How Coal Fired Thermal Power Stations Work
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- เผยแพร่เมื่อ 13 พ.ย. 2019
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Learn how coal fired thermal power stations work! You will learn about all of a coal power plant’s main systems and components, and how they work together so we can generate electricity!
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▶️Introduction
A coal fired power station burns coal in order to generate heat which is used to generate steam. The steam is then used to rotate a steam turbine runner which is connected to a generator. The generator generates alternating current which is delivered to a transformer and finally into the grid.
The study of how electrical energy is generated is termed Power Engineering; the related industry is the Power Generation industry.
Coal fired power plants rely upon many components in order to function, the main components are:
Water Tube Boiler
Steam Turbine
Generator
Transformer - you can see our video tutorial here:
• Transformer Parts and ...
Cooling Tower (larger plants use natural draft cooling towers, you can see our video tutorial for this here:
• How Natural Draft Cool...
Coal Pulveriser - you can see our video tutorial here:
• How Vertical Grinding ...
The water tube boiler furnace converts the coal’s chemical energy to heat (thermal energy). The water tube boiler tubes convert water to steam. A fire tube boiler is used as a standby boiler for most thermal power plants, but it does not have the steam generation capacity of a water tube boiler.
Below is a link to our fire tube boiler tutorial:
• How Fire Tube Boilers ...
The steam turbine converts the energy from the steam (enthalpy) into mechanical motion (steam flowing through the turbine causes it to rotate).
The steam turbine is connected on a shaft to a generator via a gearbox. As the steam turbine runner rotates, so too does the generator rotor.
The generator converts the mechanical motion from the turbine into electrical energy, which is then dispatched to a transformer and finally the electrical grid.
Cooling towers cool the steam discharged form the low pressure turbine(s) and cause it to condense back into condensate (liquid). The condensate is then pumped back to the boiler, usually via a deaerator and other pre-heaters.
Cooling Towers (links to our video tutorials):
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In addition to the above main components, a typical coal fired power station will have fans and pumps etc. Electrostatic precipitators (ESPs) are used as part of the flue gas (exhaust gas) cleaning system, as are flue gas desulpherisers (flue gas desulphurisation process, or 'FGD').
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i am watching this video at 5 am because i cant sleep and even though i have nothing to do with this information as i dont work or intend to work in this field i found the video so interesting i watched it all. Your video on the natural draft cooling towers was also really well out together and high effort, keep it up :D
Same for me today
Well its only 4 am for me so i cant relate to this comment...
6:50 Just a clarification here for others, since I'm sure saVRee is aware of this and just worded it oddly: Dry steam is still made up entirely of water molecules, it just has no _liquid_ particles in suspension in it. In other words, all of the H2O is in a gaseous state and none of it is in a vaporized liquid state. Put even more simply, wet steam has liquid water droplets in it, dry steam does not. It's a bit confusing, since in everyday use water refers only to the liquid state, but in scientific terms all three states of matter consist of water molecules.
Veeery useful. I got totally confused!
hearing that in the video surprised me a bit lol
I have worked five years at a
coal fired 450 MW power plant. I have never had the theory of operation explained better than this. Phenomenal video, thank you for the information.
Thanks Josh, appreciated.
I am very happy with your channel because I work at a steam power plant
Thank you for all of the videos and all of your hard work. I hope your channel is around for a long time. I've been looking for videos like these for literally YEARS.
This was excellent. Very clear explanation.
It would be cool to see a video in the future on Thrust Bearings and Journal Bearings of various types, and how they typically work with the Hydraulic Oil and Turning Gear systems.
I'm no engineer but I LOVE your videos! You're an excellent teacher/ professor.
Another very useful, detailed and yet easy to understand explanation...thanks...👍
Fantastic! Just what I needed.
Great video,I am only halfway through but this video helped me learn more about coal powered plants than my course lessons did
Thanks a lot this video is helpful, it's important that you show pictures of the system in reality so We can imagine how it looks like.
I swear you're talking to us like this is a tutorial on how to make a coal power plant.
DIY.
Your videos are of really high appreciation and information.please make a video on " how refinery works"
Thanks for your Video! It's very useful for me. If you can, please make some videos about Combined Cycle Power Plant and its state-of-the-art technology equipments. Thanks a lot!
كالعادة ، أنت مبدع ، إستمر .
As usual, you're creative, keep going .
1:35 ! wow...I really want to hear more about the process after this clip !
Thanks a lot buddy, appreciated
Excellent. Thank you.
Thank you
15:36 The power plant choosen als an example is exactly the one I work at. Such a concidence!
It is a small world!
Superb 🙌 keep going ❤️✨
Thanks, It helped
Watching your video at 4 am .
Great video!
Glad you enjoyed it
Great 👍
Dry steam does have water molecules in it, otherwise it'd just be a vacuum then :)
What it should say, as the first time, is no water droplets, that is no condensed water molecules. But the gas is still made of water molecules :)
Hi saVRee, Thanks for sharing this knowledge. I was wondering what is the purpose of superheating the steam before sending it to the HP turbine? Do you typically expect condensation occuring as the steam pressure drops?
This is the best ever!
I can’t even imagine it 👌 😅
Wow this video help me full
you are amazing🤩
Can you explain the boiler feed water pump section. I was told that the pump just delivers the water into the system, obviously at high pressures but no where near as high as the mainstream pressure. That pressure is generated from from firing and steam generation which for me means that the the latent heat transfer would not be at a constant pressure as explained in the ranking cycle. Kindly clarify. Thanks.
thank you...
You're most welcome
Bow down he is a GOD
It is an "electrical power generation station", but shortened as "power station". You are right, the energy was not generated, just changed its form and majority of it lost in inefficiencies.
Hi mate wheres the rest of this series ? Ive seen the bit on the tube boiler but what about the condenser, generator etc etc
Is there any cutting edge tech being developed to improve the heat rate of the plants? Or is the main focus just optimizing current systems?
so the paraboloid tower doesn't need to be concrete? as long as you choose a material that can hold its shape in the wind and resist humidity. Do you know of any that aren't concrete?
The only thing I am listening to is your accent. Your voice is so good
What temperatures is the water heated to and the temperatures of the different stage steams?
what softwares are used to create those animations?
Hello sir thank you for this video
I wanted to know why is there a coal yard when there is a silo
Thanks
Can you do a video on electric cars? I find it paradoxical to know that these cars are charged from the same electricity that is generated by burning coal. Yes, there is no vehicle exhaust but it'd be good to know carbon emissions of using fossil fuel vehicles vs. carbon emissions of coal required to charge equal number of vehicles.
Your intuition is partially correct. However, electrical power stations can generate electricity _much_ more efficiently than the internal combustion engine in our cars, so while we _do_ lose efficiencies in going from coal -> electricity -> battery -> move car, because our combustion engines in our cars aren't very efficient the battery-powered car can still win out. The power plant is 33-48% efficient, while the combustion engine is 12-35% efficient, while the electrical car is ~59-77% efficient. Combining the electricity and electric car efficiencies, we get 19-37% efficiency, compared to the gas car's 12-35%.
Also, electricity can be transported long distances more efficiently (thanks to transformers and a massive power grid) than gas, which is delivered in trucks to gas stations.
Furthermore, we can produce electricity from renewable sources like hydro, solar, and wind, practically disregarding the efficiency comparison regarding the electricity production where the grid has a high proportion of non-fossil fuel power sources. However, there are efficiency losses associated with the manufacture and maintenance of these devices as well. Same with batteries, which also take energy to produce.
I agree. In Ontario Canada we have 58% carbon free electricity from a nuclear power plant. I think this is the future of reliable carbon free power generation.
@@discipleoferis549 An EV is more like 80-92% efficient once you factor in grid transmission losses, and AC-DC conversion when charging the vehicle. Overall, from well-to-wheel, a battery EV is around 70% on a coal powered grid, and 90% on a nuclear/hydro grid. Still MUCH better than a gas car, plus of course the benefit of less pollution in local areas.
New studies show an EV is at emission-parity with a gas car after 30,000 miles (50,000km) and after this, the EV is cleaner.
Question.... What is the temperature of the steam/water entering the cooler tower and what temperature does it leave the tower?
Its depand on MW
I work in coal power station. Greetings
Is there a book you guys can suggest me about coal fired power stations?
Very good.....but you don't say what's going on inside the generator!! you just say the generator generates AC voltage etc.....but how?
G. P. Yavatmal zindabad.
You could probably supply the free heat to the town instead of building the cooling tower that releases the heat of burned coal to the heavens
Can sewage waste waste be used in place of water ?
For me very missing the heat diagramms for water (PT) stage by stage.
Please make vidio for geothermal power plat, its more clean than this obe
No smoking in the coal area guys!
Why the steam is cooled in the condencer befor it send back to the boiler ?
This make it cool , so the energy needed to heat it up is more than if it is hot .
Just a theory but it may cause a positive feedback loop and cause an explosion
@@benhutchinson9054
I knew the answer later, which is
" *Ranklin Circle* "
I watching this video in Near thea nedct because i doing in ndct duty
Are you an engineering student?
Was wondering how this all works to understand the immense gravity of stupidity that managers at Tampa Electric Co. suffered when they sent those people to their deaths…
electrical substation
Simcity 2000 anyone?
No catalytic converter?
Xin bản Vietsub
Ahh but one day simple wind turbines and solar panels will replace all these- not!
We need to switch to microwave power plants.
wOw
I thought electric came from the wall!🤨
Silly TH-camrs having millions of Subscribers an Views but these great and gem like youtubers don't.
*Shame*
We will get there! Just takes time :)
So much drama to spin the fucking turbine 😅
extremely wasteful use of coal, and still over 50% of harmful waste gets into the air.
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