Trailer Aerodynamics


PROJECT OUTPUT

A package of measures for improving the aerodynamics of refrigerated semi-trailers, including optimised rear end taper and side skirts.

 RESULTS

Results showed a 14% reduction in aerodynamic drag coefficient in modified vehicles.

 % Fuel Saving:

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 7% reduction in fuel consumption at highway speeds
 Cost of implementation:

 £

 Trailers cost £4,500 more than the standard vehicles to produce, with an estimated payback  period  of 2 years and a  lifetime of 10 years.
 Implementation strategy:

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  • Implement now.
  • Designs are available from the research team.
  • First 50 or so trailers have been built by Gray and Adams

References

  1. Stephens, R. G. and H. Babinsky (2014). Boat-tails for Super-market Lorries. Aerovehicles 1, June. Bordeaux
  2. Midgley, W. J. and D. Cebon (2014). Coast-down Testing of Heavy Goods Vehicles.  Centre for Sustainable Road Freight Technical Report CUED/C-SRF/TR06,ISSN: 2054-4081,University of Cambridge.