*Smart Window Glass :Glass of Future

SHAHRUKH SUFIYAANCOMP. SCI. ENGG.ROLL NO. - 1200112199

Contents• Introduction – What  is SMART GLASS ?• Types of Smart Glasses• Benefits• Technology• Future of Smart Glass• Why use Smart Glass ?

Introduction : Smart GlassSMART GLASS or switchable glass (also smart windows or switchable windows) is glass or glazing whose light transmission properties are altered when voltage, light or heat is applied. Generally, the glass changes from translucent to transparent, changing from blocking some wavelengths of light to letting light pass through. Window glass that can tint on demand is pretty slick.

Types of Smart Glass :

Lets take each type one by one.

Liquid Crystal :

• Allows light flow with privacy.

• Used for privacy control.

• Changes on demand with an  electric current.

Advantages: Privacy at the flip of a switch, no window coverings needed.

Disadvantages: Does not conserve energy.

Low‐E•Traditionally used energy efficient glass.

•Glass treated with invisible metallic coating to reflect or trap light & heat.•Reduces the amount of ultraviolet light  that enters your home without  blocking  visible light.•Advantages:  Limits UV rays, reduces energy bill, prevents  furniture from fading, reduces sound levels in home.

•Disadvantages:  More costly than regular glass, slight  haze to windows,  no manual control, no control over visible light.

Thermochromic•Tint level based on temperature of the  material.

•Adapts directly to changing sunlight intensity.

•Combined with low‐e technology.

•Advantages: Continuously adapts tint to sunlight to manage heat & glare, installation is as same as  traditional windows, No power supply needed. •Disadvantages: Cannot be manually controlled glass may not  receive enough heat from direct  sunlight to darken, added weight  to insulated  glass units.

Electrochromic• Electrical current creates chemical reaction  causing window to tint.

• Depending on electrical current, selectable darkness allows more control over sun levels.

• Current is not required to maintain tint levels, only to change  colour states.

• Very little current needed (power  entire building of electro chromic windows equal to one light bulb).

Benefits● It’s easy cleaning.● It’s saves money & keeps the house cool. ● It blocks UV-Rays & protects furniture.● It doubles as a protection screen.

Technology in Smart Window

It has four technologies which are as follow :

1. Photochromic or photo chromatics.2. Liquid Crystals.3. Suspended Particle Displays.4. Electrochromics.

Future of Smart Glass :• Increase cost efficiencies.• Integration of smart glass with other electrical systems within  such as the HVAC & lighting  systems.• Photovoltaic smart glass generating electricity  while darkening windows with  thin film of PV panel.• Wireless systems.• Other electronics in glass such as thermometers  or display.

Why use Smart Glass?...● Control the amount of privacy, light & heat that enters a space manually or automatically.● Switch instantly or dim anywhere in between.

● No need for curtains.

THANK YOU !!