[Equest-users] Floor that is situated partly below the grade

[Самолётов Михаил]

Pasha, Thanks for advice.
But probably there are any possibility to make "two rows of windows"  floors? I mean, to do something look like atrium (one volume on few floors).


Sincerely yours,
Mikhail Samoletov
Chief engineer of
"Numerical Simulation Department"
TECHNIQUE BUREAU
Cvetochnaya str, 25"Zh", 196084 St.Petersburg, Russia
www.bt-comfort.ru
phone/fax +7 (812) 318-50-30
mob. +7 (931) 244-83-77

From: Pasha Korber-Gonzalez [mailto:pasha.pkconsulting at gmail.com]
Sent: Thursday, October 21, 2010 10:21 PM
To: Grammy
Cc: Самолётов Михаил; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Floor that is situated partly below the grade

Hi Mikhail,

It is not a straight-forward process in eQuest but it can be done.   If I were in your shoes however I wouldn't separate these two constructions in eQuest.   I would do some pre-processing of my inputs on my own with a pencil & calculator.  My approach would be to calculate the area-weighted average for my U-value of the wall based on the following:

(U-value underground const * X% of total wall area) + (U-value above-ground const * 1-X% of total wall area) = Model Wall U-value for my simplified input value.

Where you "manipulate" or process your input data outside of eQuest using sound engineering & mathmatically theory you can simplify your input process significantly.  The challenge & balance to remember is that we have to be careful not to over-simplify our input assumptions too much if they may skew our model results in anyway.  Just like life, good simulation skills are a balancing act.

Also, my Father speaks Russian and if you need more detailed assistance with your energy modeling & eQuest skills I could have him translate for me from English to Russian if this would help you.

Pasha
2010/10/21 Grammy <grammy.hkust at gmail.com<mailto:grammy.hkust at gmail.com>>
Read DOE2.2 Volume, you can build that wall separately, some underground - you can see it in eQuest 3D view, in green color, and some part is upground. Just cut the wall and input the accurate coordinate in detail mode.
2010/10/21 Самолётов Михаил <samoletov.mikhail at bt-comfort.ru<mailto:samoletov.mikhail at bt-comfort.ru>>
I am modeling a two-storied building. It has one floor that is situated partly below the grade. Upper part of this floor lying above the grade and contains few windows. I have not found how to model this in eQUEST. I have tried to make 2 floors instead of the lower floor: one is below and other is above the earth surface, but then they have a ceiling between them! It is wrong, I think! I do not need this additional ceiling in the model.

Is there anybody who speak Russian here? :)

Sincerely yours,
Mikhail Samoletov
Chief engineer of
"Numerical Simulation Department"
TECHNIQUE BUREAU
Cvetochnaya str, 25"Zh", 196084 St.Petersburg, Russia
www.bt-comfort.ru<http://www.bt-comfort.ru/>
phone/fax +7 (812) 318-50-30
mob. +7 (931) 244-83-77



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