[Bug]

[TeD06910]

Describe the bug
The Discharge temperature of a gas passing through a valve is clearly not calculated properly
By comparison with Hysys, DWSIM calculate much higher temp.

Desktop (please complete the following information):

• OS: Windows 10

Additional context
Add any other context about the problem here.

[DanWBR]

@TeD06910 please provide more details or/and a flowsheet that can be reproduced before reporting such a serious thing (which is not true).

[TeD06910]

Hello Daniel, First of all it is not serious and it is true (don’t appreciate too much your wording) or maybe I made a mistake in the configuration Be sure I appreciate your software and I recognize the huge amount of work you did to make it accessible to any process engineer for free, for that many congratulation. Apparently yes, there are some discrepancies on calculating the JT effect across the function : Valve, see big difference between Hysys and DWSIM If I remember there was a post on same issue. Regards, Thierry From: Daniel Wagner ***@***.***> Sent: Tuesday, October 29, 2024 5:17 PM To: DanWBR/dwsim ***@***.***> Cc: Duretz, Thierry ***@***.***>; Mention ***@***.***> Subject: Re: [DanWBR/dwsim] [Bug] (Issue #686) ***[External Email]*** Warning: This email originated from outside of the organization. Think Before You Click ! @TeD06910<https://github.com/TeD06910> please provide more details or/and a flowsheet that can be reproduced before reporting such a serious thing (which is not true). — Reply to this email directly, view it on GitHub<#686 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BMQVV2JPGBDX3YO6OP5EBLDZ56YJJAVCNFSM6AAAAABQ2HFE7CVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINBUG42TAMBTG4>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[DanWBR]

Again, if you do not provide a flowsheet to prove your generic affirmation that the valve doesn't work at all, I will delete this bug report.

[TeD06910]

In my email I have provided screenshot and file sources, did you get them ? From: Daniel Wagner ***@***.***> Sent: Wednesday, October 30, 2024 10:00 AM To: DanWBR/dwsim ***@***.***> Cc: Duretz, Thierry ***@***.***>; Mention ***@***.***> Subject: Re: [DanWBR/dwsim] [Bug] (Issue #686) ***[External Email]*** Warning: This email originated from outside of the organization. Think Before You Click ! Again, if you do not provide a flowsheet to prove your generic affirmation that the valve doesn't work at all, I will delete this bug report. — Reply to this email directly, view it on GitHub<#686 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BMQVV2IW45D3VBVD4YDO5IDZ6CNY5AVCNFSM6AAAAABQ2HFE7CVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINBWGIZTQOJWG4>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[DanWBR]

You must come to github and attach the zipped flowsheet

[TeD06910]

[TeD06910]

done From: Daniel Wagner ***@***.***> Sent: Wednesday, October 30, 2024 10:23 AM To: DanWBR/dwsim ***@***.***> Cc: Duretz, Thierry ***@***.***>; Mention ***@***.***> Subject: Re: [DanWBR/dwsim] [Bug] (Issue #686) ***[External Email]*** Warning: This email originated from outside of the organization. Think Before You Click ! You must come to github and attach the zipped flowsheet — Reply to this email directly, view it on GitHub<#686 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BMQVV2MABKNRWSF7EVQ2GLDZ6CQQNAVCNFSM6AAAAABQ2HFE7CVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINBWGI4TKMRWG4>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[TeD06910]

I see you have closed the ticket, does this means you are not going to check this valve calculation ? From: Daniel Wagner ***@***.***> Sent: Tuesday, October 29, 2024 5:17 PM To: DanWBR/dwsim ***@***.***> Cc: Duretz, Thierry ***@***.***>; Mention ***@***.***> Subject: Re: [DanWBR/dwsim] [Bug] (Issue #686) ***[External Email]*** Warning: This email originated from outside of the organization. Think Before You Click ! @TeD06910<https://github.com/TeD06910> please provide more details or/and a flowsheet that can be reproduced before reporting such a serious thing (which is not true). — Reply to this email directly, view it on GitHub<#686 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BMQVV2JPGBDX3YO6OP5EBLDZ56YJJAVCNFSM6AAAAABQ2HFE7CVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINBUG42TAMBTG4>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[DanWBR]

@TeD06910 you closed it

[DanWBR]

@TeD06910 can you provide the composition of stream 10?

[TeD06910]

Please see the screenshot, you have the LP Stream property table showing the gas composition

[DanWBR]

@TeD06910 the composition of LP Stream and 10 (1-7) are different. Please provide 10 and 1-7 if possible

[TeD06910]

Hello
Compositions are the same, Hysis is in Percent and DWSIM in fraction
So you can use Hysys values and divide by 100 or use directly the values shown in DWSIM snapshot