The WIRAS turnout is an entirely new design railway turnout. The WIRAS turnout will function in winter conditions without a railway turnout point heater. No high energy bills and no CO2 emission anymore. Because of much troubles and problems every winter with turnouts and turnout-heaters of the Dutch Railways (Nederlandse Spoorwegen) which causes many train-traffic delays, we have developed a new mechanical working principal (a new design) for railway-turnouts during the last 5 years. This new design turnout is not fitted with horizontal movable tongues, and because of that, snow and ice have no impact on the correct working of the turnout ! and because of that it needs NO turnout heating at all ! The problem with horizontal movable tongues (a design of more than 100 years old) is that snow and ice can be falling in between the tongue and the stock-rail. For that you need an expensive and reliable high power turnout-heating (10kW - 15kW) for every turnout which must stay switched-on for two or three months every winter. That will result in high energy- and maintenance bills. Instead of open horizontal movable tongues, the WIRAS turnout is fitted with vertical movable tongues which can slide up and down between four guides which forms a closed box around each tongue. Snow and ice have no chance to fall in or creep in between mechanical parts of the turnout. The vertical movable tongues are driven by a set of hydraulic short stroke cylinders, and are locked in position by mechanical horizontal moving locking bars. The rail-tongues (points) and the locking-bars can be driven electro-mechanically or electro-hydraulically. The WIRAS turnout will function in winter conditions without a railway turnout point heater. That means : No more train traffic delays in winter because of snow and ice disturbing correct functioning of railway turnouts. That saves much money. No high energy bills and no CO2 emission anymore for the high energy consuming point heating systems which must stay working long time in winter periods. (15kW per turnout in some cases) Also disfunctioning heating systems are history now because there are no heating systems needed anymore ! Further there is no need for manufacturing, buying, installing, inspecting, maintaining, repairing and monitoring of heating systems because there are no heating systems needed anymore ! The WIRAS turnout can replace conventional turnouts which are fitted with a heating system. At this moment the WIRAS turnout is discussed in The Netherlands with turnout manufacturers : Vossloh Cogifer and Voest Alpine , The Dutch Railways NS and ProRail (the Dutch rail-infrastructure adminstrator) The WIRAS turnout is patented and is applicable for both train and tram rail-infrastructure.
Below a calculation example of the savings which can be achieved with the WIRAS turnout on one year basis (Deutsche Bahn DB) : Electric Power one point heater : 10kW Amount of heated railway turnouts in Germany : 22567 Average time in 2012 when pointheaters were switched on in Germany : 1440 hours Price for one kWh : Euro 0,07 For producing one kWh 0,7 kg CO2 is emitted. When the WIRAS Turnout will be applied in the DB Netz : • Energy savings each year in Germany : 10kW x 22567 Turnouts x 1440 hours = 324.964.800 kWh • Savings in costs for electricity each year is 324.964.800 kWh x 0,07 Euro = 227.475.36 Euro ! • Savings in CO2-emission each year is 324.964.800 kWh x 0,7 kg = 227.475.360 kg • Further huge saving can be made because DB Netz does not need to purchase, install, inspect, monitor, replace, and repair expensive point heaters anymore. • But the most important : There are no train traffic delays anymore because of malfunctioning turnouts in winter. The WIRAS turnout will function 100% in winter conditions ! • Serial production of the WIRAS winterproof railway turnout is not more expensive than conventional turnouts as we use today. It has a very simple mechanical setup.
One full-functional 1 to 6th stainless steel scale-model is build as a demonstrator for everyone who want to see the whole design work in real during displaying and demonstrating at indoor meetings, exhibitions and technical presentations. This scale-model is a high detailed representation of the real scale WIRAS winterproof turnout, and can be easily transported because its weight is only 90kg and its dimensions are 1300mm x 900mm. This WIRAS scale model is full digital and is programmed and controlled by laptop, and has high power digital servo’s as actuators. For requests for in house technical presentations and demonstrations, please contact us by email.
Photo's, High Resolution Render Images, Infographics, Animation-video's, Technical Drawings, Presentation Posters or other official technical or engineering documents like design calculations or life cycle reports, can be sent to you on request. Please contact us by email. Click on the black eye to view the larger image.
The functional description of the WIRAS Winterproof Railway Turnout below explains and describes in short how the design works step by step
For questions or comments, please contact us by email : email@example.com