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Arnaud, If you want to properly account for the real interactions, there are some trnsys add-ons (such TrnFlow) which can calculate air flows. However, if both spaces are conditioned to the same temperature, the interaction should be small. To test the effect, just set up a coupling airflow between the two zones (add an input airflow equal to the temp & humidity of one zone to the other, for each zone), and just play with the airflow rate to see what the effect is. Assume a small flow at first, then increase up to something really high. If all the effects are small then I'd say ignore it. If you see some effects you're concerned about then I'd say it's worth investigating further with the more detailed methods. Sometimes it's good to just test the boundaries with a simple method before you spend a lot of time with a detailed method. And yes, if you want to account for the different thermal properties of the door, create a new wall type and make a "wall" of the door's area. -Cramer A.Thome-08@student.lboro.ac.uk wrote: Dear all, When there are two thermal zones, adjacent to each other, without any door, just open to each other (I actually maybe should have defined it as ONE thermal zone only, but did not because of architectural/orientation issues), how should I represente the interface between the two zones? For the moment I just did not specified anything and obviously this is not correct! Now, If you have an interface ( wall + door = 10m2) with a door (2m2) between the two thermal zones I have to define two types of "wall", one which is "door type" (2m2) and the second one which is "internal adjacent" wall type(8m2)? Thank you for all the advices! Arnaud. _______________________________________________ TRNSYS-users mailing list TRNSYS-users@cae.wisc.edu https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users --
J. Cramer Silkworth Transsolar Climate Engineering Technical consulting for energy efficiency and environmental quality in buildings. 134 Spring Street, Suite 601 New York, NY 10012 212-219-2255 silkworth@transsolar.com |