Archive for the tag: power

The Future of Energy | Episode 2: Offshore Wind Power

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The Future of Energy – Episode 2: Offshore Wind Power

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Swimming by Sleepy Fish – Copyright Chillhop Music – https://chll.to/d983758d

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The global annual potential of onshore and offshore wind power is around 840,000 TWh, that’s almost 40 times that world’s annual power consumption!

The Global Wind Power capacity has more than doubled since 2012 from around 280 GW to over 650 GW today.

650 GW power capacity generates enough electricity to power the US and India combined.

Along with the growth in capacity, the wind turbines themselves have grown over the years.

The diameter of commercial turbine rotors was around 17m in the 1980s and generated around .07 MW.

Today, the average rotor is over 116m and generates over 2.4 MW.

The giant turbines used today are made possible by the advancement of material science, allowing the giant blades and shafts to withstand a tremendous amount of stress.

These larger turbines have led to a substantial drop in cost over the past 40 years.

The cost of wind power was 38 cents per kWh in 1980: today, it’s less than two cents!

Alright, so how do these incredible devices work?

Wind turbine are like plane propellers but in reverse.

Instead of an engine powering propellers to generate a wind force, the wind blows through the rotors and powers the engine.

This boils down to the Bernoulli Principal.

The shape of the blade causes air to take a longer path around one side compared to the other.

And this creates a difference in air pressure causing the blade to pull toward the low-pressure side, which spins the rotor.

Inside the turbine housing lies coils of wire that spin inside a magnetic field generating an electric current.

The downside to wind power is that only certain parts of the world have consistent wind at the ideal speed, which is between 21 and 26 km/h.

This map highlights the area that contains ideal wind speeds.

The areas in yellow, orange, and red are great places of wind turbines.

However, the map does not cover the shorelines, where the winds are much more constant than on land.

Offshore wind power is the fastest-growing sector in wind power lead by the UK and Germany.

The UK has three of the largest offshore wind farms in the world, the largest at the moment being the Hornsea Farm.

Hornsea has a massive 1.2GW capacity and is located 120 kilometers off England’s Yorkshire coast and will produce enough energy to power 1 million homes.

The farm has 174 turbines, each standing 100 meters tall.

Each Turbine can power the average home for an entire day with just a single rotation.

And if you think that’s impressive, General Electric has developed a wind turbine that makes the ones on the Hornsea farm look like children.

Enter the Haliade-X wind turbine.

The Haliade-X is gargantuan, standing 260 meters tall, equipped with 107 long blades.

With a 12MW capacity, a single Haliade turbine can power 16,000 homes.

GE recently constructed a prototype Haliade in the Netherlands; this is a time-lapse of the construction.

GE plans to commercialize Haliade by 2021 and will supply up to 300 of the massive turbines to the Dogger Bank wind farm.

Dogger Bank Wind Farm will be the largest offshore wind farm in the world with a massive 3.6 GW capacity and will power 4.5 million homes in the UK.

Constructing offshore turbines require specialized vessels called offshore Jack-up Installation Vessels.

And the installation of Haliade-X turbines will require the largest jack-up vessel in the world, the Voltaire, being constructed by Jan De Nul Group.

The Voltaire is a behemoth at almost 170 meters long.

Voltaire’s lifting capacity of 3,000 tons is twice the capacity as Jan De Nul’s next largest vessel.

Anyway, the UK is gearing up to be carbon neutral by 2050, and with the help of these incredible offshore wind farms, it is well on its way.

Scotland generated twice the power it needs from wind power in the first half of 2019.

And offshore wind power is going to expand well beyond the UK in the coming years.

Germany is not too far behind the UK.

The country has almost 1500 offshore wind turbines with a capacity of 7.5 GW and is expecting to grow to 15 GW by 2030.

The Global Wind Energy Council projects the global offshore wind market to grow from 20 GW today to 190 GW by 2030.

And the total investment in offshore farms could reach trillion by 2040.

So, wind offers a vast amount of renewable energy that is readily available, no mining, drilling, or fusing of atomic nuclei required.

Advantages of hydro power plant|Disadvantages of hydro power plant|Merits & Demerits of Hydro|GTU

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Advantages of hydro power plant|Disadvantages of hydro power plant|Merits & Demerits of Hydro|GTU

Explained beautifully with suitable figures and examples.

#water turbine plant
#hydraulic turbine plant
#types of water turbine plant
#types of hydrolic turbine plant
#classification of water turbine plant
#hydraulic Machine
#hydraulic machines
#hydro plant
#hydro electric plant
#types of hydro power plant
#types of hydro electric plant
#types of hydro electric power plant
#advantages of hydro power plant
#merits of hydro power plant
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What Size Wind Turbine to Power One Household? (viewer question)

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This is a question from viewer Doktaah Who: “How big would a wind turbine need to be to do just a single household?”

Great question! And one I thought I could answer in less than 60 seconds.
I’m going to be doing short answers like this every now and then, to take advantage of the new YouTube #shorts so leave your questions for me in the comments!
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Green Careers: Clean Energy – Wind Power (clip)

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From the Great Plains to the ocean shore and out at sea, the race is on to make the United States the worlds number one producer of wind power. We explore a new wind ranch to see the full range of new jobs from entry-level wind turbine technician to crane operator, wind power computer analyst and up to operations manager. We also visit a leading university taking part in the California Wind Energy Initiative where young wind power researchers are beginning their new careers designing better windmills and the wind energy systems of the future.

Jobs profiled in this program include:
Wind Turbine Technician, Crane Operator, Operations Manager, Computer Analyst, Wind Power Researcher, Aerodynamicist

Grade Levels: 7 to Adult

23 minutes, color

Direct link to purchase the DVD:

http://phoenixlearninggroup.com/product/green-careers-clean-energy-wind-power/
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How Wind Energy Could Power Earth … 18 Times Over | Dan Jørgensen | TED Countdown

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Over the last two decades, the wind power industry has grown at a dizzying pace. (Fun fact: a single rotation from one of the world’s most powerful wind turbines can generate enough electricity to charge more than 1,400 cell phones.) Building off this exponential growth, Denmark’s climate minister Dan Jørgensen lays out his plan to end the country’s oil industry by 2050 and transition to a fossil-free future powered by wind energy.

Countdown is TED’s global initiative to accelerate solutions to the climate crisis. The goal: to build a better future by cutting greenhouse gas emissions in half by 2030, in the race to a zero-carbon world. Get involved at https://countdown.ted.com/sign-up

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Building A Dam for Hydroelectric Power – Part 1 – Off Grid Cabin – EP #22

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#offgridcabin
#hydroelectricpower

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⭐️ About this Episode:
Finally, its time to start working on creating Hydroelectric POWER for the Off Grid Cabin. The 1st step is building a Dam to capture the water so that we can force it to the water wheel that we will be creating in upcoming episodes. Will this work? I SURE HOPE SO!!! Everything we have worked for over the past months all hinges on this idea that our cabin will be truly off grid and powered by WATER!! At best its a theory that we can create enough power to run the cabin but only time will tell. So stay tuned to see how this project comes together!

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How Pumped Storage Power Plants Work (Hydropower)

This video explains how pumped storage hydroelectric power stations work, what their main components are and their operating characteristics.

Like this video? Then check out our other videos!

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⚙️How Deaerators Work! – https://youtu.be/M_jOsTWVIH8
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⚙️How Watertube Boilers Work! – https://youtu.be/fUWRyhsutL8
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▶️Introduction

This type of power plant converts potential energy to electrical energy, or, electrical energy to potential energy. They achieve this by allowing water to flow from a high elevation to a lower elevation, or, by pumping water from a low elevation to a higher elevation. When water flows to a lower elevation, the power plant generates electricity. When water is pumped to a higher elevation, the power plant creates a store of potential energy. Pumped storage plants use Francis turbines because they can act as both a hydraulic pump and hydraulic turbine.

Pumped storage power plants are used to balance the frequency, voltage and power demands within the electrical grid. Pump storage plants are often utilised to add additional megawatt capacity to the grid during period of high power demand, for this reason, pumped storage plants are referred to as ‘peaking’ plants.

Because pumped storage plants can provide electrical grid operators with power ‘on-demand’, they have a high level of dispatchability (the ability to provide power to the grid as needed).

Components
Irrespective geographical location, all pumped storage plants require an upper and lower reservoir. The difference in elevation between the upper and lower reservoirs is referred to as the ‘head’ (head of pressure) and it must be significant in order for the plant to operate efficiently.

A penstock connects the upper reservoir to a Francis turbine located in the power house. A draft tube and tail race connects the Francis turbine to the lower reservoir.

Operation – Generating Power (Electricity)
Water flows from the upper reservoir, through the penstock, and to the Francis turbine. As the water passes over the Francis runner blades, a pressure differential is created that causes torque (rotary force) to be applied to the runner. The runner begins to rotate.
The turbine runner is connected on a common shaft to an electrical generator. As the runner rotates, so too does the generator rotor. As the rotor rotates through the electromagnetic field within the generator, it induces current in the stator windings and electrical current begins to flow. The electrical current is usually then dispatched to end consumers via a switchyard and electrical transformer.

Water discharged from the turbine runner enters into a draft tube where some of the kinetic energy is recovered and converted to potential energy; the water then enters the tail race and is discharged to the lower reservoir.

In this example, the potential energy of water was converted by the turbine runner into mechanical energy. The mechanical energy was transferred on a common shaft to a generator, which converted the mechanical energy to electrical energy. The entire process can be continuous until the upper reservoir is emptied.

Operation – Storing Potential Energy
Water is pumped from the lower reservoir to the upper reservoir by the Francis turbine runner. The flow path is the same as when generating electricity, except the flow direction is reversed.

Pumped Storage Economics
Pumped storage plants rely upon the varying price of electricity to make a profit. Many thermal power plants (coal fired, gas fired etc.) cannot increase or reduce their MW output quickly because this would place large thermal stresses on the power plant components (water tube boiler, piping etc.). For this reason, thermal power plants produce almost as much power at night, as they do during the day.

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Hydroelectric Power Plant working animation

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This video will explain construction, working, advantages, disadvantages and site selection of Hydroelectric Power Plant.
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Wind Power Physics

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Basic Physics of Wind Turbines. Good Turbines, Bad Turbines, How to tell what is a good turbine or bad turbine usually comes down to basic physics.
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Rain Gutter POWER #1 – How to Harvest Free Energy From Your Roof with a Hydro Electric Generator!

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A lot of people wonder if there’s any power in the rain falling on our roofs. This video series starts with the theory of how much power is available then attempts to achieve it in practice. It was a lot of fun to BUILD, hopefully you enjoy it and learn something in the process.

For those in the comments that insist I didn’t compensate for the angle of the roof in the rainfall calculation, did I not say “once I calculate the horizontal distance…”?

Please consider helping fund the channel by becoming part of my “Quint-essential” support on Patreon:

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Thanks for watching…

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Harvesting hydro power from rain gutters! It sounds impossible but it works. This is part 1 of a video series on the theory and implementation of capturing hydro-electric power from the roof. For part 2 click here:

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This video gives an overview of a 500 W hydro power system in central Virginia with a spinning, no-clog water intake.

Ultra-Small Water Power Generator

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Hydroelectric generation uses water power to drive turbines and is an important means for producing the electricity so essential for modern life. Facilities have been becoming smaller, with generators able to use diverse water power sources. We’ll look at an ultra-small generator developed in Gifu that’s highly portable and works even with shallow, slow moving water. Already tested powering street lights, it promises to allow people in the world’s remote regions to generate their own electricity for the first time.