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Thermal air flow between two air nodes

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Topic starter

Hello,

I need some help about Trnsys 3D model to write my thesis.

I would like to model an air flow from a living room on the first floor to a room on the upper floor through a void.

The goal is to evacuate the overheating via windows that can open on the roof.

To do this, I used virtual surfaces but the air exchange between the different thermal zones is blocked.

Would you have a solution to simulate the air flow between two thermal zones according to the temperatures?

 Thanks a lot,

Basile Colin student of the University of Liege.

1 Answer
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Topic starter

The two options for having TRNSYS compute the flow between two air nodes are to implement either TRNFlow, which is a TRNSYS add-on that extends the TRNBuild interface to allow you to define the air flow connections between air nodes in your building or to use Type97, which is an implementation of a tool called CONTAM (freely available) that does basically the same.

I find that Type97 offers a little more flexibility and transparency but it requires that you use CONTAM's interface to redraw the building and there is a good bit of information redundancy. There is an example of using Type97 in .Trnsys18\Examples\

TRNFlow is perhaps a little less flexible in my experience but it uses the TRNBuild interface with which you are already familiar. 

kind regards,

 David

 

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