Question-and-Answer Resource for the Building Energy Modeling Community
Get s tarted with the Help page
Ask Your Question
4

Does anyone know where to find the values of solar, thermal, and visible absorptance of building materials?

asked 2016-08-19 13:08:46 -0600

SKG gravatar image

updated 2016-08-20 10:42:06 -0600

I am trying to run a simulation of local residential buildings. Most building's material properties are found in ASHRAE. Can you let me know where to find solar absorptance, thermal absorptance and visible absorptance for different materials used in building construction such as walls, roof, windows , etc...?

Does anyone know where to find solar, thermal, and visible absorptance of building materials?

edit retag flag offensive close merge delete

2 Answers

Sort by ยป oldest newest most voted
4

answered 2016-08-22 21:30:39 -0600

blucu gravatar image

updated 2016-08-24 23:27:04 -0600

Hello, i suggest view some examples of materials with their thermophysical properties go to EnergyPlus console then IDF Editor, open the .idf of ASHRAE materials, then you will see examples of materials with their ASHRAE data values.

here are some values, i had use this page: For the thermal absortance aka emmissivity http://www.engineeringtoolbox.com/emi... http://www.engineeringtoolbox.com/rad...

For the solar absortance aka the complement value for the reflectance or reflectivity values http://www.engineeringtoolbox.com/sol... example: White Dutch tile has an 0.18 solar absortance value, then has an 0.82 reflectance value

edit flag offensive delete link more

Comments

Thanks , but the all absorpatance cells are empty in that file. By the way, I am using energyplus version 8-4

SKG gravatar image SKG  ( 2016-08-23 12:13:01 -0600 )edit
1

answered 2016-08-20 01:57:43 -0600

alireza gravatar image

for windows you can use a software named "WINDOW7" which can couple with energyplus and has the properties of many windows

edit flag offensive delete link more

Comments

I found many for windows, walls and others. But the idea is to get a reference for my data. Can you provide a link for WINDOW7? thanks.

SKG gravatar image SKG  ( 2016-08-20 02:21:47 -0600 )edit
1

Your Answer

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

Add Answer

 

Question Tools

1 follower

Stats

Asked: 2016-08-19 13:08:46 -0600

Seen: 1,429 times

Last updated: Aug 24 '16