climate change weather files problem

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Permalink Reply by mona rezk on May 8, 2015 at 2:37pm

Hi Mostapha, 

thank you for ur reply , I will try it but it's not about the shading device , It's about the wholes made when the device will be opened to ventilate the building . so  I made a hpsrfs to define these wholes  as  openings or windows to make honey bee recognize it in the energy simulation as I need to test air temperature entering through them to building's spaces and the amount of air also .

regards , 

Mona 

Permalink Reply by mona rezk on May 18, 2015 at 5:33pm

Hi  Mostapha , 

Here's a new situation I'm Facing with my file , so I need to reconnect the brebs with hpsrfs every time I open the file , so is there a solution ? 

Thank you , 

Mona

Permalink Reply by Abraham Yezioro on May 18, 2015 at 10:14pm

Ho Mona,

No need to reconnect (crazy). Just disable/enable the HB_HB (ctrl+e twice) then the same with the other orange components (or at least the first one on the chain, so it will trigger the others).

Also send to the back the HB_HB (ctrl+b) so next time you open the file it will be executed first.

-A.

Permalink Reply by mona rezk on May 19, 2015 at 6:01pm

Hi Abraham ,

 thanks  for your help  , the problem disappeared :) .  

wish you all the best , 

Mona 

Permalink Reply by mona rezk on May 27, 2015 at 8:53am

Hello every body , 

hope you are well . me again with new problem , I'm trying to have simulation results but every time with a new issue .I tried to link  the new facade with the main building to be a part of it,,,,  plz find the file attached  and tell me if there's a problem i can't recognize ?

 the energy plus Icon tells me to update honey bee & I updated it but no results .

for the simulation results I need for my study :

- air temperature in side the building 

- thermal comfort analysis 

In 3 cases " when the kinetic facade is closed , 50% open & 100% open "  then I need to make optimization to get the optimum movement of the facade . 

so I need to know what's the problem with my file !!! and if there are advises for the next steps of my study will be great .

 and I have a question , honey bee can deal with windows , but what about doors ? how to have a correct results with no doors in the building ? 

 

thank you in advance 

Mona rezq

Attachments:

• READY 4ENERGY STUDY tail 01 26-5.gh, 702 KB

Permalink Reply by Chris Mackey on July 14, 2015 at 1:05pm

Hi Mona,

Sorry for getting back so late.  You posted a lot of questions in one reply and we might be able to get back to you faster next time if each question or couple of questions were its own discussion.  Also, your file is huge and it is appreciated if you clean up your GH definition to a level that we can understand where your issue is.

Your issue was that you were mis-matching versions of HB.  Some of your components were from the last stable release in February and some others were for shortly after that.  I updated your file to the latest version of the components on the github using the 'Update Honeybee' component.

As you can see, you get air temperature, mean radiant temperature, and zone humidity out of the Read EP result component.  You can use these to calculate indoor comfort with either the Ladybug Adaptive Comfort Calculator or the Ladybug PMV Comfort Calculator.  You should watch the comfort youtube playlist to find out how to do this in more detail:

https://www.youtube.com/playlist?list=PLruLh1AdY-Sho45_D4BV1HKcIz7o...

I would model your interior doors as air walls and, use the Set EP Air Flow component air mixing schedule input to model when the door is closed vs open.  Your exterior doors should be modeled as a separate HBSrf with a construction assigned to it that is representative of a door (I think that the OpenStudio library includes a geeric door construction if you don't want to make one on your own).  Doors do not make much of a difference in most energy simulations since the construction of the door is usually not that far off from the construction of exterior or interior walls.  Oftentimes, there are larger assumptions that you might be worried about like having certain surfaces as adiabatic or the inconsistencies between the simulated EPW file and the climate of your site in the future.

-Chris

Attachments:

• READY4ENERGYSTUDYtail01265_CWM.gh, 759 KB

Permalink Reply by mona rezk on July 14, 2015 at 3:03pm

Hi Chris , 

thank you so much , u solved my big problem . finally the energy simulation can recognize the breathing facade open & close so many many thanks .

I Created a new discussion as I tried to deal with the facade as shading device but didn't work also http://www.grasshopper3d.com/group/ladybug/forum/topics/urgent-conn...

for comfort It always gives me that message " 1. Comfort recipe not recognized. " 

- as you mentioned I noticed that the ccweatherfile 2020 & 2050 gives gives the same results or so close to each other is there a solution for this issue ? 

wish you all the best , Chris :)

Mona 

Permalink Reply by Chris Mackey on July 15, 2015 at 3:31pm

Mona,

I just gave a response to your shading question.  Are you using compatible versions for the comfort map components?  Try updating your file with the 'Update Honeybee' component and, if you still have the issue after syncing with the github like this, upload your GH file and I will take a look.

Climate change differences of 30 years are likely not going to make a big difference, especially if you are far from the polar regions, which will experience a much larger change in temperature than the equator.  It laso makes a difference what type of building you are simulating. If you are making a well-insulated structure that is almost thermally isolated from the surrounding climate, climate change will not affect it much.  A passive or naturally ventilated structure is likely to experience a larger effect.

-Chris

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