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Problem with Wind and Stack measure in OS

asked 2020-11-23 13:01:48 -0500

Red Fox gravatar image

updated 2020-12-08 15:11:26 -0500

Hi! Me and my team are running some tests with a model and the measure Wind and Stack are failing. With the simulation alone it works fine but give me a lot of warnings. This is with the measure:

Update: We try to use the Airflow Network but it didn't work and showed the same errors. We're trying to simulate the windows to open and close during the day to analyse the natural airflow

This is one of the rooms of the builiding that the measure fail (upstairs). In the face with 4 lines of windows only the 2 lines in the middle are operable. In the face with only 1 line they all are operable.


UPDATE December 8

Here is what I did. The windows have 3 materials/construction but they are all the same. I created "Windows 1" and when I used the Construction Set to apply to diferent windows the software created "Windows 2" and "Windows 3". I'm not sure why or how this happens but I checked and when I tried to apply more Contructives Set it creates "Windows 4" and so on. My colleage were using the material/construction "Windows 2" to run the simulation cause the material "Windows 1" were apply to very few windows (I was learning to use the tools so I probably get confused) and it didnt work. I used the measure "Wind and Stack" with the material "Windows 1" and the simulation worked.

My questions now are:

Are "Windows 1" the same material/construction as "Windows 2 and 3" (like a shortcut)? When I apply the measure to "Windows 1" it apply to the rest "Windows 2 and 3"?

Its kinda hard to explain but I got try


image description image description

Program Version,EnergyPlus, Version 9.2.0-921312fa1d, YMD=2020.11.23 15:24,
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][height_difference] - Value type "string" for input "Default 0.5 Open Fractional Schedule" not permitted by 'type' constraint.
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][maximum_indoor_temperature] - Value type "string" for input "Autocalculate" not permitted by 'type' constraint.
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][minimum_indoor_temperature] - "180.000000" - Expected number less than or equal to 100.000000
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][opening_effectiveness] - Value type "string" for input "18 e 19 - Bloco Menor - Esquerda - Pav Superior" not permitted by 'type' constraint.
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][opening_effectiveness] - Failed to validate against child schema #0.
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][opening_effectiveness] - "18 e 19 - Bloco Menor - Esquerda - Pav Superior" - Failed to match against any enum values.
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][opening_effectiveness] - Failed to validate against child schema #1.
   ** Severe  ** <root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][opening_effectiveness] - Failed to validate against any child schemas allowed by anyOf constraint.
   **  Fatal  ** Errors occurred on processing input file. Preceding condition(s) cause termination.
   ...Summary of Errors that led to program termination:
   ..... Reference severe error count=8
   ..... Last severe error=<root>[ZoneVentilation:WindandStackOpenArea][Sub Surface 52_WindandStackOpenArea][opening_effectiveness] - Failed ...
(more)
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1

have you tried to use the Zone Ventilation Wind and Stack Open Area from the Openstudio thermal Zones tab instead of the measure?

obuchely gravatar image obuchely  ( 2020-11-24 07:02:35 -0500 )edit

Thanks for your help. We only use the measure a few times and to be honest we don't really know how to use it in the Thermal Zone tab. If you could be more specific it would help a lot

Red Fox gravatar image Red Fox  ( 2020-11-24 09:08:14 -0500 )edit
1

It is available in OS 3.0.0 and 3.1.0. In the Thermal Zones tab. From the right menu "Library" look for "Zone Ventilation Wind and Stack Open Area". You have to drag and drop the component to the Zone equipment Column. one you have assigned you can click on it and change the parameters on the right side of the screen. It has to be done for each thermal zone.

obuchely gravatar image obuchely  ( 2020-11-24 12:37:06 -0500 )edit

We try to use the newer version (The new release 1.0.0) with the same results. With the model being developed in the older version maybe some adjustment have to be made but I'm clueless. It's kinda frustrating cause we used in another model and it worked just fine. If you have other suggestions I'm all ears

Red Fox gravatar image Red Fox  ( 2020-11-25 18:40:21 -0500 )edit
1

from your report it seems that the error is caused because you are using strings in the arguments. have you tried to use integers numbers?

obuchely gravatar image obuchely  ( 2020-11-26 07:33:55 -0500 )edit

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answered 2020-12-08 13:06:01 -0500

What version of OpenStudio are you using? And can you please open up one of the .idf files produce by the simulation and copy the text of one of the ZoneVentilation:WindandStackOpenArea objects that is failing?

My guess is that you have special characters in the zone or schedule name that is causing your input fields to be misaligned. Notice how the fractional schedule field is showing up in the height difference, angle values showing up in the temperature field, etc. In general, it is best practice to use only the characters A-Z 0-9 and _ in zone and object names.

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I'm using OS 2.9.1. Well I make it work as I describe in todays update using the material/construction "Windows 1" but I'll send you the version that doesn't work when we were using "Windows 2".

Do you have any comments about the fact that when I apply to "Windows 1" the measure runs but when I apply to "Windows 2" (That I believe it is a shortcut to "Windows 1") it doesn't?

Red Fox gravatar image Red Fox  ( 2020-12-08 14:56:14 -0500 )edit

could you post a link to your model? The issue as I explain seems to be a field/versioning issue where field inputs are translating to the wrong fields in the energyplus object. I can't explain that, and can't diagnose the problem in detail from just your description.

mdahlhausen gravatar image mdahlhausen  ( 2020-12-09 16:45:55 -0500 )edit

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Asked: 2020-11-23 13:01:48 -0500

Seen: 101 times

Last updated: Dec 08 '20