[L5]_Wind Turbine Systems Flashcards
ENGY-775
How is the airflow over a wing affected by changes in angle of attack?
[L5]
The airflow over a wing can be affected by changes in the angle of attack, which can increase or decrease lift and affect the stability of an aircraft.
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ENGY-775
What is the name of the phenomenon that occurs when wind turbines in close proximity to each other can cause reduced efficiency and increased wear and tear?
[L5]
The phenomenon is called wind turbine wake or wake effect
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ENGY-775
What is shadow flickering as it pertains to wind turbines?
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Wind turbine blades cast shadows on buildings, causing shadow flickering. These objects can flicker in sunlight, deceiving epileptics.
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ENGY-775
What are the three (3) types of wind cells per hemisphere?
[L5]
- Hadley Cell
- Ferrel Cell
- Polar Cell
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ENGY-775
What is the purpose of the gearbox in a wind turbine?
[L5]
The purpose of the gearbox in a wind turbine is to increase the rotational speed of the blades to a level that can generate electricity.
[L5]
ENGY-775
What is the name of the process that is used to monitor the structural health of wind turbines to prevent damage and ensure safety?
[L5]
The process is called structural health monitoring, which typically involves using sensors and other technologies to detect changes in the structural integrity of wind turbines over time.
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ENGY-775
What is the highest conventional theoretical efficiency for a wind turbine currently?
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59% Eff
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ENGY-775
Which category of WECs were invented first throughout history?
* HAWTs
* VAWTs
[L5]
HAWTs started in the 12th century of western europe.
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ENGY-775
What is the name of the device that measures the speed and direction of the wind in a wind turbine?
[L5]
The device that measures the speed and direction of the wind in a wind turbine is called an anemometer.
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ENGY-775
What is the name of the process that is used to reduce the noise produced by wind turbines?
[L5]
The process is called noise mitigation, which may involve using specialized blade designs or installing sound barriers.
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ENGY-775
What is CFD?
[L5]
It is the process that is used to simulate the flow of air over a wing using computer modeling and simulation.
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ENGY-775
What is the maximum wind speed that a wind turbine can safely handle?
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The maximum wind speed that a wind turbine can handle is typically around 25 m/s, depending on the specific design and construction.
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ENGY-775
What is the name of the technology that is used to capture the energy from wind that is not directly hitting the turbine blades?
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The technology is called wind energy conversion system (WECS), which can capture energy from wind shear, wind turbulence, and other wind-related phenomena.
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ENGY-775
What is the name of the system that automatically shuts down a wind turbine if wind speeds exceed safe levels?
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The system that automatically shuts down a wind turbine if wind speeds exceed safe levels is called the overspeed protection system.
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ENGY-775
What is the name of the process that is used to optimize the positioning of wind turbines to maximize their power output?
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The process is called wind farm layout optimization, which involves using computer simulations and other tools to determine the most efficient placement of wind turbines.
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