Magazine serving the bus and rail transit & motorcoach operations since 1904
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www.espar.com www.actusa.us.com Toll Free: 877.228.4247 ACT & Espar A ChAmpionship TEAm with an all-star lineup of HVAC products for the North American Bus Market! ACT, proAir & Espar Climate systems teamed up to offer the school, shuttle, Coach and Transit Bus markets a single point of contact for all their Bus hVAC sales and service needs. 127 SEPTEMBER/OCTOBER 2014 m ETRO m AGAZINE > tech report sion, as well as support an electric vehi- cle charging station at the rail terminal. Ultracapacitors are able to signifcantly reduce energy waste by converting the kinetic energy from the rail into stored electric energy. In this station, ultraca- pacitors recover 8% to 10% of the to- tal energy used by the railway system for reuse, creating a more sustainable operation. If the energy recuperated is not enough to completely power the EV charging station, the rail system also in- tegrates a solar photovoltaic system to supply additional energy. Across the various applications, ultra- capacitors ofer a green, maintenance- free way to increase reliability of systems to increase energy efficiency. Through their increased adoption, they can help support wider renewable energy eforts and reduce carbon emissions in the transportation industry. Dr. Kimberly McGrath is director, business development for Maxwell Technologies. Follow Maxwell on Twitter: @Maxwell_Tech hicles to support alternative means of transportation. In hybrid-electric bus systems, ultra- capacitors can provide an alternative energy solution to reduce carbon emis- sions for cleaner air and increased en- ergy efciency. Ultracapacitors provide power for the initial acceleration of the bus, so the vehicle can operate on a hy- brid engine that is half the size of a tra- ditional diesel engine. They can also improve acceleration per for mance, increase energy-recapture capabili- ty and increase driving range on a sin- gle charge. Tis allows the vehicle to cut down on fuel costs by 25% to 30%, which will pay for the additional cost of the hy- brid system. In Cerro Negro, Spain, ultracapaci- tors are being used in an electric rail sys- tem to improve energy efciency in the country's public transportation. Win Inertia, an engineering frm specializ- ing in power electronics, energy stor- age and control, and communication systems, was contracted by the Spanish government's Administrator of Rail- way Infrastructures (ADIF) to design and install the hybrid system in an ef- fort to reduce energy waste and increase transportation reliability. Trough rap- id charge-and-discharge cycles, ultra- capacitors in this application are able to recuperate energy as the rail vehicle brakes to power the vehicle's propul- Ultracapacitors are used in a variety of industries ranging from automotive, rail, truck and bus, amongst others. Melcoman en Ferropedia