Discrepancy Between Results from HB Read Room Energy Result and EnergyPlus IDF Simulation

grasshopper honeybee
1

Hi everyone,

I’m working on an energy simulation using Honeybee in Rhino. Here’s what I’ve done so far:

  1. Created geometry in Rhino and developed an HB Model.
  2. Used the HB Model to OSM component to run the simulation.
  3. Connected the simulation results to the HB Read Room Energy Result component to analyze the outputs.

However, when I compare the results from the HB Read Room Energy Result component with those generated directly from the IDF file after running an EnergyPlus simulation, the outputs are different.

I’m trying to understand what might be causing this discrepancy. Could it be related to:

  • Differences in the way the Honeybee components process results vs. EnergyPlus?
  • Any settings or assumptions within the HB Model to OSM workflow?
  • Specific limitations or nuances in data translation between Honeybee and EnergyPlus?

Has anyone encountered a similar issue or have insights into what might be happening?

Thank you in advance for your help!

Best regards,
Minho Kang
Tomoon Architects&Engineers

**Updated: I attached a 3DM file and a GH file
Energy_Simul.gh (135.8 KB)
HB_Test.3dm (21.3 KB)

2

Hi @MinhoKang
It is a good question. You can post your model and your data for next discussion

3

Hi I attached the file I was working

4

Please upload the simulation data using excel file and some screenshot

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Hi @MinhoKang, I did a quick comparison and found the discrepancies were quite negligible due to the roundup. Is that what you looking for?