The Energy plus documentation (input/output) specifies that for typical commercial buildings in the USA, a reasonable default value for ground temperature: building surface is 2 degC less than the average indoor space temperature. And a practician in 2011 mentions that he has seen many simulations doing simplified method:
- using the last month's mean temperature, less 1 degree.
( http://energy-models.com/forum/ground-temperature-building-surface )
Similar to the Energy+ O/I documentation and Aside from applying:
- Auxiliary programs that can be simulated independent of the IDF file and determine detailed ground heat exchange ------ Ground heat transfer modeling " with "kiva"
- Ground Temperature Calculation through a Basement\slab Calibration process.
- What is the best and easiest (more abstract) method, to input reasonable default values as a ground monthly temperature for small/large residential building models?
Edwin Rodriguez-Ubinas
Thank you for these valuable links
Best regards,
Adel
any links to do simulation in honeybee energy simulation for the ground contact
Dear Achyut Paudel
I am just using honeybee for a couple of days, and I have very limited knowledge of how we can calculate ground temperatures at different levels, perhaps there is a better suggestion than mine. I will just tell you what I know about this subject.
First
for ground temperature in three different depths (0.5, 2, 4) there is a component called (importgroundtemp )
https://www.youtube.com/watch?v=NdG0Rw2Yb7k
Secondly
for the surface temperature, I think Envi-met can achieve that, you have the choice to use it as the main software or you can use it in grasshopper check the video
https://www.youtube.com/watch?v=pELXlYhpFGk
And finally
For the monthly outside surface temperatures between the floor slab and the soil or outside insulation you can use the auxiliary program with energy plus- Slab (SLAB.PNG)
hope it helps
Regards
Adel
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