Combustor Liners 3 - Turbine Engines : A Closer Look
ฝัง
- เผยแพร่เมื่อ 19 ธ.ค. 2011
- A line up of eight combustor liners from five different manufacturers allows us to compare the similarities and differences in the design of this critical but often overlooked component of gas turbine engines.
- ยานยนต์และพาหนะ
love these videos. this is stuff every engineer studies in school, but few get to actually see.
I am a GSM student and Have been watching all your video. Thank you very much for all.
You teach better than all teachers I ever had.
AgentJayZ - I've got to say, your videos are a geek's paradise. I greatly enjoy your tours through turbine engine parts, start-ups, running, afterburning snow-clearing, etc. Thanks for taking the time to post super-interesting and informative videos.
Hi, it is my believe all of us, fans or workers in the aviation, power plants entusiasts, need to thank you for your great work. You are transfering to all of us, what you love to do. Today we learned more of a very special part of these engines, the combustion liners. I remember wrote about the annular liners, and they are quite expensive units. These liners are used in the commercial airplanes and more fuel efficient than cans. Thank you again and keep doing this great work.
It is amazing that much of this technology was advanced long before computers were able to calculate CFD. Trial and error wasn’t an efficient way to create these assemblies, but the results of manual engineering was astonishing, producing great engines long before computers helped fine-tune these to be more powerful and efficient.
I just discovered your channel and am finding this stuff fascinating. I'm a teacher. You're a great teacher! I'm amazed that people can figure these designs out and have such confidence in them! I'm also amazed with how "simple" the basic design is. Your description of the burners reminds me a little of the burners on a gas stove with an ignitor in just one spot. Thanks!
A very interesting report on the development of various combustion chambers. - Can - Combustors, tube - annular combustors and finally annular combustion chamber as in history. I have never in my life seen before these parts so close and well explained. Thank you :)
Thanks for taking the time to make these videos, I have been watching a lot of them tonight and am learning alot! Thanks!
I want to say thank you as well. I started learning about Jet engines not long ago. I spent a few hours watching one animation of a Turbo Jet engine until I finally wrapped my head around the way it worked and ever since I have been almost obsessed. It was very nice to see actual internals instead of just animations, they had actually had me puzzled for a long time about how such a thing would be mass produced. My biggest puzzling thought I seen you tried to explain was how to design the best possible designs for parts like the combustion chamber. I found the Pratt And Whitney the most interesting, I liked the way that it would make the fuel air mixture create a swirling motion before it moved onto the next cycle like normal piston combustion engines try to do with their intakes.
Thank you for the clarification. There aren't very many ways a non-expert like myself can get a look into the inner workings of these engines. It's very nice of you to share your experience.
Wow, thanks for the tour, I really enjoyed it!
Thank you for the video. I've been fascinated by gas turbines for years and have just begun the deep dive into understanding their theories of operation. The video has been very helpful for a beginner like me!
Great look at all the various components of different engines. This sort of stuff is few and far between on youtube, so thank you very much for taking the time to record and explain the various functions of each part in easy to understand terms. Great to get an insight into the innards of these engines.
Every video (episode) more and more amazing. Do not stop making it. Thank you
Your enthusiasm for your field is inspiring
Thanks. Good study material for pilots and I always love seeing animals in the shops. They are cute, funny and provide much needed comic relief. Studying does get stressful every once in a while!
As usual you are the best of the best in my book ,and the way you describe em is the beauty of these videos .
This is so much better than reading my textbooks.
sooo cool, thank you for explaining it to those of us who love them but aren't sure how the detail of it works, we kind of do now, Awesome
This was a GREAT lessons,thank you very much Jay!
I tell you right in the video, at the same time you see it, that it's from a JFS100. It's a small gas turbine starter used by several US military engines.
This was great, thank you for doing it.
Spoiler alert: the cat is the chief engineer.
OMG!!! It’s the head of the IG88 Bounty Hunter from “The Empire Strikes Back” !!! LOL
Well done, thanks a lot for sharing!
thanks my brother for all videos .
We weld repair them using stainless steel. The better the design of a combustor liner, the cooler it runs.
In modern engines, they are ceramic coated. I'm not sure what the underlying metal structure is made of. Possibly Inconel, but it may very well be stainless steel.
Fascinating! I always wondered what the annular combustors looked. Great to compare several different designs side-by-side.
Amazing video and knowledge, Thank you.
Built combustors baskets for gas turbines at Westinghouse in the 80's! The Westinghouse 501 was an awesome engine to work on! We basically used Hasteloy, and had to punch out the holes and spotweld the rings together! Metal was too hard to drill!!
Thanks for showing this is very interesting
I work in a technical field and have to know how energy moves around. I take pride in my knowledge and ability. You, sir, blew my doors off with this video. I can surmise what's going on with the engine and fuel air mixture based on your explanation alone. The pure Tonka Toy geekiness of this warms the cockles of my heart, though. Thanks for posting.
This is another well explanation of combustor liners. Once I talked to you about annular combustor liners, but you don't work those, they are for commecial aviation. Thanks for this video and all the other ones. You are a good teacher!
Great video! A great addition to books.
Hey just wanted to let you know your vids are awesome im a marine just started in my unit as a mech on hueys there a bit different than these turbine engines but im tryin to learn anyway i can and your vids r really helpful so thanks and i hope u will keep doing them
We work on large industrial engines, occasionally military flight engines, and very rarely special projects like land speed cars, race boats and UFOs.
Never mind that last one.
The PT6 is a civil aviation engine, and we are prevented by law from working on anything in civil aviation.
There IS an industrial version, called the ST6, but it is rare, and we have never seen one. Maybe someday...
Top video. Always beautifully explained.
Very informative...keep up the great work,i look forward to your videos very much.Thanks very much
Merry Christmas...Bob
Brilliant video, thanks a lot!
Great Video! Thanks again!
You make me wish my day had 200 hours Jay !
I could watch your vids till hell freezes over !
Great overlook of the different designs. The inner combustor liner of JFS-100 looks preatty simmilar to the ones we use in our small gas turbines (ring of fire :-)). I`d love to have one of those old J-79 combustor liners - they look so cool.
Really interseting video - thx for showing.
Thank you for the video. Greetings from Spain
cool. I like the final scene when you shoot through the liner.
You are providing very valuable information sir
Very informative, thanks for sharing
Sweet! Thanks Agent Jay!
I enjoy your videos very interesting
Awesome video, thanks a lot.
These videos are amazing
The T56/501 uses a set of can-type liners inside a common outer case. This is known as the can-annular, or cannular arrangement.
The can-type arrangement is what you see on our Orenda type 14 or J47 engines.
These inaccuracies, presented in an instructional manner, are forcing me to remove your comments, as they are misleading to people who may not already know and are trying to learn.
Thank you for this. I learned allot
absolutely awesome, thank you for patiently showing us, explaining in just enough detail to understand it but not so much detail that it's boring, monotonous and we wish I'll upon you and shop kitty.
@TheMan1510 A cmbination of stainless steel for toughness and resistance to cracking, and refractory alloys like Inconel or Hastelloy for maintaining strength at very high temperatures.
They live in an environment of 1000mph wind at a temp of roughly 1000F, so they are built to be as far from fragile as possible.
thank you for the very interesting video !!!
Great video. Thanks
@MoowChair The pressure difference between the outside of the combustor liner and the inside is very small; just enough for the air to flow inwards through all those holes.
The main stress on the liner is heat radiated from the flame of the burning fuel.
Thank you for your response. I look forward to watching your next fuel nozzle videos.
Woah, that CF-6 combustor is pretty sweet. The J-75 can-annular one is also quite interesting. Thanks for the videos!
@egn83b I don't know what makes a sterling engine work, but I think it works on the Sterling cycle... ?
A piston engine works on the Otto cycle, and a gas turbine works on the Brayton cycle.
These things, descriptions of, of me, ask you not... of you , in advance, thank, do I.
Hi DrZ, I really love your videos and your excellent commentary. A special thanks to Shop Kitty.
What Paul said.
Very interesting, and answers a bunch of curiosity. Thanks mate
Another great vid Jay. Excellent close ups. Question please:- What feeds all of them mixing holes to cool the burnt gases in the combusters? Is it from airflow around then engine? How does this work in a fighter jet set up? Cheers.
thank you very much for the explanation. Appreciate it a lot. Regards.
Hi , thanks for uploading such an amazing video, you are a star
Thanks for the video!
It is there to swirl the small amount of air that comes through the snout and is used for initial combustion of the fuel. It is swirled to both decrease its axial velocity and to promote better mixing with the spray of fuel coming out of the fuel nozzle.
This is a general description. Keep in mind that combustor liners are designed by a mixture of trial and error, black magic, and a tiny pinch of aerodynamic theory.
I have a Rolls Royce Derwent combustor liner. I was looking up info on it and found a really good PDF of an old Rolls Royce book called "Rolls Royce the Jet Engine Fifth Edition" that has some pretty interesting info on the configurations of the different holes on their liners. For curious folks, like myself, it's worth checking out for sure.
Yes, that book is one that I am always recommending.
Thank you for sharing!
Friday in the classroom teaching turbine engine theory at Red River College. Shop kitty was a big hit. Thanks for your vids!
I applied for a job there... No response.
@@AgentJayZ You're too cool for this place.
@circe362 I think so, but I didn't look any closer than in the video. And it's in the engine now...
like the video. reminds me of when I was in high school we had an aircraft maintenance shop class. makes me wish I stayed the course and went to a tech school.
Excellent thank you for sharing
Thanks for taking the time to show this stuff, it's fun to see.
What did you study, and for how long?
What is your role at that shop?
What kind of metal are those made of and why?
Some of those designs are very aesthetic, especially the one with 6 mixers. Others have some resemblance to the Dyson blade-less fan.
Thanks!
That was neat jay! Question, do the full annular designs still have a turbine inlet guide vane yes?
@mytmousemalibu Yes, the turbine inlet nozzles direct hot combustion gases at the turbine. Whatever it is that makes those gases it not something the nozzles worry about.
thanks for your useful video
Great vid! Can we get some thoughts and a tour on that Yamaha SR sled in the background? Drool.
Amazing site, I work for Rolls-Royce and used to make the anular comdustors for the Panavia Tornado, the RB199 turbojet, I was the main Quality inspector. In now make the large fan blades for all the Trent series engines, very big fan blades
Thanks for sharing!!
I don't call them injectors, because they contain no valve or other method of controlling fuel flow.
They are not called combustion chambers, because the space where fuel is burned is made up of two separate parts: the outer case and the liner.
There are different types of liners, so the question of how many ignitors per liner has several answers: either one, two, or none...
Thank you for sharing 👍👍
Thanks! Great video!
Fantastically interesting!
I really enjoyed this evolution-peice!
Would it be possible to make more of them? like from J47 (or earlier) to the present on various parts?
I get that this was a rare opportunity, perhaps acquiring the footage of various parts over time could be a solution to that?
Hey ur videos are just amazing , I have been watching ur videos . Just wanted to know how many Ignitors and Injectors are present in an combustion chamber.....
thank you very much. that really help me with part66 B15
I am so much interested in your imformative videos thanks a lot SIR......
Great video!, do you have any videos illustrating fuel injectors: pressure-swirl, vaporizers, and airblast ? Many thanks!
Great video fantástic thanks...
@465maltbie Inconel and other refractory alloys like hast-X... are extremely difficult to weld.
it seems in your video's watching and listening gives me the answers I seek thankyou
the burner cans from the Orenda turbo-jet are larger than the J47 are these more powerful
or are they bigger for greater cooling air around the inner cans
this engine has really grown on me, I will try to find a small model to go with my RR Nene model but do want the Orenda and not a J47, thanks again AgentJayZ
I'm just a guy who works with the stuff, and is interested in the history of how it all came to be the way it is...
Lucky enough to get to tear apart and put together his boyhood dream... Jet engines and Rocket ships !
Ok... got a bit carried away there...
Thanks for that Jay!
Rich.
Thanks for watching?? Thanks for showing!!...
The J75 is my favorite... Very cool design!
Thank for the show very good design. My like. For replication in my byke or motorcycle yes
Extremely interesting!!
He knows his stuff..
Cool videos !!!I am very impressed with them all.My job is closely related. I work at a laser shop, and we laser a lot of parts for the aerospace industry. I happened to notice one sitting on top shelf behind you at the beginning of this video and was wondering if you could show us where in the engine it goes.We call it an M08 and burn all the holes and tabs at the top of the part. Thank you keep up the awesome videos!!
Can u tell how many types of combustion chambers are there??