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concrete core activation in energyplus

asked 2015-08-13 06:59:52 -0500

antifx's avatar

Hey, I want to model a simple one-zone building with concrete core activation in the ceiling. The supply temperature of the water should be imported (measured data) by constant flow rate. I would try that through schedule.fiele; the heat flow should be calculated through simulation. - Is it possible to implement concrete core activation in EnergyPlus (maybe as a template) – if so, how? - Is the workflow with a schedule:file for importing the measured supply temperature a good way?

Thank you very much!

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answered 2015-08-13 09:09:01 -0500

kwalkerman's avatar

updated 2015-08-13 09:15:48 -0500

For concrete core activation, your best bet is to use Construction:InternalSource coupled with ZoneHVAC:LowTemperatureRadiant:VariableFlow or ZoneHVAC:LowTemperatureRadiant:ConstantFlow. The example file "RadLoHydrHeatCoolAuto.idf" has a good example of how to set this up. For your specific application, I would make the following changes:

  1. The Construction:InternalSource will reflect the concrete core construction
  2. The SetpointManagers that control the PlantLoop Supply temperatures would reference your Schedule:File with the measured data.
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Hi, I realize that this is an old post, but Im currently busy trying to do this on DesignBuilder. Now, I dont have much experience with the software, so the above mentioned solution doesnt say anything to me. I made it to specifying the internal source layer for the concrete core activation and then I cant find any of the above mentioned options. Can you maybe explain this a bit more in detail? I would really appreciate it. Thanks in advance.

Sasha08's avatar Sasha08  ( 2020-04-22 07:24:17 -0500 )edit

answered 2015-08-18 10:19:41 -0500

antifx's avatar

updated 2015-08-18 10:20:52 -0500

Thank you very much! I have created the object: InternalSource, LowTemperatureRadiant:VariableFlow and a Thermostat.

Do I need to implement the whole HVAC System (PlantLoop, etc.)? I am new to EnergyPlus and OpenStudio and I tried it in OS, but it is not that easy - besides, we don't need the whole HVAC in our model, just concrete core activation incl. measured supply temperature.

Is there a possibility, to model something like a "ideal source/sink" for the LowtemperatureRadiant + Construction:InternalSource - without the wohle HVAC system? And if so, how would be a proper way to do that (inside OS would be easier for the start).

Thank you very much

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This is NOT an answer. A precision on your initial question should be added as a comment or by editing your original post (question). Here I think it's actually another question completely.

Julien Marrec's avatar Julien Marrec  ( 2015-08-31 04:47:47 -0500 )edit

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Asked: 2015-08-13 06:59:52 -0500

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Last updated: Aug 18 '15