Honeybee_Energy Optimization with Galapagos_Erro

Hi Mostapha, Chris and group members,

I made a model with variable shape and window rate. I would like to use Galapagos to optimize the shape and window rate for lowest energy consumption.

Here is three questions：

1. As the optimization goes, more and more errors of zones appeared, and the line of Galapagos seemed confusing.

2. When I checked the result again with the push of bottom "Reinstate", the previous total energy calculation turned "undefined".

3. The error is all about "All of your HBSrfs must make a closed volume".

I attached the gh file. I'll appreciate it if you give me a hand.

Thanks in advance.

Attachments:

Stage02_Optimization_3.gh, 861 KB

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Replies to This Discussion

Permalink Reply by Bi Xiaojian on November 19, 2016 at 9:00am

Hi Prof. Mostapha,

Thanks very much for your timely reply and great advice.

There are two more questions about your advice above:

1. How to set up a higher tolerance? And what's the tolerance function about?

2. So excited to hear the news of major modification of Honeybee, just want to make sure the exact version. As I see, you mentioned the Version available on GitHub, so is it the latest one not the Honeybee 0.0.60? If so, I should download the latest file on GitHub and get the version on my pc (equipped with 0.0.60 right now) replaced with it?

I'll deeply appreciate it if you take the time to give me a hand. Thank you.

Xiaojian

Permalink Reply by Devang Chauhan on November 17, 2016 at 1:04pm

Hi Xiaojian,

My results and observations are following:

1. Please find attached image named observations. air wall is defined in solve adjacency component and this puts an air wall adjacent to an interior wall. I disconnected this air wall and the model runs fine I ran it for 19 generations for over the period of 7 hours.

2. Earlier, when I ran the model with air wall connected to altConstruction_, I observed that in the middle of this optimization process, one or many zones will disappear altogether from rhino scene and that is when the results became undefined. In the image you attached, if you see in the top left corner, zone Commercial 1F is missing. I witnessed a similar behavior. This disappearance of zones may explain the erratic highs and lows in fitness numbers that you are talking about.

3. I also made a few changes in how you apply glazing ratios. Please find file with changes.

4. My results are attached as well. When I used air wall as altConstruction, the model ran for 7 generations and then started displaying errors as I mentioned in my earlier responses. After removing air wall and making a change in how glazing ratio is applied, the model ran successfully for 19 generations.

Hope this helps,

Devang

Attachments:

Observation.png, 164 KB
Results.jpg, 959 KB

Permalink Reply by Devang Chauhan on November 17, 2016 at 1:10pm

Revised definition

Attachments:

Stage02_Optimization_3_01.gh, 670 KB

Permalink Reply by Bi Xiaojian on November 19, 2016 at 9:25am

Hi Devang,

Great thanks for your patient and detailed work! And deeply sorry for my late reply.

As you said, the errors happened in the setting of air wall and glazing ratio. I cheked your uploaded gh file, excellent work! Thank you so much.

I also think whether the volume setting method could work better than the surface setting method, which could simplify the model with reduced possibilities of errors, what do you think?

What's your final result of 50 generations? What I saw is the errors decreased, at the same time, the calculation could not stop at the 50th generation unless I pressed the stop bottom. Hmm, interesting. How about yours? Maybe there could exist no best value setting of lowest energy consumption? Or should we set a threshold at first?

Xiaojian