Question-and-Answer Resource for the Building Energy Modeling Community

Origins of 4 Pa reference pressure for infiltration...

asked 2017-05-02 16:17:45 -0600

51 ●1

updated 2017-05-02 20:13:42 -0600

Does anyone know the origins or justification for the 4 Pa commonly used as a reference delta P across building enclosures, and was it intended for low-rise residential applications only? The earliest reference I can find is a couple 1980 papers by Sherman and Grimsrud, but I can't find a justification for it.

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2017-05-03 00:47:03 -0600

banicu

622 ●2 ●6

As I recall from my collage course: 4 Pa is the average pressure difference between indoor and outdoor (in mild wind conditions).

More information can be found in this post: https://unmethours.com/question/11481...

edit flag offensive delete link

Comments

That post is good, but references the same paper, which doesn't hold the answer. I'm trying to find out why 4 Pa, and was that only intended for low rise. I have a feeling that there is no reasonable reference pressure for high-rise, because, it depends....

Matt Carlsson ( 2017-05-03 05:54:39 -0600 )edit

add a comment

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops

Careers

Question Tools

Stats

Asked: 2017-05-02 16:17:45 -0600

Seen: 218 times

Last updated: May 03 '17

Site design and logo: Copyright © 2015 Big Ladder Software LLC. All rights reserved.
The Unmet Hours and Big Ladder names and logos are trademarks of Big Ladder Software LLC.
User contributions licensed under the Creative Commons Attribution Share Alike 3.0 License.

Origins of 4 Pa reference pressure for infiltration... edit