Northwind Engineering OÜ

consulting engineers in wind energy

Experienced engineers in wind turbine design, modeling and validation.
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we can help you

what we offer

performance & loads calculations

Modeling and analysis of the entire turbine from specific cases to full certification load sets.

  • simplified load modeling (iec 61400-2)
  • aeroelastic modeling (fast, hawc2, bladed)
  • component structural analysis (analytical, fea)
  • CERTIFICATION DOCUMENTATION
  • POWER CURVE & AEP CALCULATIONS

power curve & loads validation

Design validation using simulations and measurements

  • Comparison of simulations and measurements
  • troubleshooting, diagnostics and solutions
  • Controller tuning
  • prototypes
  • customer turbines
  • wind farms

New designs

We can make sure you have the best offering

  • conceptual design exploration
  • system level design & optimization
  • aero-structural blade design optimization
  • 2d & 3d drawings

upgrades and new technologies

Create new revenue streams with upgrade offerings

  • blade add-ons
  • modeling new features and concepts
  • technology development and integration

we've done it

project experience

development of passive mechanical blade pitch angle control system

• Development of analytical model for design optimization
• Loads and performance simulations using FAST aeroelastic code
• 3D CAD drawingss, FEA analysis and 2D production drawings
• Integrated pitch angle sensor
• Prototype assembly
• Field validation on test turbine

10KW wind turbine CERTIFICATION TO CLASSNK (JAPAN)

• Simple load model calculations to ClassNK standards (passes also IEC 61400-2 / AWEA 9.1)
• Component stress analysis (analytical & FEA)
• Power curve & AEP calculations
• Certification documentation
• Cooperation with certification authorities (Intertek)

POWER CURVE VALIDATION & OPTIMIZATION

• Experience with MW and kW scale turbines
• In depth performance analyses considering blade soiling, turbulence, shear, veer, shadowing
• Controller tuning for optimum production

blade and upgrade kit design

• Design of blade add-ons for power curve upgrades of MW scale turbines (trailing edge flaps, vortex generators, gurney flaps, winglets)
• Selection of appropriate airfoils for new blade design
• Blade outer geometry design for optimal aerodynamics using PROPID code

WIND TUNNEL TESTING

• 2D airfoil tests at TU Delft and Deutsche WindGuard wind tunnels
• Full rotor testing at UW Large Scale Wind facility

DEVELOPMENT OF ACTIVE FLAP FOR WIND TURBINE

• Simulation of active flap operating on 4MW turbine using HAWC2 code
• Analysis of field tests of active flap on outdoor test rig

20kW wind turbine design

• Conceptual design support
• Load calculations with SLM according to IEC 61400-2

your project here

We want to work with you!

we have the people

team

Drew Gertz, MASc.

• Founded Northwind Engineering OÜ in 2017
• Specialist in wind turbine loads and performance
• 5+ years R&D experience in Danish wind industry

Michael Keumatio, B.Eng.

• MASc. student in sustainable energy
• Experience in mechanical design, manufacture, and testing.

Giorgio Demurtas, PhD.

Specialist in wind turbine electrical, design, controls and measurements.

Strong network

Our years of experience in industry and academia have resulted in an excellent network of contacts and advisors that we leverage strategically to enhance our capabilities.

we want to hear from you

get in touch

Address

Narva maantee 3, 51013 Tartu, Estonia

Phone number

+372 5565 0147

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