Projec 04 Video&Wind

Our final project for the semester is to study the global crisis and make a film as a reflection.

We need to choose a theme from this site:

https://foresight.arup.com/our-tools/drivers-of-change/

All the topics listed on the site are about global crises such as water, urbanization, climate change, etc.The topic I’ve chosen is the energy crisis.
The crisis is focused on the development of new energy technologies, such as wind power and hydrogen fuel.
I choose this topic because I believe that the use of new energy can promote the harmony between man and nature.

How do we achieve a low-carbon future?

What does our renewable energy future look like as the impact of fossil fuels on the environment is widely challenged?
Driving Energy Change reveals the key trends and issues shaping the future of energy.
From urbanization-driven consumption growth to 1.3 billion people without electricity in 2015, these drivers show that we face enormous challenges and opportunities.

Wind power refers to converting the kinetic energy of wind into electricity.Wind energy is a kind of clean and pollution-free renewable energy, which has been used by people for a long time. It mainly uses windmills to pump water and grind flour, etc. People are interested in how to use wind to generate electricity.The use of wind power generation is very environmentally friendly, and the amount of wind energy is huge, so it is increasingly valued by the world.

Wind is one of the most harmless sources of energy.And it is inexhaustible and inexhaustible.For the coastal islands, grassland pastoral areas, mountain areas and plateau areas with water shortage, fuel shortage and inconvenient transportation, the use of wind power according to local conditions is very suitable and promising.
Offshore wind power is an important field for the development of renewable energy, an important force to promote the technological progress and industrial upgrading of wind power, and an important measure to promote the adjustment of energy structure.

Wind is a potential new energy source. In the early 18th century, a violent gale swept across England and France. It destroyed 400 windmills, 800 houses, 100 churches, more than 400 sailing boats, injured thousands of people and uprooted 250,000 trees.In a matter of seconds the wind produced ten million horse-power (7.5 million kilowatts;
One horsepower equals 0.75 kilowatts) of power!By one estimate, the earth has about 10 gigawatts of wind power available to generate electricity, nearly 10 times the world’s hydroelectric capacity.The world gets only a third as much energy from burning coal each year as wind power does in a single year.Therefore, the world attaches great importance to the use of wind power generation, the development of new energy.Attempts to harness wind power began in the early 1900s.
In the thirties, Denmark, Sweden, the Soviet Union and the United States successfully developed a number of small wind power plants using the rotor technology of the aviation industry.These small wind turbines, widely used on windy islands and in remote villages, can generate electricity at a much lower cost than a small internal combustion engine.However, the power generation was low, mostly under 5 kw.
It is understood that developed countries have produced wind turbines of 15,40,45,100,225 kilowatts.
In January 1978, the United States built a 200-kilowatt wind turbine in Clayton, New Mexico, with a blade diameter of 38 meters, generating enough electricity to power 60 households.In the early summer of 1978, on the west coast of Jutland, Denmark, a 2,000-kilowatt wind farm was installed. The 57-meter-high windmill fed 75 percent of its output into the grid and fed the rest to a nearby school.In the first half of 1979, in the Blue Ridge Mountains of North Carolina, the United States built the world’s largest power-generating windmill.

The windmill is ten stories high, with steel blades 60 meters in diameter;The blades are mounted on a tower, so the windmill can turn freely and get power from either direction;
When the wind speed is above 38 kilometers per hour, the power generation capacity can reach 2,000 kilowatts.Because the average wind speed in this hilly region is only 29 kilometers per hour, the windmill cannot move fully.It is estimated that even if it runs only half the year, it could meet 1 to 2 percent of the electricity needs of seven North Carolina counties.

Many developing and developed countries have built a large number of wind farms in recent years

Schematic diagram of working parts of modern wind turbine

advantages

1. clean, good environmental benefits;
2. renewable, never dried up;
3.Short construction cycle;
4.Flexible installation scale.

disadvantages

1.Noise and visual pollution;
2.Occupying large areas of land;
3. unstable, uncontrollable;
4.Costs are still high.
5.Affecting birds.

Short conception

I think wind power is boring in comparison, and only suitable for scientific topics of interest to minority groups.I think wind close to the nature of life can strike a chord with most people, so I collected a lot of natural information related to wind.I collected some wind characteristics.For example, wind brings the four seasons and the rainy season, brings warm currents and cold currents, and also enables many animals and plants to reproduce and thrive.