks for a URL.

What's the error message now?

Simplest way to check if it might works should be:


Also, here there are 3 worksheets to run as test

Hello,

CoolProp_get_global_param_string("version"
lastError="Error message couldn't be retrieved from CoolProp library (buffer size issue?); the second try returned: "


what's the problem?

Hello,

which versions of SMath and CoolProp plugin are you using?

Wrote

what's the problem?

There may be two issues:
1. WASP is awfully involved in Basic construction. I coded it in Mathcad 11
Get the Katmar WASP [very complete] free for 2 min session, unlimited sessions.
2. The published Basic is unitless, the CoolProp is unit based,
that is enough to freaked the codes. The Mathcad version from Valery was OK.
Sorry, can't help more.

Error:
Error message couldn't be retrieved from CoolProp library (buffer size issue?); the second try returned:

Wrote

which versions of SMath and CoolProp plugin are you using?

Hello,

version SMath - 0.98(build 6484)
version CoolProp -


I'm try on the various Windows platforms (32/64):

good result on
Win10x64Pro, Win7x64Ultim


don't working on
Win10x86Pro, Win10x86Educ, Win7x86Pro


Best regards,
Aleksey

This is just a comment.

Assume my firm knows nothing about Smath and you are doing a project for us
and the project requires be tracable and you would use CoolProp-Wrapper.
If you can't prove it is certified, it won't pass QA.
CoolProp-Wrapper would be rejected [as simple as that].

IMHO, from this thread, CoolProp must be doctored regardless of the
Win version and/or Smath version.

Wrote

don't working on
Win10x86Pro, Win10x86Educ, Win7x86Pro

Thank you, reproduced. Something goes wrong with the wrapped 32 bit library (the coolprop dll returns both the correct result as well as an error code, hence the errors shown).

is it possible to run it on ubuntu 17.10 using mono?, I can't get it to work, when I try to evaluate "CoolProp_get_global_param_string("version")" I just get a little yellow message under the command that reads "CoolProp_x64", or do I need to compile the coolprop binaries ins some specific folder or is it a standalone plugin-extension?