Is there any way to know the g-function response factors calculated automatically using EnergyPlus?

asked 2023-08-04 09:52:28 -0500

Qamar
27 ●7

updated 2023-08-06 18:27:10 -0500

13880 ●76 ●24 http://bigladdersoftware.com/

I used the calculation method (UHFcalc) available in EnergyPlus to calculate the g-function response factors of the ground heat exchangers.

I would like to know if there is any possible way to know the values of response factors calculated and results from using this method in energyPlus.

Thank you,

Regards,

Kamar

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answered 2023-08-08 19:39:08 -0500

shorowit

11071 ●184 ●9 https://www.nrel.gov/b...

updated 2023-08-09 10:48:48 -0500

After running the EnergyPlus simulation, there should be a eplusout.glhe output file that includes the g-function response factors. If you're not seeing it, you may have to add the OutputControl:Files object to the IDF and set the field GLHE to "Yes".

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Thank you for your answer. Where this file should appear. Actually I am not seeing it in the output files. I added an object to the OutputContorl:Files but EP has been crushing. Any tricks on that are very welcome.

Qamar ( 2023-08-09 07:12:54 -0500 )edit

Hi, I have run it again and this warning appears:

The following lines are "Unused Objects".  These objects are in the input
**   ~~~   **  file but are never obtained by the simulation and therefore are NOT used.
**   ~~~   **  Each unused object is shown.
**   ~~~   **  See InputOutputReference document for more details.
************* Object=OutputControl:Files=OutputControl:Files 1

Thanks

Qamar ( 2023-08-09 07:30:26 -0500 )edit

What version of EnergyPlus are you using? Try the latest version if you're not already.

shorowit ( 2023-08-09 09:33:56 -0500 )edit

I am using 9.6.0 version of EP

Qamar ( 2023-08-09 09:35:55 -0500 )edit

Try version 23.1

shorowit ( 2023-08-09 09:38:03 -0500 )edit

Thank you. I installed this new version 23.1 but the file updater is not converting the older version to the new one. It requests me to install new Add-ons which I cannot find in the link https://www.energy.gov/. Any help is very welcome. Many thanks.

Qamar ( 2023-08-09 10:03:40 -0500 )edit

I have run the older file anyway in the new version 23.1 of EP and the warning disappears. However, no eplusout.glhe was found.!

Qamar ( 2023-08-09 10:14:57 -0500 )edit

Can you attach your IDF file via something like Google Drive or Dropbox?

shorowit ( 2023-08-09 10:27:16 -0500 )edit

Yes, sure. Here it is. https://drive.google.com/file/d/1T6jy... Thank you in advance,

Qamar ( 2023-08-09 10:32:54 -0500 )edit

I ran your file and it produced the glhe output file; see the image in my above response.

shorowit ( 2023-08-09 10:47:18 -0500 )edit

Thank you very much for your help. I found the file .glhe

Many thanks, Best regards, Kamar

Qamar ( 2023-08-09 13:52:03 -0500 )edit