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Flywheel energy storage

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The use of a flywheel as an energy storage device is not new. The conventional heavy, metal flywheel as connected to the crankshaft of an internal combustion engine, is used as an energy storage device, releasing its energy in order to maintain momentum during the idle strokes of the engine. The mechanical KERS system has been made successful by producing a flywheel of low mass, small size, running at high speeds.The energy stored in a flywheel is given by the following formula: E =...

KERS explained

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KINETIC ENERGY RECOVERY SYSTEM (KERS) EXPLAINED KERS is a collection of parts which takes some of the kinetic energy of a vehicle under deceleration, stores this energy and then releases this stored energy back into the drive train of the vehicle, providing a power boost to that vehicle. For the driver, it is like having two power sources at his disposal, one of the power sources is the engine while the other is the stored kinetic energy. What is kinetic energy (KE) Kinetic energy is the...

KERS at Le Mans

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Having looked last month at the McLaren Mercedes KERS system, this month we will investigate the use of energy recovery systems in La Sarthe, the home of the Le Mans 24 Hours. The ACO (Automobile Club d’Ouest, organisers of the Le Mans 24 Hours) currently incorporate the following section into the technical regulations for LMP1 cars in the ALMS and at Le Mans itself (see end of feature). KERS is currently only utilised in an ACO sanctioned series by the Corsa Motorsports Ginetta Zytek...

KERS Success

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The veil of secrecy which has surrounded Formula One’s most successful KERS system was partially lifted recently when Zytek Automotive were unveiled as motor and power electronics supplier for the Formula One KERS system as fitted to the 2.4 litre Mercedes-Benz FO 108W V8 engine.The KERS system was developed and brought up to racing standard in 24 months by Mercedes-Benz High Performance Engines in collaboration with Daimler / Mercedes-Benz Research & Development. Zytek were one of...

KERS put to the test

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RET recently attended the 2009 UK Formula Student competition at the Silverstone circuit in Northamptonshire. Of the total 87 teams from 16 countries, seven were in Class 1A, of which four were from the UK. Class 1A is the competition’s low carbon category. Teams are encouraged to use green technology and alternative fuels to reduce their CO2 emissions. In an additional challenge, the teams calculate the CO2 and energy that are used during manufacture of the car. Teams compete in all...