Scania Climatic Wind Tunnel

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Presentation held at Scania Capital Markets Day, 19 September 2013 by Christer Ramdén, Head of Vehicle Performance Testing

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Scania Climatic Wind Tunnel

  1. 1. Climatic Wind Tunnel Christer RamdénChrister Ramdén Head of Vehicle Performance Testing
  2. 2. Scania Technical Centre Everything in one place
  3. 3. Scania’s R&D focus New segments Growing Fuel efficiency and uptime Environmental performance New segments and applications Growing volume in Asia, Africa, Eurasia
  4. 4. Climatic Wind Tunnel  Unique facilityq y  Climate testing for all markets/weather conditions – warm, cold, rain, humidity R titi t ti Repetitive testing conditions  Fuel efficiency uptime Fuel efficiency, uptime, driver environment, emissions
  5. 5. Facility overview Nozzle size 13 m²  Bus and truck testing Wind speed 0-100 km/h Dyno performance ± 800 kW, ± 120 kN Temperature -35ºC / +50ºC Humidity 5-95% RH  Rain and soiling (UV-chemical)  Aeroacoustic testing  Snow and solar simulation  Emission analysis
  6. 6. Operating conditions – Rain  Water intrusion in air intake  Wiper functionWiper function  ACC performance during rain, humidity  Mist removal
  7. 7. Operating conditions - Snow  Snow clogging on front lids  Snow intrusion in air intakeSnow intrusion in air intake  Snow clogging of filters  Wiper and defroster functions
  8. 8. Operating conditions – Sun  Radiation intensity: 400-1,100 W/m²  Radiation of front, roof and cab sidesRadiation of front, roof and cab sides  Cloud and tunnel functions  Testing of ACC performance in trucks
  9. 9. Soiling test  0.5% fluorescent added to rain water  Contamination of sides, door handlesContamination of sides, door handles  Windscreen and side window visibility  Soiling of exterior driving mirrors
  10. 10. Aero acoustic testing  Wind noise can be measured during stable and repeatable Wind noise can be measured during stable and repeatable conditions, also with a lateral wind flow.  Requirement: Background noise level ≤76 dB(A) at 90 km/h. The acoustic treatment solution includes circuit wall liningThe acoustic treatment solution includes circuit wall lining, turning vanes and baffles, and test section lining.
  11. 11. Application testing  Trucks, buses and tractors  Variable wheel base settingVariable wheel base setting  FCD for improved air flow  Supply of different fuels
  12. 12. Advantages of Climatic Wind Tunnel  Higher quality in new productsg q y p  Shorter project lead times  Better fuel economy and lower Better fuel economy and lower environmental impact  Improved driver environment d b tt f tand better safety

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