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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
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.
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.
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.
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.
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!
Simcity 2000 first taught me the word powerplant. In my 6 year old mind, I was thinking they grow special plants that give off electrified power and powerplant is just what they called the building the plants grow in. I then had to learn about how coal gets burned, and that's what makes the power and how it pollutes the air.
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?
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.
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 :)
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?
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.
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.
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 .
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…
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