Stefan Sperling

Experience

• 

  Bombardier Transportation

  Oct 2006 - Feb 2021

  Responsable for metro, regional and high speed projects and BIDs regarding aerodynamic and thermodynamic. Expert in Train resistance, cooling of equipment, Design for extreme climate conditions ( Sand & Dust and Winter conditions), climate chamber tests and supervising of CFD calculations. #EN13129, #EN14750, #14813, #14067-4 Development and programming of a train energy performance calculation tool to derive the energy consumption during the BID and design phase.Execution of wind tunnel campaigns

  • Technical Expert in Aerodynamics

    Apr 2016 - Feb 2021

  • Specialist Engineer for Aero- & Thermodynamics

    Oct 2006 - Mar 2016
• 

  Alstom

  Feb 2021 - now

  Senior Expert in Thermodynamics & Aerodynamics

  Responsible for Metros, Regional and High speed train regarding:- Winterization, preparing trains to endure in severe winter times- Air duct concept design, enabling climatic comfort in trains- Ensuring u - value, defining insulation material- Equipment cooling, defining air grids, filters and ensuring cooling air flow- Determining running resistance, permitting low energy consumption- TSI authorisation, ensuring track access e.g. during severe winter conditions#EN14813, #EN14750. #EN13129, #EN14067-4, #EN50125. #TR16251, #TSI Show less