Applications of Supercapacitor in Transportation

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Due to their unique Properties, benifits of using Supercapacitors in all mode of Transport domain is as ......

Fuel Savings
Regenerative braking allows a vehicle to absorb kinetic energy during braking and release that energy when starting or accelerating, thus reducing fuel consumption. Start-stop applications enable the engine to shut down when it comes to a stop at a red light or when sitting in traffic. Ultracapacitors then provide a short burst of energy that restarts the engine. This technique delivers significant savings on fuel. In comparison to compressed natural gas buses, the hybrids improve fuel efficiency on average by 88 percent. In summary, the energy captured when a bus slows or stops is converted to stored electrical energy for later use. It is estimated that forty percent of the energy needed to accelerate hybrid bus can be derived from recaptured energy from braking process.

Reduced Greenhouse Gas Emissions
Diesel exhaust contains greenhouse gasses, ozone precursors, benzene, and other toxic substances and is a significant contributor to airborne concentrations of fine particulate matter (PM). As a result, a growing number of cities are turning to hybrid buses, which consume less energy and produce significantly fewer emissions. Hybrid buses / Electric buses are estimated to cut emissions by as much as 75 percent when compared to conventional diesel buses.

Lower Operating Costs
Regenerative braking takes most of the load off mechanical brakes, reducing brake maintenance and replacement expenses. A year-long evaluation in the United States by the National Renewable Energy Laboratory indicated that operational costs for hybrids are 15 percent lower than for conventional diesel buses. Supercapacitors work well in parallel with the batteries by maintaining a level power load during charge and discharge. This reduces the strain on the battery and prolongs battery life. The engines in a hybrid bus may be started and stopped dozens of times on each route. Unlike batteries, Supercapacitors can undergo millions of cycles without significantly impacting their performance or lifespan.

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