Re: [TRNSYS-users] MULTIPLE AIRNODES IN A ZONE

[David BRADLEY <d.bradley@tess-inc.com>]

Juan,
  You would need to use TRNFlow or CONTAM (Type97) to calculate the rates at which air flows from one zone to another based on the temperature and pressure differences within your building. Type56 can, however, calculate the effect of known air flow rates between zones. Since implementing a TRNFlow or CONTAM airflow model is somewhat complicated, you might start off by assuming some interzonal air flow rates to see what the impact of those air flow rates is on the stratification and comfort within the building. If you assume a reasonably low air exchange rate and find that the comfort results are not significantly different from those when you assume a high air exchange rate then you can save yourself the time and energy of implementing the air flow model.
Kind regards,
 David

On 8/6/2013 03:15, JUAN FRANCISCO BELMONTE TOLEDO wrote:

Hello all.

 

I’m modeling a living room of 4m height, conditioned by cooling ceiling panels and I’m evaluating the possibility of using multiple airnodes to simulate the stratification of the temperature within and its influence on comfort parameters,  but I have some preliminary  questions about it:

¿I have to calculate (don’t know, for example with TRNFLOW) or estimate the air flow exchange between airnodes or TRNBUILD is capable of simulating the buoyancy air flow phenomena automatically….?.

 

Thank you.

 

 

Juan Francisco Belmonte Toledo

Dpto. de Mecánica Aplicada e Ing. de Proyectos

Universidad de Castilla-La Mancha

Juanf.belmonte@uclm.es

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