DIVA Context Model in Grasshopper

Replies to This Discussion

Permalink Reply by Jeff Niemasz on October 21, 2013 at 5:48am

Hello Mark,

Model the adjacent buildings as shading elements. I do not recommend referencing an entire city as the energy simulation gets longer with the number of surfaces included, so just build simplified geometry adjacent to the thermal zone in question. You can see how including the context in this simple model increases the heating load and decreases the cooling load (default office schedule in Boston weather file).

Jeff

Attachments:

• Simple_Box_with_Context_Shading.gh, 33 KB

Permalink Reply by mark jongman-sereno on October 21, 2013 at 9:44am

Thanks for the quick response Jeff.

One final question, how would I display the new shaded model in the false color solar irradiation map on the faces of the smaller rectangle?

Thanks

Permalink Reply by mark jongman-sereno on October 21, 2013 at 10:45am

To elaborate I would like to be able to visualize the result of the city context on my site...and eventually use the city context to further influence the DIVA Solar Envelope and Solar Fan components in my model.

Permalink Reply by Jeff Niemasz on October 23, 2013 at 8:59am

I think I misunderstood your first question- the example I posted was for an annual thermal simulation. The thermal, solar irradiation, and solar envelope tool are looking at different things (although they are interconnected in some ways). Here is an example for solar irradiation. I am not sure how to use these results directly solar zoning tool- they are for different design questions - one is about solar irradiation and the other is about establishing a minimum number of hours of direct sunlight.

 

Attachments:

• Simple_Cone_with_Context_Shading_Solar_Irradiation.gh, 26 KB