Hello Giacomo, Yes that's right, In TRNSYS, the ventilation in the building is in vol/h but by boundary it's in kg/h; and some types have inputs or outputs in kg/h.
For example I use type "attached sunspace" which output air flow is in kg/h. I create an input in the building and link it to the output ventilation of the sunspace. If I decide to call this input by a wall in a zone of my buiding (boundary/coupling air flow), the coupling air flow is asking in kg/h so it's good. But if I decide to call this input by acting a ventilation, it is asking an input in vol/h. So you must be carefull of what you enter in what^^. Best regards, Diane. Quoting David Bradley <[EMAIL PROTECTED]>: > Giacomo, > It may be an issue of air density. I think > that CONTAM reports volumetric flows while TRNSYS > uses mass flows. I am not sure that there is any > way of finding out what the density of the air flows in CONTAM is. > Cheers, > David > > > At 11:53 7/19/2007, [EMAIL PROTECTED] wrote: > > >Hi, > >I am having some problems with TYPE 97. I am modeling a single zone > building > >and i have told TYPE 97 to print the airflow from that zone to the ambient > >and from the ambient to that zone (the two values should be the same of > >course) as > >I want to be sure that everything is working properly. > >Air is supposed to flow in from one device at the bottom of the zone and > >it is leaving from three exits in the top. > >In CONTAM everything seems to work fine but in TRNSYS i am told that the > >two values (inflow and outflow) are different. > >Any help will be appreciated, > >thanks in advance > >giacomo > > > >-- > >Giacomo Villi > >Univerisità degli Studi di Padova > >Dipartimento di Fisica Tecnica (DFT) > >Tel: +39 049 8276871 > > > >_______________________________________________ > >TRNSYS-users mailing list > >[email protected] > >https://www.cae.wisc.edu/mailman/listinfo/trnsys-users > > **************************************************************************************** > Thermal Energy System Specialists (TESS), LLC > David BRADLEY 2916 Marketplace Drive - Suite 104 > Partner Madison, WI 53719 > Phone: (608) 274-2577 USA > Fax: (608) 278-1475 > E-mail: [EMAIL PROTECTED] > Web Pages: http://www.tess-inc.com and http://www.trnsys.com > > "Providing software solutions for today's energy engineering projects" > **************************************************************************************** > > > > _______________________________________________ > TRNSYS-users mailing list > [email protected] > https://www.cae.wisc.edu/mailman/listinfo/trnsys-users > _______________________________________________ TRNSYS-users mailing list [email protected] https://www.cae.wisc.edu/mailman/listinfo/trnsys-users
