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Hello,

I can’t find why ventilation gives me too much loss. Cause I compare with another software and It’s not the case!
Did you check if inside and outside air temperature give you correct kW los ...

Hi Donnie,

If you're using calculated natural ventilation and don't see any air exchange, you should check :
- activity tab (ventilation setpoint)
- advance tab from Model Options (openings mod ...

Hello,

It is difficult to answer this king of problem without the model.
Could you tel me what DesignBuilder version you're using, what E+ version you selected and if possible could you post your ...

Hello,

You can get fresh air ac/h if you check the corresponding box in the simulation outputs tab.
This data will appear in the main tab, I don't think it is in the summary tab.

The calculated ...

Teresa,

I may have not well understand exactly what you want to do.
In summary :
- you need to define a zone
- you want outputs for this zone (temperatures, thermal exchanges)
- you don't wa ...

Hello Mike,

Even if I can't say exactly what's wrong in your model, did you try to move the outline blocks somewhere else so they aren't in contact with the building ?

I solved complex geometry ...

Sorry, in DesignBuilder v1, you manage Openings at surface level.

This point has been added to the wish list for v2.

Regards,

Hello James,

Presently, DesignBuilder can't import 3D model but DB Team will work on it next year.

By now you can use 2D DXF or pictures floor plans.

Regards,

Hello,

Simulation time for a building about 100 houses will be expensive.

I suggest that :

* you draw only ground floor, a middle floor and the upper one
* you add adiabatic component blocks ...

Hello Max,

I tried to change some settings on your model but I must say I haven't a nice and clear explanation.

Your configuration is OK and parameters are well sent to E+.
There are many vents ...

Hello Donnie and welcome to DB Forum,

The building I am to model includes an underground car park whose south face is opened (basically, three walls are in contact with ground, the last one is just ...

Hello Filip,

I may be wrong but the 'adjacent to ground' symbol may be displayed on the surface as a global indicator. I already see this on my model, some time the symbol is not placed into the co ...

Hello,

There isn't retrofit procedure converting an idf in DesignBuilder format. Sorry.
If you want to purchase a license for educational needs you will benefit a 50% discount on professional fee. ...

Hello,

Natural ventilation could be influenced by pressure difference (intern/extern), wind (velocity and orientation).
I'm not sure this will explain a 180 ach! May be should you post your file t ...

Hello,

This has been fixed in the last beta release.

Regards,

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