LB_ENVI-Met

Replies to This Discussion

Permalink Reply by djordje on February 19, 2017 at 7:02am

It works with Thermal Comfort Indices component too:

Thank you Antonello for providing the example file, simulation files and guidance!!

ENVI-met simulation files need to be extracted to "c:" partition in order for the .gh file to work.

Attachments:

• ENVI-met_with_TCI.gh, 538 KB

Permalink Reply by Abraham Yezioro on February 19, 2017 at 11:34am

This is nice Djordje.

Just in case Antonello has the chance to include the Biomet comfort results i include here an example of this (since Biomet is commercial).

The directory structure is a bit different than the standard results.

Thanks,

-A.

Permalink Reply by djordje on February 19, 2017 at 12:17pm

Thank you for the Biomet example file Abraham!

Permalink Reply by Antonello Di Nunzio on February 19, 2017 at 3:41pm

Hi Abraham,

Thanks for your sharing, this can help me complete the component.

- Antonello

Permalink Reply by Antonello Di Nunzio on February 19, 2017 at 3:33pm

Hi Djordje,

Thank you for posting the example file. I think Envimet users will be happy to compare all thermal indices!

Permalink Reply by djordje on February 26, 2017 at 5:43pm

Just a small notice: new "Thermal Comfort Indices" component (VER 0.0.64  FEB_27_2017) collaborates with Ladybug ENVI-met components much quicker now.
What took tens of minutes to calculate, now calculates in a minute or less.
The same previous canopy example has been used to analyse PET index:


As with the previous example, ENVI-met simulation files need to be extracted to "c:" partition in order for the .gh file to work.

Thank you once again Antonello!!

Attachments:

• ENVI-met_with_TCI2.gh, 532 KB

Permalink Reply by Abraham Yezioro on February 26, 2017 at 11:28pm

Hi Djordje,

Just to compare, see image of PET results from ENVImet. Good agreement:-)

-A.

Permalink Reply by djordje on February 27, 2017 at 2:00am

Very nice Abraham!
Thank you for posting the comparison!!
Do you own the Science version of ENVI-met?

Permalink Reply by Abraham Yezioro on February 27, 2017 at 2:53am

Hi Djordje,

Unfortunately no. Don't use it so often to pay the annual fee (I'm torned about this, though). But i've purchased Biomet.

I compared a different case and there is also good agreement. I'll check something a bit more "complicated" and will report how it goes.

-A.

Permalink Reply by Abraham Yezioro on February 27, 2017 at 5:05am

Hi again.

This is the second example comparing LB_Pet and EM_Pet. As you can see they are practically the same (which is good). Now with the same palette of colors.

What i WISH now in the LB_ENVImet is importing also the vegetation from EM.

For the case in the image there are a "lot" of trees affecting the PET which are not in the imported model. Without them is sometimes difficult to explain the results.

-A.

Permalink Reply by djordje on February 27, 2017 at 8:08am

Thank you for the testing Abraham! These comparisons are really useful!!

I've never used BioMet, but by looking at their webpage, there seem to be some default parameters: like clothes thermal insulation of 0.9 clo and maybe metabolic rate of: 164.49 W/m2.
If this is the case, then Ladybug "Body characteristics" inputs: clothingInsulation_ and metabolicRate_ need to be set to these values as well: 0.9 and 2.826 mets (=164.49 W/m2):

What i WISH now in the LB_ENVImet is importing also the vegetation from EM. For the case in the image there are a "lot" of trees affecting the PET which are not in the imported model. Without them is sometimes difficult to explain the results.

I will check Antonello's reply on this.

But I wonder why these vegetation models are not even present in the BioMet example?

Permalink Reply by Abraham Yezioro on February 27, 2017 at 8:17am

Yes.

Just FYI, you can set those values also in Biomet (see image).

-A.

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