Thermoacoustic Engine/ Old Boy
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- Опубліковано 12 кві 2021
- This engine stood in a damp cellar for a few years. Cylinder and piston cleaned.
The glass tube was re-cut. The engine runs clean and fast.
This engine is for my friend Ed in Sweden✌ - Наука та технологія
Fascinating Brother !!! Keep up the good work.
Yes, it's going well. Thanks for your comment.
Wooow. It's always so satisfying to see an old sterling. Thank you sir for sharing
Thanks for the nice comment. If I have time, I will rebuild the engine in detail with all dimensions👍
Congratulations, you've achieved impressive performance for this type of engine configuration! Result of a perfect balance in the project!
Thanks Leandro, it is now running in Sweden. My friend Ed loves old things.✌
Thanks, indeed I got it and am VERY pleased 🎉
Fantastic project! Nice! Thank you!
Great video! Thank you.
mesmerizing simplicity
Yes, it is fascinating that a sound drives a machine.
Für einen Laien sieht das sehr interessant und spannend aus! Da muss man erstmal drauf kommen. Heiner 🙋♂️👍
Spielzeug für große Kinder. Wenn du mehr über diesen Motor wissen möchtest bist du bei www.w-haag.de genau richtig.
Wissenschaftliche Informationen über Thermoakustik und Strömungsmechanik findest du im Internet und natürlich auf UA-cam. Danke für dein Interesse ✌
Все просто и работоспособно, респект вам
nice work
Thanks ✌
Good job 👍 sir
Thanks a lot
Fantastic
Rugged , Tough and Perfect👍
Thanks a lot🙂
Cool!
Thanks, that was my first engine built 10 years ago.
Look here: ua-cam.com/video/PHr0NVo8HTw/v-deo.html
Bravo ,funziona benissimo mi piace anche la finitura antica.ciao
Ciao Paolo, grazie per il bellissimo complimento. Sono abbonato a te da anni. Cordiali saluti Hein
Woow มันสวย งาม มาก.. ฉัน ชอบ มัน
ขอบคุณ. ขอแสดงความนับถือประเทศไทย✌😎
bravoooo
Thanks 😁
That's not thermo-acoustic. That's running on thermal inductance. Excellent variation of the Stirling engine. I think it deserves a new category name. So far I've seen Alpha, Beta and Gamma type Stirling engines but this configuration is completely new and unique as far as I know. It looks extremely efficient. I'd be interested in seeing some performance comparisons.
Thanks for the compliment and comment. Unfortunately, I am not an inventor and not a millionaire. It was first described by Bryan Higgins in 1777. The Singing Flame. Or the Rijke tube 1859. That is the basis of this machine. A sound wave is generated on the steel wool and the acoustic wave is refracted on a pinhole and converted into kinetic energy. So thermoacoustics after all.
It is also used as a chiller. From the steel wool to the flywheel, everything gets hot. It gets freezing cold at the top of the pipe. You can find information on the web. You can find the blueprint at www.w-haag.de
Stirling engines always have 2 cylinders. 1 working cylinder and 1 displacement cylinder. ua-cam.com/video/pSKL0tdWRjo/v-deo.html
The marbles are the displacer. The working cylinder is the piece with the cooling fins
@@heinwonneby907 I agree, it's thermoacoustic indeed.
@Scott Mason: dude, this is absolutely thermoacoustic engine. This engine working based on difference of sound wave frequencies; short wave and long wave. Of course it's less power efficient if compare to stirling engine types but this engine is so "quite" due to less moving components. I think if we make this engine in bigger size, it would works "better" than stirling engines.
Is the steel wool inside the cylinder required for the engine to run? Or can it run without steel wool?
Yes, the steel wool generates the acoustic wave in the resonator (test tube). I took the fine steel wool from a hardware store and rolled it very loosely and cut it to 3 cm with scissors.
@@heinwonneby907 alright thanks for the information. Gonna build this engine soon
@@chrismots6479 have fun✌️
What is the name of that tube used to burn
The tube is made of borosilicate glass, it is extremely temperature resistant. From Schott Duran ca. 100×16 mm
wonder how well that would work on a large scale.
Not so good as an engine. The smaller the more power. With heat exchangers you can also get bigger😉
that could be something for you😁ua-cam.com/video/PHr0NVo8HTw/v-deo.html
@@heinwonneby907 i have a target range and im tired of shooting at things that dont move. was thinking this could be a good enough to spin a wheel. no electricity in the woods I could use battery power but wheres the fun in that.
I shoot a field target, we have a solar motor for moving targets. If that's too boring, a big Stirling engine will do. he has real power. Or a water-cooled flame eater.👍
does the tube have to be glass
that is a good question and not an easy one for me to answer. Usually not . The test tube made of borosilicate has proven itself in this type of model construction because it can withstand extreme heat and fluctuations in pressure. It gets extremely hot from the flame to the Piston and cold to the tip of the tube. My attempts with brass and copper pipe have failed. Its melted. the tubes were 1mm thick. that's why I stayed with glass.
@@heinwonneby907do you have an email so I can ask you questions? I am planning to follow your steps and produce this for my final year project.
Hm...how does it work?
Here the sound makes the music (Rieke Röhre) A sound (oscillation) is created on the steel wool in the pipe. This oscillation is broken through a hole in the brass part and converted into energy, which drives the piston. In addition, there is a cold zone in front of the steel wool and a hot zone in front of the brass cylinder. Since the piston moves this air mass, there is always a little overpressure and underpressure, which also provides energy. So if you match the cylinder and tube volume exactly to one another, you will get a very powerful machine.😎
what material are the pistons?
The cylinder is made of honed brass and the piston is made of aluminum and ground to fit👍 Size: 15X 20mm
@@heinwonneby907 thanks
steampunk !!
How to make this
This machine looks very simple. It's complicated to build, you'll need a mill and a lathe to make individual parts. You can find building instructions for simple machines without special tools on Google or UA-cam. A tip: www.w-haag.de or Manual do Motor Sitrling on UA-cam👍
I have done a same type of thermo acoustic engine with borosilicate glass test tube and steel wool it's not working properly why is it happening? Can you suggest me the amount of steel wool used and time to get the piston work itself please..... 😭
Hello Tamil, remote diagnosis is very difficult. The machines look simple. It's complicated to build. All moving parts must run without friction. The piston and cylinder must be very tight. In Germany, steel wool has the number 000. That is very fine. It is loosely rolled and 3cm long. Take a look at the page: www.w-haag.de. You can translate the page with Google. Make a film and post it on UA-cam. Then you see the problem.👍
Here are a few more measures.
Brass cylinder. Hole 15X20mm. Aperture 5mm. Piston aluminum. 10x15mm. Stroke 20mm. Connecting rod 60mm flywheel approx 70x5mm. Glass tube 16x 160mm. Steel wool fine 30mm. The length of the glass tube is decisive for the speed. Long = slow. Short = fast. It never works the first time.
Thank you hein I am on a school project that's why I asked you here in India I don't get steel wool that much fine enough I will follow the measurements you gave me...
For the piston I don't have aluminium do you know how to make it or how to get it ....please help me bro my project just has a week of time to submit...
oh, a week is very short. I hope you can do it. It's a shame India is so far away. Please film it with your smartphone. Then you know what the machine looks like and where it is stuck. Take a look at the site of Leandro Wagner from Brazil. he builds great machines with simple material. it may help. The material of the piston does not matter. the main thing is that it runs easily and is tight. Send me a link from your film.
@@heinwonneby907 yeah sure I will try it and send you my film link soon thanks you for your idea👍
ماهي المادة السوداء داخل الانبوب
مترجم جوجل. الصوف الصلب. الحجم 00
الطول 3 سم. أنبوب اختبار البورسليكات. تحية من ألمانيا
Hi , It's amazing, I made one that looks exactly like it but it didn't work at all, would you help me and tell me where is the secret , thans
That's too bad. Cylinder 15mm diameter. 20mm long. 10mm stroke. Aperture 5mm diameter. Piston 15X 10mm. Those are the measurements. Compare your machine with the plans from www.w-haag.de.
The piston must run very tightly in the cylinder. I hope it helps you.
@@heinwonneby907 your piston seems longer the 10mm