Default settings for Mass2Zones isConditioned true

Hello,

I'm a student looking to use honeybee's E+ integration in grasshopper to validate some literature on urban morphology.
To do so, I don't need an in depth E+ model where every single input is manually controlled. In other words, some defaults are welcome. However, I would like to have a decent understanding of those defaults, to understand the results I'm getting

My question is then: what is de Mass2Zones component doing exactly when isConditioned is set to true?

In addition, is there any existing literature on developing grasshopper workflows for E+ integration to support the validity of its results?

Thanks in advance for your kind assistance.

Best regards,
Willem

Replies to This Discussion

Permalink Reply by Devang Chauhan on November 12, 2016 at 8:22am

Hi Willem,

As mentioned in the description of isConditioned_ input. Setting it to True would essentially assign IdealAirLoads systems to your zone / zones. In Honeybee, IdealAirLoads system can be used to assess thermal balance of your zones. With this system, you can assess the heating load and cooling load for your zone / zones without setting up a detailed HVAC system. Therefore, I think the IdealAirLoads is very useful in early stages of design when you are trying out strategies. By default, it is assigned to your zones if you use Honeybee_Masses2Zones component.

I think Mostapha is the best person to respond to your second question.

Thanks,

Devang

Permalink Reply by Willem Vandervoort on November 13, 2016 at 4:15am

Thanks a lot Devang!

Is it also possible to use one of the comfort analysis tools to produce an input value for the cooling control?

Permalink Reply by Devang Chauhan on November 13, 2016 at 6:10am

Hi Willem,

If you are referring to cooling set point or set back, then there's Honeybee_Set Energyplus Zone Thresholds component that can be helpful for establishing those controls over your honeybee zone / zones.

Devang

Permalink Reply by Willem Vandervoort on November 13, 2016 at 6:55am

Hi Devang,

I did find the Set Energyplus Zone Tresholds component. Here you can put one temperature as a treshold. I was referring to something more dynamic, for example start a fan when PMV is greater than 0.5?

Permalink Reply by Devang Chauhan on November 13, 2016 at 7:32am

Hi Willem,

I believe, it is possible to craft a custom schedule from the output of Ladybug_PMV Comfort Calculator. But if we use that schedule to run energy simulation, we would essentially be making an optimization loop. I am not sure whether you intend to do that.

Devang

Permalink Reply by Willem Vandervoort on November 13, 2016 at 7:35am

If it is possible, I would very much like to explore it! However, I'm not familiar with loops in grasshopper.

Permalink Reply by Devang Chauhan on November 13, 2016 at 7:37am

I would try to share a sample.

Permalink Reply by Mostapha Sadeghipour Roudsari on November 13, 2016 at 8:00am

Hi Willem, You can do this using Honeybee but based on your short description you should probably use DragonFly (https://github.com/chriswmackey/Dragonfly).

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