Steam Engine - How Does It Work
HTML-код
- Опубликовано: 30 июн 2024
- Thanks for watching! Feel free to ask me questions in the comment section.
Patreon:
www.patreon.com/user?u=282505...
Facebook:
/ realengineering1
Instagram:
/ brianjamesmcmanus
Twitter:
/ fiosracht
Thanks to davidrobert2007 for allowing me to use his fantastic footage for this video. Full video available here: • Engine With And Withou...
A big thank you to Dr. Nathan Quinlan, my thermodynamics lecturer from NUI Galway, for helping me with the research for this video. / nathanmecheng
"Infinite Perspective" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
creativecommons.org/licenses/b...
![ian - Fit Check (Feat. VonOff1700) [Official Music Video]](http://i.ytimg.com/vi/sDGWDBg45Dw/mqdefault.jpg)
Hey it's me, future Brian. Past Brian, you see that little star button on the after effects layers called "continually rasterise". Hit it so your drawings don't pixelate when scaled up.
Time travel video confirmed? :O
@@yormumahoe6469 Nice username
@@Oussama-sabouh Nice profile pick
@@Oussama-sabouh Idk what's happening here
@@Oussama-sabouh nice nice
As always, brilliant, and to me your best yet. Came into it ignorant; left way more clued up. Looking forward to the centripetal vs centrifugal video.
Make a video
Here you go, centrifugal force doesn't exist.
You make the best videos on youtube
+GamingEchelon Saying centrifugal force doesn't exist is like saying inertia doesn't exist.
Newton's first law - A body at rest will remain at rest, a body in motion will remain in motion, unless acted upon by an external force.
If the circular motion of a centrifuge applies force to an object (centripetal force) the inertia will try to keep the object moving in the same direction, and the result will push the object away from the center of the spinning centrifuge (centrifugal force).
Newton's third law - Every action has an equal and opposite reaction - Centripetal - Centrifugal.
Centrifugal force is what keeps the tether ball flying around the poll at the end of the rope, it keeps you pinned to the wall of the gravitron at the local amusement park and it keeps satellites from falling out of orbit.
+Virgil Pheonix You're think of centripetal force when saying it goes away from the source. Check out Crash Course's videos on physics.
Modern history is about human kind trying to find different ways to boil water.
and kill each other.
Hmmm... A new type of internal combustion engine?
Can I put people in a giant metal shell with a massive turret powered by said engine in order to obliterate my enemies?
That's not modern history, that is the cause to write history :D To kill each other in better and more efficient ways
Metatron A quote from AlternateHistoryHub or KnowledgeHub.
"Throughout history, humans have the nice tendency to kill each other."
I swear we'll just be using antimatter to boil water if we ever get a significant source of it.
2:55 Turing a piston horizontally does not change how atmosphere if pressure affects it... Pressure acts in all directions equally... It only changes the part of the force intrigued by gravity
Still a great video though
Yeah I noticed that too
Sorry Master, gravity is not the big factor. The pressure horizontally or vertically is the same, so that is not why steam was used instead for the return stroke. The power in the earlier version of the engine is the difference between the atmospheric pressure and the reduced pressure of the air and condensed water. It will work no matter which way the piston is oriented, even upside-down.
The real reason is that the new configuration has a power stroke in each direction. The condenser is the little hole under the piston. Each side of the piston is alternately connected to the steam source and to the condenser. The piston doesn't rely on atmospheric pressure at all.
I was thinking the same
I have to add to your theory.....if the steam piston is laying on it's side there is a significantly higher wear caused on the bottom of the piston and the cylinder.....caused by gravity alone. Placing the piston/cylinder in an upright position takes that effect of gravity out of the picture. You are certainly correct on the forces but gravity has an effect by an increased side load on the piston/cylinder......wears less at the top, more on the bottom...bigger the piston/cylinder the more significant the wear.....weight issue
Hey everyone. Hope you liked the video. I'm planning to do a Q/A at some point, so if you have any questions please send me a tweet. My username is fiosracht.
Do a video on the Chinese maglev train, I'd love for you to explain how it work. Keep up the great work.
Love your videos, it great to see new and talented content creators adding to the storehouse of knowledge. I did however have an issue with something you said in your video. At 2:45 you said "we have turned the piston on its side, so air pressure can no longer force the cylinder back down." This is false. No matter what orientation the cylinder is in air pressure will always exert about 14 PSI on the open end of the cylinder. This mean that in a watt style steam engine air pressure will force the cylinder back "down" even if the cylinder is inverted, or in your example on its side. Air pressure does not care about orientation, and the work is done by virtue of the pressure differential, not gravity.
Great video!!
+ZzT1T4NzZ I think that would be amazing I'd like to see a video on the evolution of the railways
+83c PRODUCTIONS that would be brilliant. He could also talk about the future of trains such as the hyperloop project
Well, Steam engine also revolutionize gaming industry. lol
Arif Nur Rahman lol true.
that is the wrong steam engine
pieter pretorius r/woooosh
Zocc he right though.
Geez people can't take a joke
In your steam engine animation, the slide valve is positioned 180 degrees from the piston on the crankshaft. it should be positioned 90 degrees from the crank. Also, most steam engines use an eccentric to operate the valve, not a cam (or a crank, as shown in the animation).
I'm sorry if I sound like a negative nancy, but I really wanted to point this out.
@@sachideshmane5088 You NEEDED to point that out because the animation as it is, is lacking any real engineering insight. No need for feeling sorry. He doesn't understand atmospheric pressure as well so he doesn't do engineering any favour by butchering how it works.
@@DreadX10 Calm down
@@robertpaulson2052 When you have nothing to say, it is so much better to say nothing.
@@DreadX10 Then why do you keep commenting?
Its just so cool that one of your favorite channels makes a video about things your doing in school it just give me more motivation.
The wheel acts more like an inductor than a battery. Its the perfect analogy for an inductor if you ask me.
finally a new video!!!
quality - top notch
and thank you and keep the hard work up!
Thanks! Sorry about the delay. I just moved back to Ireland after three years living in Malaysia.
No worries mate... BTW, are you a mechanical engineer?
+Manas Sarpatwar My undergrad was in Biomedical Engineering and my masters was in Aeronautical. I had dreams of being Ironman clearly
+Real Engineering MY god! what a turn of events! just a suggestion, I think you should collaborate with either VSauce, veritasium, or PBS digital studios channels...
haha I would collaborate if they would have me. I'm a really small RUclipsr. They don't even know this channel exists.
I really hope I can make a video with Destin on Smarter Every Day about coronary stents.
Thank you. We are planning on making a steam powered boat with my family, and this helps a lot. Thank you again.
Made it yet?
love your work man, looking forward to the next one!
thx for the vid, i checked out a few sites, but they were way too complex. This vid was simple enough for mee to understand, yet complex enough to make sure i knew enough about it. thx
I'm building a steam engine as a "final exam" in my machining class at my technical college. To pass, it has to run for one minute on 200-300 psi. This gives me a better understanding of how it actually operates (I've only made one of the 23 pieces so far). Thanks for the video. :D
How did it go?
How'd it turn out?
the best thing is her unpredictability, one moment she can run soo smoothly her rhythmic noises are soothing then out of no where she can play up. slamming down with such force and you have to run over to the steam valve and shut her down while adjusting the pins and the weights on the piston till you find that sweet spot to return her to the point where she is happy. such temperament, such power and yet no matter how much you get frustrated by her, you love her all the same
hahaha that's awesome. Will definitely pay her a visit if I am in the area!
I swear, engineers have the ability to take the most mundane solution to make batshit insane things
I cannot support you in Patreon for various reasons but I can totaly give you my like, subscribe and follow on your social networks. Nice videos man, I can imagine how much work each video needs to be so good. Keepup the good work mate, you're doing great!
No worries. Totally understandable. You support plenty by watching!
Oreos o spiros
So weird; my engineering class was just talking about steam engines. After watching this video, I understand it so much better now. This channel is pretty awesome :)
you are in a pretty weird engineering class if you need this video to understand.
ThunfischXXx Ya it was like a super cursory intro class for 2 weeks, kinda for fun
Hello Brian, love your videos, and that’s why I make this comment. At 2:44 you say
“We have turned this piston’s cylinder on its side, so atmospheric pressure can no longer force the piston back down, so we need to use steam on the return stoke. This requires a control valve, to control when the stream enters and leaves each side of the cylinder”.
Atmospheric pressure can push against the piston in ANY direction IF you have an open cylinder. Did you mean to say that gravity can’t force the piston back? And you don’t have to use steam on the return stroke, if you have a flywheel (it does add to the power). A big shift in steam power evolution at time 2:44 I think was going from an atmospheric pressure power stroke, to a steam pressure power stroke.
Anyways; most of what you say is correct, and clear, and I appreciate that.
I now see that I’m not the first person to call your attention on this.
Ok, keep up the good work!
Yeah, I'm embarrassed about that, not sure how I didn't catch it during my iterations of my scripts. In my head I was thinking gravity. Hope that mistake doesn't take away too much from the video.
I just realised you have pretty interesting content on your channel! I really want to make a video about sterling engines at some point.
Ah; you do understand how it works but made a mistake in the script. I do that all the time! It’s so easy to make a mistake and not see it, even after triple checking.
Well thank you :-) I want to make a “how a stirling engine works” movie as well. Maybe we can work together on this one? I could for example fact check your script. Many people don’t understand the stirling engine, think for example that the displacer is a piston.. and such. If feel the stirling engine has a lot of unused potential. My address can be found on my laesieworks website.
Absolutely yeah, always nice to work with someone on videos. I actually built a 3D model in Autocad, based on some designs I found online. I wanted to try and build it with my 3D printer, but never got around to finishing it. The tolerances were difficult to get right. I'll send you an email now
Every good effort must be praised
Great video with a clear explanation!
Your content never ceases to amaze me.
2:45 - Simply putting the piston on its side DOESN'T remove the effect of atmospheric pressure.
It's a good video otherwise though. I knew very little on how steam engines truly worked and this was quite informative.
Great effort and a wonderful understanding
Where it all began. Still one of my favorite of your videos
Two mistakes - the steam coming into the cylinder is at atmospheric pressure, it doesn't push the piston up. Rather it is drawn up by the beam being unbalanced and heavier on the pump side than the engine side. It's the relative vacuum formed by condensing the steam and atmospheric pressure acting on the opposite side of the piston that does the work of moving the piston. That's why it's called Newcomen's Atmospheric Engine. Second one is that atmospheric pressure works in all directions - the cylinder for the reciprocating engine could be in any orientation, but you wouldn't be able to drain the condensed water, so it has to be upright.
thank you for this educational video helped a lot with one of my school presentations
Incredible video the control valve for the return stroke how you animated it helped me understand. Thank you. Subed
Cool to see how may different steam engines are out there. Wonder how many times they fail before they got one to work.
I feel like this isnt talked about enough, but the background music choice is always great.
Still waiting on that centripetal and centrifugal video 6 years later...
your channel is awesome, subbed
Clearly understood and brilliant.
This video was exactly what I was looking for. Thank you very much for taking the time to produce this.
Awesome vid
What I was looking for
Marvelous platform to learn what actual Engineering is..
2:50 The effect of atmospheric pressure is unrelated to the piston's orientation. Air also pushes sideways. This is Pascal's principle.
The claim that the 1712 Newcomen engine's piston was raised by pressurized steam is completely wrong. The piston was raised by the weight of the pump rod and pump plunger. As it rose, it DREW steam (at essentially atmospheric pressure) from the boiler into the piston chamber. Then cold water was sprayed into the piston, condensing the steam and creating a vacuum. The differential pressure between the atmosphere outside the piston and the vacuum inside the piston forced down the piston, causing the pump to operate. At the bottom of the stroke, the pump rod had been raised back up and it's weight was ready to pull the piston back up. The first pressurized steam engines were not developed until about 1799 by Richard Trevithick, with others also being given credit for working on the idea at about that same time. This was almost a century after Newcomen invented his engine.
Andrew Russell thanks, I thought that was the case.
Question: so where does the steam go after passing through the cylinder?
If you look at the animation you'll notice a chamber with a hole in the middle. The system is designed to release steam from the chamber you're pushing against, both to release the steam and to decrease pressure making the push from the opposite chamber easier.
@@piroman85 this shit is crazy
Out into the air
Have you ever seen a steam locomotive? Notice the funnel? That’s where.
I would love an expanded and updated version of this video. Or even one dedicated to steam and all it's many uses. You could make it Nebula only...
Many people seem to forget that steam power is still one of the most used ways to generate power. It just uses different types of heat sources and the designs changed drastically. Even nuclear power is just nuclear fission heating up water to power turbines.
ITYM... Nuclear Fission increases the temperature of water changing it from a liquid to a gas (water Vapor/Steam)
The steam is first used to SPINS the turbines that SPINS A HUGE MAGNET within a huge coil of Conductive Metal Wire (Cu). Causing electrons to flow within the Copper wire. (Alternating Current). Typically these facilities operate ultra-efficiently...yada-yada-yada, blah-blah-blah....(is similar to what you meant to say, I think? right? Yeah, of course!
Always great videos. I would have likes a bit more details about how the steam circulates, and what are the steam temperature values in the advanced engines, but this introduction is already very nice. Just a minor comment, wouldn't it be better to imagine flywheel as a mechanical capacitor instead of a battery? Capacitors are exactly for this when converting AC to DC current.
great video m8!
you did get the control valve timing wrong in the animation. you put it at roughly 180 degrees from the piston crank but its supposed to be 90 degrees.
Great explanation and graphics Thanks
Great video! Thanks for the education.
This channel is a gem for engineers :)
great details thanks Brian
Holy shit why did I sleep on this video it's exactly what I needed
thank you so much for this. Really helped
Good stuff and keep it coming if you can.
I should sleep but I don't want to stop learning more and more... wish I could learn while sleeping
Please make more videos describing industrial revolution technology like this.
It's a nice video. But I'm sure someone had mentioned before. The gate position that changes where steam enters and exits should have the linkage rotated 90° counterclockwise
How do you do your animations? Great video and explanation!
Awesome video. Seems like the cam lift and crankshaft stroke would have to have some kind of ratio. Do you know what that is ?
If the crankshaft stroke was too long or too short it seems like the control valve wouldn't be open at the right time.
Love your vids. I hope you and Destin collaborate.
Great! Love how you came in from a very big-picture perspective and grounded it.
How do you make these amazing animations? What package do you use?
Amazing channel!! ....Thank you
This really is the first video on youtube which explains steam engines really well, but I've a question, what does the centrifugal governor do? You could of explained it in the video.
It controls the fuel supply to the engine to keep the speed stable if the load changes. He is gone explain this in his next video.
The most interesting part in this whole video is actually the flywheel. Never knew stuff like that. Cool
Wow watching an older video of yours really shows how much your oratory skills increased through the years.
Great explanation. Please how did you do this animation? Or which software or tool did you use?
SG: I think he confuses gravity with atmospheric pressure.
FM: Isn't atmospheric pressure caused by gravity?
SG: He says that the piston works against Atmospheric Pressure. In both cases (vertical and horizontal) that is not the case as the inside of the piston does not have a pressure less than Atmospheric Pressure. The water cooling in the first case causes condensing of the vapour reducing the 'gas content' and thus a sort of vacuum is created causing it to fall down faster than normal condensing would do.
Also he says that in the case of the horizontal cylinder Atmospheric Pressure does not act anymore because it is tilted. It is the weight of the piston (head) that is removed out of the equation in this case (if we neglect friction).
Great video. Without meaning to be to critical there are a few small thing I would point out. In the Newcomen engine the steam does no work and is at a very low pressure, about 15psi I think. It was actually the weight of the pump rods that pulled the piston up as much as it was the steam. Hence it makes sense to have a vertical cylinder.
The main thing that changed and really sparked of the industrial revolution was James Watt's invention of using high pressure or strong steam as he called it. This was as a result of the advances in engineering technologies, both making it possible to build boilers up to a higher pressure and more complex machinery to tighter tolerances. Watt came up with some very important inventions which made his engine much more efficient such as his parallel motion, separate condenser, crank and flywheel. The difference with the separate condenser as opposed to the atmospheric engine is that it's only reducing the pressure the steam is working against instead of providing the power.
Nice video Sir
Great videos, I didn't hesitate to subscribe.
awesome video thanks !
My pleasure. Thanks for watching!
Great video! Accessible but still full of technical goodness. Only criticism is that you introduced the PV diagram really quickly and didn't explain how it worked. The discussion of inefficiencies and history of overcoming them was really interesting.
who in the world would dislike these great videos?
extremely well explained
Realy enlightening!
dude i love your videos!
Very cool video! One question: How / With what program have you created the animations?
Hi Brian,
great video as always, can you tell me the name of the Background music (it's stuck in my head)? - Thanks so much.
What you said about atmospheric pressure is wrong. You are confusing gravity with atmospheric pressure.
I dont think the gravity plays that big a part. If that were the only force pulling the piston down, i dont think the pump would get pulled up, as iv’e heard the pump part is heavier. So there’s some vacum in there pulling the piston down/atmosphere pressuring the piston down.
Exactly.
I wd think that vapor pressure does work on the up stroke and gravity on the down stroke.
..but I still liked the video.
I would have made the valve larger with a arrow, I think thats the STAR, Genius of the steam engine.
gravity is literally an illusion. Atmospheric pressure effects what you call "gravity". Every and any equation with gravity, has every and anything to do with "pressure".
I'm planning a steampunk costume for Halloween, and i want my gadgets to be (theoretically) functional, so hopefully this'll help
great video. i had no idea what a flywheel was for
Now you know!
Love this channel
Good and helpful Video
Make a video of James Watts new and improved steam engine and it’s impact on the industrial revolution
That flywheel demo with the solenoid engine was brilliant. Where did you locate that?
in my toilet
Great video
I was thinking about how the steam engine works! When Im on my way to work! And when I parked! RUclips emailed me ur video because I subscribe email notifications from u! Hahahha what a coincidence! xD i was like! They burn goal to boil the water so the steam comes what! But how the pistons go up and down!? It takes time to cool down! And now I know the answer! Thank u!
cool video, you definitely earned a sub
I believe there's a small mistake. You said that by putting the cilinder horizontally atmospheric pressure could no longer act on the piston, but it is renowned that pressure acts in every direction, like in water
Watching this while high hits different
I can't believe the amount of people that think centrifugal force is fake.
Are these the same people who believe gravity is fake?
Virgil Pheonix likely
Whaat? Who thinks it's fake? I've seen plenty of nonsense theories, but I missed this...
Cool Name just when he popped up a bunch of comments from people who say it doesn't exist
Centrifugal force is sometimes called "the fictitious force" or "pseudo force". Some people seem to think this means that it doesn't exist.
Very nice video 👍
i searched up what a steam engine was and found out about how it was a heat engine which does mechanical work by using steam as a working fluid, it basically uses the force caused by steam pressure to push a piston back and forth inside a cylinder and this pushing force can be transformed by connecting a rod and a crank, into a rotational force for work, it was pretty interesting
Could we see something about the evolution of the railways from the 1800sto the 2000s it would be quite interesting
cool and really useful video
can you please tell me what formula have you used for creating the return crank (crank slider with an offset)?
Great video. Subbed.
VERY good video sir
Wow finally ! I always tald myself the centrifugal force doesn't exist, despite never being told so, and you're confirming my thoughts.
I cannot understand a word. You’ve come a long way.
Hi you do great stuff , if i can make a remark about the speed of your speech i fide it way fast and robotic ,
thanks and keep the mojo
keeping the video short but not omitting necessary details is perfect..
Even if the engine is sideways, atmospheric pressure could still push it. The reason for double action is that the steam (which is at a significantly higher pressure than atmospheric) is acting on every stroke. This difference is similar to the difference in power per size from a 4 stroke engine to a 2 stroke engine. Steam locomotive engines had at least two cylinders, meaning four power strokes per revolution. This is partly for power, but it is necessary for the engine to be self starting. This means that the engine is always in a power stroke.
I have been reading lately about CHP plants, and I have been wondering if it would be possible to convert the heat produced by a CHP unit into electricity using some kind of steam device. Would this be a good or bad use of the heat produced by a CHP unit?