HapropsSI("T", "B", 299.15, "R", 0, "P", 101325) lead to an error

[pmanach]

Sorry Ian, another bug ...

[ibell]

That's the one I just fixed...

[ibell]

Cannot replicate. Both W=0 and R=0 work fine for me.

[TimHarvey2]

HapropsSI("T", "B", 299.15, "W", 0, "P", 101325) give 0 for me where HapropsSI("T", "B", 299.16, "W", 0, "P", 101325) gives 351.1027252
HapropsSI("T", "B", 299.15, "R", 0, "P", 101325) gives 0 at any value of B, But works for any value of R >0 <1 using Excel 10 64bit and 5.1.1DLL

[ibell]

How about the nightly version? I fixed some bugs with this stuff.

On Tue, Jul 21, 2015 at 10:32 PM, TimHarvey2 notifications@github.com
wrote:

HapropsSI("T", "B", 299.15, "W", 0, "P", 101325) give 0 for me where
HapropsSI("T", "B", 299.16, "W", 0, "P", 101325) gives 351.1027252
HapropsSI("T", "B", 299.15, "R", 0, "P", 101325) gives 0 at any value of
B, But works for any value of R >0 <1 using Excel 10 64bit and 5.1.1DLL

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#740 (comment).

[TimHarvey2]

Same result but looks like same version same size and date 15/7/2015 SourcForge having problems maybe it is not updated yet.

[TimHarvey2]

Python give error will try new version when available

TTest= HaPropsSI("T", "B", 299.15, "W", 0, "P", 101325)

Traceback (most recent call last):
File "<pyshell#4>", line 1, in
TTest= HaPropsSI("T", "B", 299.15, "W", 0, "P", 101325)
NameError: name 'HaPropsSI' is not defined

TTest= HAPropsSI("T", "B", 299.15, "W", 0, "P", 101325)

Traceback (most recent call last):
File "<pyshell#5>", line 1, in
TTest= HAPropsSI("T", "B", 299.15, "W", 0, "P", 101325)
File "CoolProp\HumidAirProp.pyx", line 3, in CoolProp.CoolProp.HAPropsSI (CoolProp\CoolProp.cpp:4112)
File "CoolProp\HumidAirProp.pyx", line 47, in CoolProp.CoolProp.HAPropsSI (CoolProp\CoolProp.cpp:2865)
ValueError: Brent's method f(t) is NAN for t = 717.837 :: inputs were:"T","B",2.9914999999999998e+02,"W",0.0000000000000000e+00,"P",1.0132500000000000e+05

TTest= HAPropsSI("T", "B", 299.16, "W", 0, "P", 101325)
SyntaxError: invalid syntax
TTest= HAPropsSI('T', 'B', 299.15, 'W', 0, 'P', 101325)
SyntaxError: invalid syntax
TTest= HAPropsSI('T','B',299.15,'W',0,'P',101325)

Traceback (most recent call last):
File "<pyshell#8>", line 1, in
TTest= HAPropsSI('T','B',299.15,'W',0,'P',101325)
File "CoolProp\HumidAirProp.pyx", line 3, in CoolProp.CoolProp.HAPropsSI (CoolProp\CoolProp.cpp:4112)
File "CoolProp\HumidAirProp.pyx", line 47, in CoolProp.CoolProp.HAPropsSI (CoolProp\CoolProp.cpp:2865)
ValueError: Brent's method f(t) is NAN for t = 717.837 :: inputs were:"T","B",2.9914999999999998e+02,"W",0.0000000000000000e+00,"P",1.0132500000000000e+05

TTest= HAPropsSI('T','B',299.16,'W',0,'P',101325)
PRint TTest
SyntaxError: invalid syntax
Print TTest
SyntaxError: invalid syntax
print TTest
351.102725155

[pmanach]

Hello Ian, yes problem on sourceforge. The nightly version is 15-07-2015.

[ibell]

Try from here temporarily - these are nightly builds:
http://www.coolprop.dreamhosters.com/binaries/

On Wed, Jul 22, 2015 at 12:18 AM, pmanach notifications@github.com wrote:

Hello Ian, yes problem on sourceforge. The nightly version is 15-07-2015.

—
Reply to this email directly or view it on GitHub
#740 (comment).

[TimHarvey2]

R one works in excell
W give 0 in excell but works with B = 299.16
in Python Neither work unless B = 299.16

TTemp = HAPropsSI('T','B',299.15,'W',0,'P',101325)

Traceback (most recent call last):
File "<pyshell#7>", line 1, in
TTemp = HAPropsSI('T','B',299.15,'W',0,'P',101325)
File "CoolProp\HumidAirProp.pyx", line 3, in CoolProp.CoolProp.HAPropsSI (CoolProp\CoolProp.cpp:4112)
File "CoolProp\HumidAirProp.pyx", line 47, in CoolProp.CoolProp.HAPropsSI (CoolProp\CoolProp.cpp:2865)
ValueError: Brent's method f(t) is NAN for t = 717.837 :: inputs were:"T","B",2.9914999999999998e+02,"W",0.0000000000000000e+00,"P",1.0132500000000000e+05

TTemp = HAPropsSI('T','B',299.16,'W',0,'P',101325)
print TTemp
351.102725155

[pmanach]

hello Ian,

I just downloaded the latest version at http://www.coolprop.dreamhosters.com/binaries/

HAPropsSI('T','B',299.15,'W',0,'P',101325) :
In Excel, the result is OK.
In VB.NET, the result is NOK.

"Brent's method f(t) is NAN for t = 717.837"

[pmanach]

hello Ian,
did you find soem time to look at thsi problem ?
Sincerely

[ibell]

I'm afraid I don't entirely follow all the things that have been mentioned
in this thread. Can you please summarize for me what exactly doesn't work?

On Tue, Jul 28, 2015 at 2:57 PM, pmanach notifications@github.com wrote:

hello Ian,
did you find soem time to look at thsi problem ?
Sincerely

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#740 (comment).

[pmanach]

hello Ian,

I just download the latest version today (5.1.2dev).
Gitversion : bccebc2

the problem is the following :
HAPropsSI('T','B',299.15,'W',0,'P',101325) :

• In Excel, the result is OK.
• In VB.NET, the result is NOK : "Brent's method f(t) is NAN for t = 717.837"

[pmanach]

Thanks for your time and your help.
It works well.