This is the video that we are promoting wind power generation to elementary school students. And here are the things that we are talking about:
What is wind power generation?
Wind energy is converted through wind turbines, which use air movement (i.e., wind) to rotate blades to generate electricity.
Types of wind power generation
off-grid system
Mains parallel type
Hybrid (hybrid with diesel engine/solar electric)
Geographic distribution of wind power generation
Onshore wind turbines: usually set up in wide areas such as farmland, ridges, coastlines, windbreaks and deserts, with a minimum wind speed requirement of greater than 5 m/s.
Offshore wind turbines: The installation area should be in an area with a water depth of 5 meters. In order to reduce the impact on terrestrial ecology and coastal fisheries, it is recommended to set up within a wide buffer area 5 kilometers away from the coastline.
What are the pros and cons of wind power generation?
Pros
1) Clean energy
2) Renewable resources
3) Economic benefits
Cons
1) Visual and sound effects
2) Ecological impacts of birds and bats
3) Limited suitability
The status of wind power
As a type of renewable energy, wind power occupies an important position in the global energy structure. It has: Wide distribution of resources Costs are gradually falling Advantages such as continuous technological innovation Therefore, it plays an important role in reducing greenhouse gas emissions and achieving energy transition.
What's the internal structure?
Spindle (Hub and Shaft):
Dynamo
Gearbox
Control System
How wind power generation works
The wind power generation system mainly consists of windmill blades, rotating shafts, gear boxes, generators, towers, etc. When the windmill blades are driven by the wind to rotate, the rotating shaft drives the gearbox to rotate, and the gearbox drives the generator to rotate, ultimately converting mechanical energy into electrical energy.
What are the future developments?
Technological innovation and efficiency improvement
Community engagement and environmental considerations
Integration of power production and storage technologies
Q&A
This is the video we promote wind power generation to middle school students, we use the same slide to teach them about wind energy generation. Although we present the same slide and teach them the same thing as we teach elementary school, we add in something different this time - actual operation of making a wind energy generation by themself. What we do first is to separate them into six groups. Then, we start giving material and machines which can detect how much Voltage the wind energy generation produces. Next, we teach them how to build up the machine and test it by blowing it to cause energy to go through the Voltage detector. Finally, we hold a contest about who can blow the strongest and fastest to let the Voltage detector show the highest score, and the winner can earn prizes. And this is the most interesting part for the presentation to middle school students.
After conducting visits, interviews, and research on wind power, we have consolidated our knowledge into posters and presentations, which are displayed on electronic walls across different floors of the school for promotional purposes. During lunchtime and after school, we also utilize the electronic walls as a platform to educate students and teachers of all grades about wind power. Through this approach, we aim to reach a wider audience and introduce wind power to more people.