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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
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Email : sidler@club-internet.fr
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