Radiation Results - LB & HB

Hi,

I've been preparing this discussion for some time now.

I was in doubt if continue this discussion or start a new one. So here we are: a new one.

There are 2 issues that are bothering me with the radiation results, specially when comparing the results from LB with those of HB.

Issue 1: Results so different.

In the attached file upper part to the right of the canvas you see both definitions (LB and HB). The images obtained show results so different that i can't find a logic explanation (2.46 vs 41 kWh/m2 for the same period of time). I believe that LB are in the OK range. HB are to high for just 5 hrs of calculation. I don't believe the material definition are making such a big difference (though i tried to have them similar).

Issue 2: Can't get annual grid based calculations plotted.

In the attached, right side at the bottom. I get the calculation, but after connecting the results to the HB_readAllTheDSHourlyResults it takes ages to calculate and at the end rhino crashes. Can be that this is a memory problem? Or there is a way to make this work (total annual radiation for GridBased simulation)? For now i disabled the component, but i just wonder ...

Words of wisdom for both issues will be appreciated.

Thanks,

-A.

Attachments:

05_SunlightHourAnalysis_CrossTower-V0_Honeybee_Done_01.gh, 630 KB

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Replies to This Discussion

Permalink Reply by Robert Narracci on October 8, 2015 at 11:51am

Give me a few minutes to dumb down the mass and apply a simple skin. I'll give you the 3DM and the GH I was working with.

Permalink Reply by Robert Narracci on October 8, 2015 at 12:42pm

M, Here we go. I stripped out a bunch of context to lean up the model.

I sent you my LB solution so you can see how I wired for floors.

There is an ON/OFF switch at the left to turn on the solution.

There is an underlying mass model from which i use GH to slice floors. I solve for one floor and use the remainder as context.

I added a rudimentary skin composed of spandrel (solid), sunshades (solid), and glazing. I just made these quickly and haven't adopted the geometry into the GH solution.

Thanks pal!

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