Newport Partners LLC
Home | Technologies | Windows | Glass Coatings for Selective Infrared Reflection

Courtesy of Ivan Parkin and Troy Manning

The coating viewed from above (top)
and in cross section (bottom).


Glass Coatings for Selective Infrared Reflection

A glass coating technology that can selectively "know" when to reflect infrared rays based on ambient temperature was recently highlighted in Discover Magazine (Webb, 2004). This smart-glass technology can be designed to deflect the sun's warming infrared rays at times when cooling is needed, and to allow them to pass at other times when they are beneficial.

The glass coating relies upon vanadium dioxide molecules doped with tungsten to form a layer which selectively reflects infrared on hot days. At low temperatures, vanadium dioxide is transparent to infrared. Yet as the temperature rises, the bonding between the molecules changes and the material becomes reflective, like a metal. The amount of tungsten determines where this change occurs; a 2 percent mix makes it happen roughly at a comfortable room temperature. Parkin and Manning hope to overcome the coating's yellow-brown tone, which is unappealing to builders. They estimate that intelligent-glass windows could be on the market within five years, costing about 20 percent more than the ordinary kind. Given the ability to reduce heat gain through glazing, this technology could offer significant energy savings through reduced air-conditioning costs.

Reference:
Webb, Sarah. "Glass That Keeps Its Cool", Discover Magazine, November 2004.

 

 

 

 

 

 

 

 

 


  HVAC
 
  Plumbing
 
  Energy Efficiency
 
  Renewable Energy
 
  Electrical/Power/
Lighting
 
  Roofing
 
  Walls/Paint/Flooring
 
  Structural/Insulation/
Siding
 
Windows
 
  Mold/Moisture
 
  Software
 
  Disaster-Resistance
 
  Miscellaneous
 

 

Contact us if you have a new technology or innovation for marketing services.


Facebook Twitter LinkedIn YouTube
Site created by Purple Clover Design

Newport Partners, LLC
Ph: (301) 889-0017 • Fax: (301) 889-0019
GSA Schedule