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

Effect of No Mass Materials

asked 2023-07-31 11:45:57 -0500

IanVG
261 ●4 ●7

updated 2023-07-31 12:28:22 -0500

Aaron Boranian

13830 ●76 ●24 http://bigladdersoftware.com/

I see that no mass materials only have the following physical properties:

R-value
Thermal absorptance
Solar absorptance
Visible absorptance
Roughness

What effect would using no mass materials have on my model? Does it prevent certain kinds of simulations from running?

edit retag flag offensive close merge delete

add a comment

1 Answer

Sort by » oldest newest most voted

answered 2023-08-02 06:05:34 -0500

Denis Bourgeois
2081 ●81 ●8 http://www.rd2.ca

Assuming you're referring to OpenStudio/EnergyPlus, you'll find some good answers in past UMH posts (search for "massless", "nomass" or "no-mass"). Indeed, some E+ modules (e.g. KIVA, Site:GroundDomain:Slab) won't take in massless materials (edit: initial comment re-posted as an answer).

edit flag offensive delete link

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

1 follower

Stats

Asked: 2023-07-31 11:45:57 -0500

Seen: 109 times

Last updated: Aug 02 '23

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.

Effect of No Mass Materials edit