Technologies - Bogie fairings

Technologies

Bogie fairings

evaluated

In most trains the bogie area is uncovered up to the height of the wheel. In high speed trains, bogie covers may substantially reduce air resistance.

Technology field: Aerodynamics and friction



General information

General criteria

Environmental criteria

Economic criteria

	Vehicle - fix costs: low
		For retrofit measure there will be high costs for dedicated design and development for a particular train series. The fix costs per train will therefore strongly depend on the number of trains in a series. If covered bogies are integrated into the design of new stock in the first place, additional costs will be very low to negligible.

	Vehicle - running costs: significant reduction
		Given the huge energy saving potential per vehicle, running costs are substantially reduced. According to calculations on the basis of present operating costs for European HST routes, bogie fairings would allow typical savings of between 5 and 10 million EURO to be effected in annual energy outlay for the various HST fleets.

	Infrastructure - fix costs: none
		(no details available)

	Infrastructure - running costs: unchanged
		(no details available)

	Scale effects: medium
		For retrofit measures there will be scale effects for each train series since fairings have to be individually designed for a given train type. This is expensive and will make sense only for reasonably large numbers.

	Amortisation: (no data)
		For a retrofit measure, amortisation will depend strongly on the number of trains retrofitted.

Application outside railway sector (this technology is railway specific)

Overall rating