For decades people have used sunshades or blinds to keep out the heat of the sun, or protect themselves for sunrays. Typical sunshades have always been mechanical, and their reliability is not the best. Normal cloth has also been used to take out sunrays, but cloth needs maintenance and also to be replaced every now and then. Both the mechanical solutions and cloth based sunshades are also open for abuse.
Now technology has taken a quantum leap forward, as we can now build into the glass or polycarbonate windows a thin film, which can be electronically controlled so that the end result is like a classic sunshade, but we can actually do much more with it.
If you want to have a quick overview and see the possibilities of this technology, watch this YouTube video.
If we use a train as an example, the heath penetrating the train can be massive when weather is hot and sunny. This makes the passengers feel bad and comfort is bad. The climate control equipment can be overloaded, and most of all, if the sunshades are down, the passengers cannot enjoy the scenery outside. What if the solution could be so simple that the train guard, by just pressing a button, could dim all windows in the train, but in such a way that the heat of the sun would not any more penetrate, and the passengers could still see out and enjoy the scenery? Another possibility would be that every window is separately controlled by the passenger. The latest addition to this technology, is the integration of the passenger information display into a dimmable window. This has many advantages, as it simplifies many things. Now operators do not need to install bulky displays, instead they can use the windows as the displays. This will also simplify cabling, take much less space, and increase reliability, Watch this video about possibilities.
With the Nuance technology 94 % of solar energy is blocked, and UV filtration is up to 99 %. The Nuance film is laminated between panels of glass, poly-carbonate or composite glass. Nuance film contains microscopic particles and regulating the voltage to the film adjusts the particles’ orientation, instantly and precisely controlling the passage of the light, glare and heat through the film. The surface can be flat or even curved. The switching speed (light to dark or vice versa) is between 1-3 seconds, and it is independent of window size.
Power consumption of one window is extremely low (1,1 W/m²), which means that even a small solar panel cell could be installed, and this way the whole window would not need any outside power.
Another big advantage is that the cabin crew can control centrally all windows if needed, but also individuals can control them. There are no mechanical parts involved, which means that maintenance of these windows are basically zero.
Currently dimmable windows are popular within the business jet industry, and more and more planes are fitted out with them. Commercial airliners are currently also being fitted with this interesting technology, This way there is no need anymore for mechanical shades which needs to be open for taxiing, take-off and landing. The yacht industry is also starting to show great interest in the dimmable windows technology. Many boats and yachts have already been fitted out with EDW.
In the train industry we see huge benefits both for passengers and operators - more comfort and less maintenance. Contact us, and we will tell you much more about the benefits and possibilities of the Nuance solutions. Click here to read more and/or contact us.