[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TRNSYS-users] modeling a passiv haus



Christophe,
In addition to Michaël's suggestion, there are two other ways that ASHRAE has suggested in the past to estimate infiltration. One is a method called "K1,K2,K3" from about 1987. The form is:

infiltration rate = K1 + K2*(Tin-Tamb) + K3*WindSpeed

K1,K2,K3 is not widely used anymore because it gives quite a high estimation of infiltration rate but is integrated into Type19 but is also available as a stand alone Type in TESS Type571 in the Utility Library. The other alternative that ASHRAE currently suggests is called the "Sherman Grimsrud" method. We implemented this method as well and I would be happy to send it to you if you would like. I am planning to post it as a free component on our website but haven't gotten to do so yet.
Kind regards,
 David


At 06:12 1/10/2006, Enertech wrote:
Dear TRNSYS Users,

This message concern especially german building TYPE56 users.

I?m going to model a "15 kWh passiv haus", the first real project of this type in France (!!!). I don?t know how to estimate the airchange of infiltration of this type of house. I know it will respect the german specification (0,6 vol/h at 50 Pa) but I don?t know how to traduct this value into ?airchange of infiltration?. Does someone have an idea ?

Thanks a lot,
Danke schön,

Christophe.

===========================
ENERTECH
F-26160 FELINES SUR RIMANDOULE
tel-fax : 04 75 90 18 54
Email : sidler@club-internet.fr
Web  : http://sidler.club.fr
================================


_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@engr.wisc.edu
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: bradley@tess-inc.com
Web Pages:  http://www.tess-inc.com     and      http://www.trnsys.com

"Providing software solutions for today's energy engineering projects"
****************************************************************************************