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RSS FeedsEnergies, Vol. 12, Pages 2353: Prediction of Performance of a Variable-Pitch Axial Fan with Forward-Skewed Blades (Energies)

 
 

19 june 2019 13:00:17

 
Energies, Vol. 12, Pages 2353: Prediction of Performance of a Variable-Pitch Axial Fan with Forward-Skewed Blades (Energies)
 




For a single-stage variable-pitch axial fan, the aerodynamic performance and through flow with and without blade skewing are examined numerically. Simulated results show that the total pressure rise and efficiency increase by 2.99% and 0.16%, respectively, with the best forward-skewed angle of θ = 3° at the design conditions. At the blade pitch angles of β = 29° and 35°, the total pressure rises and efficiency of the fan with θ = 3.0° under the highest efficiency point change by −0.55%, −0.53% and 1.39%, 2.11%, respectively. At design and off-design conditions, the forward-skewed blades mitigate tip leakage and delay the emergence of separation flow at the blade root, these benefits are higher at the higher blade pitch angle. The θ = 3.0° forward skew effectively raises the stage performance of the impeller and guide vanes.


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21 viewsCategory: Biophysics, Biotechnology, Physics
 
Energies, Vol. 12, Pages 2354: Design and Analysis of New Harbour Grid Models to Facilitate Multiple Scenarios of Battery Charging and Onshore Supply for Modern Vessels (Energies)
Energies, Vol. 12, Pages 2352: An Innovative Design of Regional Air Conditioning to Increase Automobile Cabin Energy Efficiency (Energies)
 
 
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