RAIL NETWORK IN THE WORLD: A HUGE LEGO TOWER 127.89 x 10 12 J (Railway Handbook 2012, International Energy Agency)

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Presentation transcript:

RAIL NETWORK IN THE WORLD: A HUGE LEGO TOWER

x J (Railway Handbook 2012, International Energy Agency)

( O’Toole,2006) MASS TRANPORT PRIVATE TRANSPORT

IMPULSE MASS TRANSPORTATION (RAILWAY)

Preventing efficiency loss in railway systems: Energy recycling as an additive solution Lior Abulaf – Tamara Covacevich – Nadav Rubinstein

BREAKING SHAPE FRICTION ROUTE

(Jaffery, 2012)

BREAKING SHAPE FRICTION ROUTE

BREAKING SHAPE FRICTION ROUTE

BREAKING SHAPE FRICTION ROUTE

(Railway technical, 2012)

Why regenerative breaking is not enough? Reversion of the electric motor to slow down the train (UIC, 2003) HEAT AUXILIARIES ACCELERATION “a significant amount of the braking energy is dissipated into resistors” (Gil,2014)

Energy recycling : Our proposal OUT OF THE SYSTEM INTO THE SYSTEM

External Aerodynamics of a train (Mira, 2013) 2 MIN BEFORE 1 MIN AFTER

Calculations (considering [Tom Kefalas,2014]) kW 350 USD PER HOUR N° of turbines and savings depending on the system

Where do we use propose to use the recycled energy? Tractive effort and drag as a function of speed (Railway technical, 2011)

Projection s Timetable optimization Energy storage (on board or stationary) Reversible substations (AC/DC) On surface replica Cost and long term understanding

DEVELOPMENT OBSTACLE

OPPORTUNITY