Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Surface Radiation Absorptivity

Radiation surface absorptivity.

Absorptivity can be defined as

  • the ratio of power absorbed to the incident radiant power

For emissivity and emitted light absorptivity is the amount of radiation absorbed by a surface compared to what is absorbed by a black body.

Surface Radiation Absorptivity
SurfaceAbsorptivity
Aluminum, anodized 0.14
Aluminum, dull/rough polished 0.4 - 0.65
Aluminum. polished 0.1 - 0.40
Asbestos Cement, old 0.83
Black matte 0.95
Brick, red 0.65
Chromium plate 0.20
Concrete 0.6
Iron, galvanized old 0.89 - 0.92
Grey paint 0.95
Light green paint 0.95
Limestone 0.33 - 0.53
Red clay brick 0.94
Snow, ice granules 0.33
Steel, galvanized (zink oxide) 0.65
Steel, galvanized weathered 0.8
White paint 0.25 - 0.4

Related Topics

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2011). Surface Radiation Absorptivity. [online] Available at: https://www.engineeringtoolbox.com/radiation-surface-absorptivity-d_1805.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































4.19.9

.