ฝัง
- เผยแพร่เมื่อ 3 มิ.ย. 2024
- Save LE from extinction ! Make LE's efforts sustainable. Please support us at Patreon.com .
/ learnengineering
A detailed analysis of typical power plant boiler is illustrated in this video with help of animation. Here working and construction details of water tube boiler is explained. Different parts of boiler such as economizer, super heater, re heater, water wall and steam drum are illustrated here. This video also explains an important concept during boiler heat addition process.
Like us on Facebook : / learnengineering
Voice-over artist : www.fiverr.com/mikepaine
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.
you are right! we are industrial boiler manufactor in China, have 50+ years experience in boiler making, our official facebook have professional knowledge in boiler structure, running, operating etc, welcome you to visit our facebook page facebook.com/china.sitong.boiler/?ref=aymt_homepage_panel, and my personal facebook no is changhong zhang
Hey Ray, what do you know about advanced ultra super critical technology?
Hi I'm Mahabubul Haque from Bangladesh n working in power sector for foreign manufacturers/suppliers generation, transmission n distribution products marketing through international tender.
In our country there are many sugar mills n there small type power substation.
But we need your support for production of energy in our sugar mills.
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
I really like your content guys it's very helpful. And i really appreciate your hard work.
You put things very nicely it is worth watching your 5 minute video rather than read a book for hour🙌🙌🙌 hats off!!!
Definitely the most awesome channel for learning. Concise and really educative
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.
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.
Most trusted channel for engineering concept explanation ❤️
Gotta write about all of these for my hnc. Thanks for the vid. Very interesting and useful for my thermodynamics unit
thats so cool!!
i mean the explanation is well DETAILED.
thanks
does anybody beleive that too?
No
excellent and remarkable, like always. I understood everything very well with help of you and your marvelous illustration.
Dear friends, We hope you liked the video. Currently we are in a financial trouble and planning to stop our service after winding up the current projects ( 3-4 month) . If you would like to help us, please visit our Patreon page. Thank you !
www.patreon.com/LearnEngineering
+Aminus Vox At the end of the day money matters. If your production cost is more than the revenue, there is no chance of survival. However Patreon gives some hope ! We are at 1/3rd of our target.
Your videos are really amazing, and I prefer these videos more than my university lectures. I hope you come out these financial crisis soon. God bless you :)
+Farhan Shakeel Thank you for the well wishes :)
+Aminus Vox Let's hope for the best.
also hoping you overcome the obstacles. I love the way you explain things graphically. Best engineering channel on yt undoubtly.
It is very useful video. Any one can understand the concept. Thanks for your hardworking.
Very very thank you to learn engineering. Very high quality animation.
thanx for sharing small yet important information. ....
it's fun learning engineering concepts with ur video contentssss , Thank you sooo much!!
Very good video Sir, I was searching for this.Thank you for sharing this.
really helpful! Thank u so much for explaining so clearly..hope to see another such videos :)
Very Well Done, Best Video Explaining Boiler Feedwater Flow and Steam. Thank you.
brknspacebar th-cam.com/video/GtIWoCXh6bc/w-d-xo.html
great great Absolutely great explanation for engineering studies.Keep it up well done
Amazing work! Thanks you!
Thank you for this video, it was very helpful.
Clear and beautiful explanation
Very simplified explanation.
This channel is amazing
Boilermaker Local 60 out of Morton, IL. This is a great video!
most suitable video for thermodynamics
Amazing explanation! Thanks
*Excellent work ever...*
Thank you for your very helpful movies. Very thank you.
Thanku u for making it easier to understand 😇
It is very useful video . Thanks
Amazing explanation 👌🏻👌🏻👍🏻👍🏻 good animation....video are very good to understand the concepts.....
Great video, it`s well analyzed
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/
very helpful video.thank you very much.
very use full message. .thanks.
Cleared my doubts
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 th-cam.com/video/GtIWoCXh6bc/w-d-xo.html
very good explanation
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.
Very amazing lecture
Looks like a old school technology introduction video, nice
Great video!
This is very informative video.
very good,thank u dear
Thank you very much sir!
Thank for give motivation
Yes the videos are very educative
Very clear 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/
Nice video! Thanks! Subscribed.
I like the content. So helpful
awsome stuff guys !
Good explained
What a amazing video it is! thanks a lot. I wonder could i get a script about videos..
Great video animation
Thnx nice explanation.
you are a gentle man.
Way of explanation is too good
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
The best explanation
Great work
rahul gorde th-cam.com/video/GtIWoCXh6bc/w-d-xo.html
Superb video..very nice
Amazing video
Great video.
Thank you.❤
Ideal channel i found... 🙏
Brilliant thanks
Beautiful
Mind blowing sir thanks a lot
ANIRBAN GHOSH th-cam.com/video/GtIWoCXh6bc/w-d-xo.html
nice work
I really like this video
thank you
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 !
Thank you...
I know this before learning any piece of information.
:D
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.
Amazing
ooo really your video helpful
very nice
Awesome.
please help me. I have measuring points I want to use a sensor in boiler, turbine, and furnace and I have bourdon tube, diaphragm and bellows bell gauges. what 's the best sensor of them I can use it ?
excellent vedio!
Very Nice
M very happy about the video
Thanks chief
thank u sir
i like it .....what is the program you use it to make this video
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....
I can't donate but I've been informing others of your channel and hopefully that helps.
+THEstupidANT That is great, Thank you :)
Nice!!!
To think about it yes it makes sense that the water pressure in a boiler doesn't rise due to flow. That was interesting.
In our plant they are using bi-drum and two pass boiler, uses of bi-drum
Cool video
Great everything. 👍👍👍👍👍
i need to ask a question i hope to find the neat answer here with u
the pressure of the net of the steam .. does it equals with the vapor pressure of the water at sat. temp when the boiler is creating the sat. steam???
are they the same pressure??
Thanks
çeviri için teşekkürler ÖZLEM ÇEVİKBAŞ
excelente !!!! seria buen una version en español