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Re: [TRNSYS-users] Coupling airflow (in TRNbuild) versus TRNflow

Kevin,
  TRNBuild (Type56) only asks the user to provide the amount of air flow from zone "A" into zone "B" (note that Type56 does NOT assume that an equal amount of air flows back from zone "B" to zone "A" so you have to take care of the mass balance manually). TRNFlow actually figures out what the flows back and forth would be based on temperature differences, pressure differences, and mechanical systems in the two zones. It also takes into account the entire building, not just the two zones. I imagine that it would be very hard to run exactly the same case using TRNBuild and setting the mass flows manually and using TRNFlow. Even if the flow between the two zones is the same, it may be that TRNFlow is calculating some other flows elsewhere (increased infiltration for example).
Kind regards,
 David

kevin maiques wrote:

Dear TRNsys-users

I simulate the same flow between two zones with TRNbuild and TRNflow.
But I don't have same results.
It seems to me that the evolution of temperature is more realistic than temperature with coupling airflow of TNRbuild.

I want to know if I can continue to simulate coupling airflow with TRNbuild or not?

Best Regards.


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