1. Aalborg University, Denmark mir@et.aau.dk
Paper No: TD0141
An Experimental Analysis of the Effect of Icing on Wind Turbine Rotor Blades
Raja Muhammad Imran, D. M. Akbar Hussain, Mohsen Soltani
Aalborg University, Denmark

2. Background Power extracted is a function of coefficient of power (Cp).
Experimental investigation of the aerodynamic changes due to icing
Tested three small scale model of the NREL’s 5MW rotor blade in a Wind Tunnel.
Lift, drag and moment coefficients are calculated
WT-Perf is used to predict the performance of wind turbine.
Cp curves generated from the test are compared
What is the background of this project?
What did you do?
Why did you do it?
What did you expect as an outcome before you started?

3. Experiment Method
Source: Martin O. L. Hansen, Aerodynamics of Wind Turbines, 2nd ed. Earth- Scan, London, ISBN:

4. Experiment Limitations
Coefficient values from the experiment at 60% radius of the blade
Coefficient values from the mean value of 200 samples
Cylindrical mounting shape to fit the wind tunnel device
Entire blade is made from the same material
WT-Perf with only one Reynolds number

5. Results
What did you discover/find out?

6. Results

7. Conclusions/Recommendations
Wind Tunnel Experiment test procedure
Peak value of Cp reduced and shape unchanged lead edge ice
Peak value of Cp reduced and shape changed for lead-trail edge ice
Maximum Cp value reduce with the increase of ice
Need for adaptive mechanism
Shape changed should be accommodated in control
What does your paper conclude?
What further research is required?
Are there any differences from what you expected?
PLEASE DO NOT ADD SLIDES. YOU ARE ONLY ALLOWED 7 SLIDES TOTAL AND 7 MINUTES TO PRESENT THEM

8. Thanks for your attention!