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7 Responses
I thionk they spin
Assuming they use a generator:
The rotational kinetic energy of the turbine (provided by the wind) turns a wire through a magnetic field. When a wire passes through a magnetic field, electrons flow through the wire, and electrical current is produced.
From a thermodynamic perspective, they’re using an electrical generator to convert kinetic energy into electrical energy.
It has nothing to do with Thermal Dynamics, Electricity is generated the same way that all turbines generate electricity. A copper coil is rotated around a large magnet. Wind turbines use the wind to turn the blades which in turn spin the turbine. Hydroelectric plants burn some type of fuel that is used to make steam that turns the turbines. Nuclear plants use a nuclear reactor generate the heat that powers the turbines, and so and so forth.
the wind blows over the curved blades and this spins the turbine engine. the engine had windings, or wire that is wrapped around a rod, as it turns on the shaft, like a bicycle tire, it touches places or points around the out side, those connect to wires that connect to a over/under voltage and amp. meter. This meters the power produced and passes it down the line for service, or if a home unit is used, to a battery for storage until needed.
This question has absolutely nothing to do with thermodynamics. Thermodynamics involves analyzing systems and their thermal properties. A turbine is a dynamic system but it has nothing to do with thermal properties. There are of course thermal properties at work, but you would never want to analyze the system in this respect.
Wind turbines are designed to exploit the wind energy that exists at a location. Aerodynamic modeling is used to determine the optimum tower height, control systems, number of blades, and blade shape.
Wind turbines convert wind energy to electricity for distribution. The turbine can be divided into three components. The rotor component, which is approximately 20% of the wind turbine cost, includes the blades for converting wind energy to low speed rotational energy. The generator component, which is approximately 34% of the wind turbine cost, includes the electrical generator, the control electronics, and most likely a gearbox component for converting the low speed incoming rotation to high speed rotation suitable for generating electricity. The structural support component, which is approximately 15% of the wind turbine cost, includes the tower and rotor pointing mechanism. Below is an article I found that you might find interesting.
Is this a question from PHY101Y….
for the 2nd assignment?