Post by Deleted on Dec 27, 2007 21:36:52 GMT
The trolleybus has so far shown to be better than diesel buses in many areas. "The environmental aspect is the leading advantage. In our trials, the trolleybus does not need engine oil and filter changes, avoiding a lot of waste. It also produces no exhaust gas, even when stationary with the air-conditioning on, and is quieter than buses," said John Blay. The trolleybus also shows superior performance. Even when fully loaded, the trolleybus accelerated more quickly, and was better at hill climbing than an equivalent diesel bus,"
To enhance the power efficiency of the trolleybus network, Citybus installed a flywheel energy storage system, which preserves the electrical power produced when the trolleybus is braking, and then releases that power for the trolleybus to accelerate or climb a hill, reducing the electricity needed by about 15 percent.
By contrast, diesel buses consume fuel, even when stationary. "We downloaded computer data recorded on a Route 10 bus, running between Kennedy Town and North Point. The data showed that during any operational day, the bus is stationery for about 43 percent of the time. Though the bus is stationary, the engine is still running, burning fuel and producing exhaust pollution. In these circumstances, a trolleybus is more environmentally-friendly,"
The Citybus trolleybus is fitted with air-operated boom bases, which enable the trolleybus driver to rewire at designated points with rewiring troughs. "We envisage trolleybuses will leave the service depots and travel to the trolleybus network on the auxiliary power unit (diesel), and join the network at these rewiring troughs,"
To enhance the power efficiency of the trolleybus network, Citybus installed a flywheel energy storage system, which preserves the electrical power produced when the trolleybus is braking, and then releases that power for the trolleybus to accelerate or climb a hill, reducing the electricity needed by about 15 percent.
By contrast, diesel buses consume fuel, even when stationary. "We downloaded computer data recorded on a Route 10 bus, running between Kennedy Town and North Point. The data showed that during any operational day, the bus is stationery for about 43 percent of the time. Though the bus is stationary, the engine is still running, burning fuel and producing exhaust pollution. In these circumstances, a trolleybus is more environmentally-friendly,"
The Citybus trolleybus is fitted with air-operated boom bases, which enable the trolleybus driver to rewire at designated points with rewiring troughs. "We envisage trolleybuses will leave the service depots and travel to the trolleybus network on the auxiliary power unit (diesel), and join the network at these rewiring troughs,"