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RE: [EnergyPlus_Support] V2.0 electric generator - change: baseload to track schedule
Miguel,
Thanks for bringing this our attention. As a result of digging into your file (as well as the example HeatRecoveryPlantLoop), I have filed a bug report (CR 7425). This should be resolved in the next version of EnergyPlus.
The only work-around for version 2.1 that I have found is to replace the variable speed pump on the heat recovery loop with a constant speed pump set to Continuous, and then the plant loop will flow.
Brent
________________________________
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Miguel Angel Pascual
Sent: Sunday, November 25, 2007 9:50 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: RE: [EnergyPlus_Support] V2.0 electric generator - change: baseload to track schedule
Thanks for your answer.
I have already tried to run the file in version 2.1, there is no crash but
it is not recovering any heat, not my file, not the in original example
("Generator Heat Recovery Mass Flow Rate" is reporting 0 values all the
time).
Any idea?
Miguel Ángel Pascual
Director Técnico
MIYABI espacios urbanos bioclimáticos
Carlos III 11, 3ºizda. 31002 Pamplona
Tel: 948 20 36 44 Fax: 948 20 78 60
Email: HYPERLINK "mailto:mapascual@xxxxxxxxx <mailto:mapascual%40miyabi.es> "mapascual@xxxxxxxxx <mailto:mapascual%40miyabi.es>
Web: HYPERLINK "http://www.miyabi.es <http://www.miyabi.es> "www.miyabi.es
_____
De: EnergyPlus_Support@xxxxxxxxxxxxxxx <mailto:EnergyPlus_Support%40yahoogroups.com>
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx <mailto:EnergyPlus_Support%40yahoogroups.com> ] En nombre de Griffith, Brent
Enviado el: domingo, 25 de noviembre de 2007 16:16
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx <mailto:EnergyPlus_Support%40yahoogroups.com>
Asunto: RE: [EnergyPlus_Support] V2.0 electric generator - change: baseload
to track schedule
Miguel,
I took a look at your file--it sure does crash in Version 2.0. I found that
if you raise the values for "Maximum Temp for Heat Recovery" in the
Generator input objects to 99.C, then that bit of code won't execute and
serves as a workaround for the hard crash.
I would recommend upgrading to the recent version 2.1 because of the major
changes in modeling of indirectly-heated water tanks.
This file is based on the example file HeatRecoveryPlantLo-op.idf; please
note that example file was improved for Version 2.1 and you'll need to make
some similar changes.
brent
____________-_________-_________-__
From: HYPERLINK
"mailto:EnergyPlus_Support%40yahoogroups.com"EnergyPlus_Support@-yahoogroups
.-com [mailto:HYPERLINK
"mailto:EnergyPlus_Support%40yahoogroups.com"EnergyPlus_Support@-yahoogroups
.-com] On Behalf Of Miguel Angel Pascual
Sent: Saturday, November 24, 2007 12:46 PM
To: HYPERLINK
"mailto:EnergyPlus_Support%40yahoogroups.com"EnergyPlus_Support@-yahoogroups
.-com
Subject: RE: [EnergyPlus_-Support] V2.0 electric generator - change:
baseload to track schedule
Dear Linda:
Thanks for your help. The file is already in the problems area, it is the
zip file cogeneration.-zip. There you could find, the idf file and and csv
need for a schedule. The file should be working fine, but If you change the
generator scheme from baseload to track schedule your will have a crash
(with no warning in my computer).
Thanks in advance.
Miguel Ángel Pascual
Director Técnico
MIYABI espacios urbanos bioclimáticos
Carlos III 11, 3ºizda. 31002 Pamplona
Tel: 948 20 36 44 Fax: 948 20 78 60
Email: HYPERLINK "mailto:HYPERLINK
"mailto:mapascual%40miyabi.es"mapascual@miyabi.-es
<mailto:mapascual%-40miyabi.-es> "HYPERLINK
"mailto:mapascual%40miyabi.es"mapascual@miyabi.-es
<mailto:mapascual%-40miyabi.-es>
Web: HYPERLINK "HYPERLINK "http://www.miyabi.es <http://www.miyabi.es> "http://www.miyabi.-es <http://www.miyabi.-es>
<HYPERLINK "http://www.miyabi.es <http://www.miyabi.es> "http://www.miyabi.-es <http://www.miyabi.-es> > "www.miyabi.-es
_____
De: HYPERLINK
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.-com <mailto:EnergyPlus_-Support%40yahoog-roups.com>
[mailto:HYPERLINK
"mailto:EnergyPlus_Support%40yahoogroups.com"EnergyPlus_Support@-yahoogroups
.-com <mailto:EnergyPlus_-Support%40yahoog-roups.com> ] En nombre de Linda
Lawrie
Enviado el: sábado, 24 de noviembre de 2007 15:58
Para: HYPERLINK
"mailto:EnergyPlus_Support%40yahoogroups.com"EnergyPlus_Support@-yahoogroups
.-com <mailto:EnergyPlus_-Support%40yahoog-roups.com>
Asunto: RE: [EnergyPlus_-Support] V2.0 electric generator - change: baseload
to track schedule
Any crashes, please upload your file to the problem submittals area.
At 01:50 AM 11/24/2007, Miguel Angel Pascual wrote:
>In my computer I not having any of the warnings you posted. I changed the
>DHW branch behaviour to active and I got the same simulation results. Then
I
>changed the ELECTRIC LOAD CENTER:DISTRIBUTION--- scheme from "baseload" to
>"track schedule" and I got the crash.
Linda
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