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Boiler, How it works?
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- Опубліковано 18 сер 2024
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Some comments from someone who's been involved in engineering power plant boilers:
1. Doesn't discuss role of condenser and why it's important. When steam flows through turbines, some of it condenses and must be removed to avoid turbine blade damage. Also, after steam has passed through all boilers, it is cooled and condensed back into liquid, sometimes by using water from a river or lake, sometimes by using ambient air. This significantly improved thermodynamic efficiency of process. Typically, condensers operate under medium to high vacuum to maximize thermodynamic efficiency. Liquid condensate is then recycled back to feedwater pumps.
2. There is significant thermal expansion of boiler as it comes from a cold state to online. Large watertube boilers are suspended from near top; I've seen some boilers expand downward more than a foot (1/3 meter) due to thermal expansion.
3. Because of condenser, you can consider steam piping an "open" process, which means video's treatment of pressure during heating is essentially correct. But in order to reach maximum allowable temperature (limited by turbine metallurgy), water and steam pressure must be high, generally 1000+ PSIA. This pressure is mostly supplied by feedwater pumps.
4. Reason for multiple water passes through hot combustion gases is to primarily extract as much of the heat content from the combustion gases as possible. Economizer preheats boiler feed water using "cooler" combustion gases. Reheater uses hotter gases, superheater uses even hotter gases and main watertube chamber uses hottest gases. Side benefit to extracting maximum heat from combustion gases is thermal efficiency of overall process. The more heat you remove from combustion gases the better; plus it is a benefit to reject combustion gases to atmosphere as close to ambient temperature as achievable. I've even seen places use air to air heat exchanges to preheat incoming combustion air using combustion gases after water preheater.
5. Superheating is your friend. Dries out the steam, which is safer for turbine, plus provides significant thermodynamic efficiency.
6. Boilers generally use air, which has side effect of creating NOx molecules, which are environmental pollutants. This can be mitigated by extending flame length and reducing flame temperature. A newer way is to filter out most of the nitrogen and supply air with higher concentration of oxygen.
7. Everything is interrelated; changes in operating regime always impact something else.
Thanks for taking the time to explain
This is an excellent video. I have worked as an operator and now teach power plant operations, as a consultant. I am very impressed with the quality of your video. You might consider revising the narration regarding superheated steam. By definition, steam does not become superheated until all moisture is vaporized. Likewise, it remains superheated until it again reaches saturation. At saturation, there might be some moisture. Below saturation is liquid. Just a small point, but there can be no moisture in superheated steam.
I hope you have been able to continue you work. This is a truly fine animation for teaching.
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Hey Ray, what do you know about advanced ultra super critical technology?
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In our country there are many sugar mills n there small type power substation.
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I am eagerly waiting for your reply through my email address - mahabubul.ventures@gmail.com
Excellent video. Pressure also increases because against a saturation pressure, there is a saturation temperature.
thanks , taking some notes
You put things very nicely it is worth watching your 5 minute video rather than read a book for hour🙌🙌🙌 hats off!!!
Most trusted channel for engineering concept explanation ❤️
This is an interesting video on the basics of how a generating station boiler works. I worked for 34 years in Los Angeles DWP generating stations. Most of those years I was an operator of the generating station equipment. I also know that there is a lot more that could be said about generating station boilers.
Definitely the most awesome channel for learning. Concise and really educative
excellent and remarkable, like always. I understood everything very well with help of you and your marvelous illustration.
I really like your content guys it's very helpful. And i really appreciate your hard work.
Thanks, the more videos on this, the better for me. I am taking Power Engineering right now, so the more I see the better I understand how it all works together.
It is very useful video. Any one can understand the concept. Thanks for your hardworking.
thats so cool!!
i mean the explanation is well DETAILED.
thanks
does anybody beleive that too?
No
it's fun learning engineering concepts with ur video contentssss , Thank you sooo much!!
Clear and beautiful explanation
Very simplified explanation.
Very Well Done, Best Video Explaining Boiler Feedwater Flow and Steam. Thank you.
brknspacebar ua-cam.com/video/GtIWoCXh6bc/v-deo.html
Amazing explanation 👌🏻👌🏻👍🏻👍🏻 good animation....video are very good to understand the concepts.....
Boilermaker Local 60 out of Morton, IL. This is a great video!
thanx for sharing small yet important information. ....
Gotta write about all of these for my hnc. Thanks for the vid. Very interesting and useful for my thermodynamics unit
The same phenomena happens within Refrigerant pipes. Any pressure differences within the high or low sides off an AC pipe occur due to friction with the pipe surface. Differences in heat content throughout the length of the pipe effect the density off the gases not the pressure of the gas on either side. For this reason refrigerant mass tends to migrate to colder areas.
you are a gentle man.
most suitable video for thermodynamics
This channel is amazing
Very very thank you to learn engineering. Very high quality animation.
Thank you for your very helpful movies. Very thank you.
I got to the end and was "What? You stopped and now I have to watch another video?" This is as bad a season ending cliffhanger. Great video by the way.
jaye1967 ua-cam.com/video/GtIWoCXh6bc/v-deo.html
Thank you for this video, it was very helpful.
Way of explanation is too good
Great video, it`s well analyzed
Amazing explanation! Thanks
The best explanation
great great Absolutely great explanation for engineering studies.Keep it up well done
awsome stuff guys !
Good explained
The 1st heat absorption is the generating bank, (water wall). The economizer is just before the Stack inlet, at the end of the boiler Flue gas pass
Looks like a old school technology introduction video, nice
열역학 한학기 수업보다 많은 것을 가르쳐주는 4분짜리 동영상.......ㄷㄷㄷ
Ideal channel i found... 🙏
Amazing work! Thanks you!
this is really nice..... planning to study power plant engineering
## The process through which the dissolved gases are removed from water is called the “Deaeration Process”. The equipment, which is used in this method, is called “Deaerator“.
# Why do we use deaerators?…
The Deaerator (DA) tank uses steam to preheat boiler feedwater to a temp. at which dissolved O2 & CO2 will become separated from the feedwater before it is pumped to the boiler. The purpose is to protect the boiler and steam/condensate piping from corrosion that would be present when the water evaporates into steam. An additional benefit is that the number of chemicals used to treat the boiler water can be reduced.
#water #watertreatment #saftey #boilers #explotion #hazard #plant #construction #construction
techproces.com/deaeration-process/
*Excellent work ever...*
I really like this video
Very good video Sir, I was searching for this.Thank you for sharing this.
Thank you.❤
Thanku u for making it easier to understand 😇
Yes the videos are very educative
very good explanation
It is very useful video . Thanks
Cleared my doubts
Amazing video
very helpful video.thank you very much.
And you could take that 40 degree Celsius water that leaves the condenser and use it to run an turbine that uses ammonia as a working liquid/gas or a Stirling engine. This would especially work if you were next to a large body of deep cold water. Like in Minnesota or Winnipeg.
You should have mentioned that in case of REHEAT only the pressure dosent increase but falls due to bends in piping arrangement and so does it happens when saturated steam from boiler drum travels through different sort of superheat circuits. But in waterwall its pressure do increase during circulation in drum....
Great video!
I can't donate but I've been informing others of your channel and hopefully that helps.
+THEstupidANT That is great, Thank you :)
Thank you very much sir!
I work in a boiler, it does not use gas or FO fuel but uses rice husk or sawdust. from Vietnam
nguyễn Cương what is like working with the boilers if you don’t mind
Brilliant thanks
Great video animation
To think about it yes it makes sense that the water pressure in a boiler doesn't rise due to flow. That was interesting.
Very amazing lecture
Superb video..very nice
Thnxs more all Iraqi engineer follow you always
very use full message. .thanks.
really helpful! Thank u so much for explaining so clearly..hope to see another such videos :)
very good,thank u dear
This is basic but it actually helps
Great video.
Thank you...
This is very informative video.
Very Nice
A lot of love from india sir.
I think it is made by ansis or catia software.
I like the content. So helpful
Nice video! Thanks! Subscribed.
I know this before learning any piece of information.
:D
Thanks
Thank for give motivation
What a amazing video it is! thanks a lot. I wonder could i get a script about videos..
Thanks chief
Beautiful
I'm pretty sure that all viewers who watch this channel can donate $2 or $3 a month. With a combined effort, we can do it and LE can reach its' goal. Let's do it people!
+Heavenbound Daughter Let's hope so. We have already reached 1/3rd of the sustainability target thanks to our patrons :)
What about video on advanced ultra super critical technology? I would love.
😂😂😂
There are tow type of boilers:
Preasurised&vacuum..
There are tow sections in poth:
Convection&radiation
Soperheat&reheat
nice work
Cool video
i like engineering works
In our plant they are using bi-drum and two pass boiler, uses of bi-drum
Cooling system is most important in the mixer
Very clear thank you
M very happy about the video
Mind blowing sir thanks a lot
ANIRBAN GHOSH ua-cam.com/video/GtIWoCXh6bc/v-deo.html
great video. I've benn wondering how the generators(the actual machine that creates the electricity) works and i'be be really cool if you explained it in a vid.
+Jacobo Pindado We have video on alternators. Please check it out !
Thnx nice explanation.
Great work
rahul gorde ua-cam.com/video/GtIWoCXh6bc/v-deo.html
Amazing
It will be great if you make a video for supercritical boiler, because they are being developed in many countries
+Jayu Suzia Yes, supercritical boilers can give power plants a greater efficiency. We really want to make a video on it. However, I don't know whether we will last till then :(
@@Lesics I'm from 2018 and you are still alive right now
Tank for this video 🌄🌍⭐🌳🌌🎈🎈🎈🎈🎈🏝
A lot of things that produce power end up comming down to heating water to make steam (including nuclear reactors and solar collectors, which are different from solar panels).
very nice
thank you
amazing, it was really helpful,
## The process through which the dissolved gases are removed from water is called the “Deaeration Process”. The equipment, which is used in this method, is called “Deaerator“.
# Why do we use deaerators?…
The Deaerator (DA) tank uses steam to preheat boiler feedwater to a temp. at which dissolved O2 & CO2 will become separated from the feedwater before it is pumped to the boiler. The purpose is to protect the boiler and steam/condensate piping from corrosion that would be present when the water evaporates into steam. An additional benefit is that the number of chemicals used to treat the boiler water can be reduced.
#water #watertreatment #saftey #boilers #explotion #hazard #plant #construction #construction
techproces.com/deaeration-process/