Optimal Wind Turbine Blades for Australia: A Comparison of Vertical and Horizontal Axis Turbines
Added on 2022-10-19
18 Pages1140 Words204 Views
Design optimal of wind
turbines blades for Australia
turbines blades for Australia
Australian climate conditions.
• Australia suffers from strong winds.
• Wind gusts.
• weather chaos: winds, snow, wild surf and rain lash Victoria, South Australia, Melbourne and
NSW.
• MPH am MPH pm City KPH am KPH pm
• 6.5 9.9 Adelaide, South Australia 10.4 15.9
• 5.0 8.9 Albury, New South Wales 8.0 14.3
• 11.9 13.5 Ballarat, Victoria 19.2 21.8
• 8.2 10.7 Bendigo, Victoria 13.2 17.3
• 7.8 12.1 Brisbane, Queensland 12.6 19.5
• 9.6 12.6 Bunbury, Western Australia 15.5 20.2
• 8.5 12.0 Cairns, Queensland 13.7 19.3
• 5.2 11.1 Canberra, Australian Capital Territory 8.4 17.8
• 7.6 11.4 Darwin, Northern Territory 12.2 18.4
• 11.2 15.3 Geelong, Victoria 18.1 24.6
• 10.5 14.5 Gold Coast, Queensland 16.9 23.3
• 3.7 5.8 Gosford, New South Wales 6.0 9.3
• 9.4 11.4 Hobart, Tasmania 15.1 18.4
• Australia suffers from strong winds.
• Wind gusts.
• weather chaos: winds, snow, wild surf and rain lash Victoria, South Australia, Melbourne and
NSW.
• MPH am MPH pm City KPH am KPH pm
• 6.5 9.9 Adelaide, South Australia 10.4 15.9
• 5.0 8.9 Albury, New South Wales 8.0 14.3
• 11.9 13.5 Ballarat, Victoria 19.2 21.8
• 8.2 10.7 Bendigo, Victoria 13.2 17.3
• 7.8 12.1 Brisbane, Queensland 12.6 19.5
• 9.6 12.6 Bunbury, Western Australia 15.5 20.2
• 8.5 12.0 Cairns, Queensland 13.7 19.3
• 5.2 11.1 Canberra, Australian Capital Territory 8.4 17.8
• 7.6 11.4 Darwin, Northern Territory 12.2 18.4
• 11.2 15.3 Geelong, Victoria 18.1 24.6
• 10.5 14.5 Gold Coast, Queensland 16.9 23.3
• 3.7 5.8 Gosford, New South Wales 6.0 9.3
• 9.4 11.4 Hobart, Tasmania 15.1 18.4
Classification of wind turbines
Turbines can be categorized according to.
1. Rotor axis. The direction of the rotational axis.
• The Horizontal Axis Wind Turbine (HAWT). Rotational axis parallel to the
ground.
• Vertical Axis Wind Turbines (VAWT). Axis perpendicular to wind direction.
2. Lift or drag.
• Drag types. E.g. water pump, anemometers. Move slower but have high
torques.
• Lift type. Uses aerodynamic aerofoil to create lift.
Turbines can be categorized according to.
1. Rotor axis. The direction of the rotational axis.
• The Horizontal Axis Wind Turbine (HAWT). Rotational axis parallel to the
ground.
• Vertical Axis Wind Turbines (VAWT). Axis perpendicular to wind direction.
2. Lift or drag.
• Drag types. E.g. water pump, anemometers. Move slower but have high
torques.
• Lift type. Uses aerodynamic aerofoil to create lift.
Comparison between vertical axis wind
turbines and horizontal axis wind turbines
1. Wind direction and speeds.
• HAWT. Wind flows perpendicular to blade. When wind blows at
different angles, other than 90 degrees, the turbine harvests less
wind energy. The turbines have a YAW MECHNISM to make sure that
wind blows perpendicular to the blade. Dynamic stall happens when
the wind velocity is small.
• VAWT runs well regardless of the direction of wind. Lower speeds
available.
turbines and horizontal axis wind turbines
1. Wind direction and speeds.
• HAWT. Wind flows perpendicular to blade. When wind blows at
different angles, other than 90 degrees, the turbine harvests less
wind energy. The turbines have a YAW MECHNISM to make sure that
wind blows perpendicular to the blade. Dynamic stall happens when
the wind velocity is small.
• VAWT runs well regardless of the direction of wind. Lower speeds
available.
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