In electricity generation, a generator is a device that converts motive power (mechanical energy) into electrical power for use in an external circuit. Sources of mechanical energy include steam turbines, gas turbines, water turbines, internal combustion engines, wind turbines and even hand cranks.
How is mechanical energy converted to electrical energy in a windmill?
A wind turbine transforms the mechanical energy of wind into electrical energy. A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the blades. These blades turn a generator.
What are examples of energy transformation?
What are some examples of energy transformation?
- The Sun transforms nuclear energy into heat and light energy.
- Our bodies convert chemical energy in our food into mechanical energy for us to move.
- An electric fan transforms electrical energy into kinetic energy.
How is wind energy stored for later use?
Wind turbines can use excess power to compress air, this is usually stored in large above-ground tanks or in underground caverns. When required the compressed air can be used through direct expansion into a compressed air motor.
What are the three types of wind energy?
There are generally speaking three main types of wind turbines: utility scale, offshore wind, and distributed, or “small” wind.