The Hot Air Engine that You Never Did Before - tutorial with tin cans and spider
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- čas přidán 6. 10. 2022
- The Hot Air Engine that You Never Did Before - tutorial with tin cans and spider
#hotairengine #tutorial #diy
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Ingredients:
1piece tin can:
2 pieces tin cans:
1 piece empty portable PB gas tank
middle grade steel wool
1 piece 45˙ copper elbow 18mm
3m hose
1 piece 4" speaker or a spider spring with same parameters
M5 nut, bolt and washer
2mm thick paper
super glue
sodium-bicarbonate powder
silicone
scissors, plate cutting scissors
permanent marker
tooth brush or other brush
black tape (optional) - Věda a technologie
![[TUTORIAL] Free Piston Stirling Engine /NASA type/ - 2020 Updated version disassembling](http://i.ytimg.com/vi/iAu4as9fRNo/mqdefault.jpg)
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Great video again! I was going to reply to another comment, but here's what I think
With a crankshaft you can drive a DC motor pretty easily, which would output DC without the need to be rectified.
A more traditional generator would be a little more complicated because of the AC output. The simplest full-bridge rectifiers consist of just 4 incredibly cheap diodes.
Whether you use a DC motor as a generator or make your own, I'm certain you have the skills to out one together.
I had the thought of putting a fan blade on it and sticking it on my wood stove to circulate some warm air. I'm not sure what would happen after an hour or so when the entire thing heats up though. I'm certainly not going to want to keep putting wet paper towels on the top half every 20 minutes. Or even if that did work just leaving it alone, put a little DC generator on it. The problem with those Stirling engines is you have to input a lot more energy than you can get out, but since the wood stove is burning and generating heat already, you may as well use it for something.
He measured the torque of the engine as .45 Watts I think it was? But the amount of heat energy he was putting into it to get that power out was a Lot more than that.
You've surety made more engines than Stirring himself.
Probobly you've right, but if he didn't make one, or that few, than today we can not choose these units for our hobby. Thanks for your comment! BLADE
I really appreciate this kind of production value! So many heat engine videos out there *still* use blurry cameras and don't explain a single thing. This video you've made actually takes us through the whole build process and is easy to follow. Thank you!
Thank you very much to your kind words! You've made my day! I will try to make more interesting videos in the future. BLADE
Super Cool Blade, thanks!
Your welcome! 🙏 Thanks to your feedback! 👍 BLADE
Maybe this simple design is usefull for making a stove fan. The most simple design there is. I don't like peltier element stove fans because they melt quickly, are small, convert little energy, and can not be placed anywhere, and the fan has an electric motor that can not be placed everywhere because it melts too. My stove needs more air supply, and more heat distribution to the room, but it has to be simple and robust.
Sensacional!!! Gostei muito, você está sempre se superando em suas experiencias!!! Very very nice my friend!!!!😊😊😊😊😃😃😃😃🙏🙏🙏🙌🙌🙌🙌❤
Obrigado Marcos, você é um bom amigo! :) 🙏 Eu só tento mostrar coisas cada vez mais novas... As pessoas nem sempre gostam tanto, mas eu nunca desisto! Espero ver seus novos motores em breve também! Grande abraço! BLADE
So far outside the square :D love your work always looking forward to more !
Thank you NZH! ;) My box is much bigger, so I'm in My box. BLADE
Hmm.. Put a fan blade on that in place of the flywheel, and set it in my wood stove. Cooling the top half would be problematic though. I'm not really going to want to keep swapping wet paper towels on it every 20 minutes and after a while, I'm sure the overall mass would heat up and lose a lot of speed, if not quit working all together.
I know they already have wood stove fans that run on heat but I'm not exactly sure how they work. If it's some kind of Sterling engine or a Peltier type device.
Dear Keith, the cooling is not a big deal if you can add a water jacket to the top half from a bigger can. The water will boiling up, but the temperature will not growing up as 100C there if there is some water. The stove has much higher temperature so it will work well. The tube could be a problem but you could change it to silicon and turn it around the top, or use solid tubes... I saw Peltier and Stirling stove fan too, this one is not the ideal to it, but you can make one if you want! BLADE
This is a standing wave thermoacoustic engine. The reason why the hose increases the torque generated by the engine is likely due to the fact that it acts as a resonator, amplifying the sound waves generated by the engine and increasing the amplitude of the diaphragm's vibrations. This, in turn, increases the amount of mechanical energy that can be generated by the engine.
Standing wave units has one one tube resonator with one piston usually. We have two pistons here with phase shift. The bigger one is connected to the displacer directly as Manson engine does but I changed the displacer with regenerator also no valve here, just a long tube as resonatot/control piston that could change the pressure and turn the cycle back. Do you know about Manson/Ericsson cycle? This unit has a cycle something like that. Not as a standing wave engine where the cycle is close to the Bryton.
@@AttilaBlade have you tried shortening the hose and putting it in a cup of water, then running the engine?
@@AttilaBlade a working ratio for a standing wave thermal acoustic engine with a hose is 596:1 (cubic inches)
So engine has 596 cubic inches of internal volume, it needs to have 1 cubic inch of internal hose volume.
For example:
The volume can be calculated using the formula for the volume of a the hose:
V = πr^2h
where V is the volume, r is the radius (half the diameter), and h is the height (length) of the cylinder.
First, we need to convert the height of the tube to inches, since the diameter is given in millimeters. 6 feet 6 inches is equivalent to 78 inches.
Next, we need to convert the inside diameter from millimeters to inches. There are 25.4 millimeters in an inch, so 3 mm is approximately 0.118 inches.
The radius of the tube is half the diameter, so r = 0.059 inches.
Now we can plug in the values and calculate the volume:
V = π(0.059)^2(78)
V ≈ 0.817 cubic inches
Therefore, the air volume inside the 6 foot 6 inch tube (1/8 inch diameter) is approximately 0.817 cubic inches.
@@LES_Thermodynamics Yep, you've right about the resonator tube. In that tube we have a pulsating gas, that works like standing wave. This movement controll the cycle of the engine. But the cycle inside the unit is not same as a standing wave engine does. The gas piston's movement has a phase shift to the Power/Displacer piston. I've made a 2D sketch video how Metronome unit works around 8 years ago. My english wasn't good but I think you will understand that. BLADE
@@AttilaBlade great! Gotta love hot air engines and how many unique designs are out there. I am going to post a video later today of a standing wave with a diaphragm and a resonator tube, thermoacoustic engine. The tube inside of water drastically increases the torque and speed of a thermoacoustic engine
Super like 👍
Thanks very much Cédric! :) BLADE
Hazámban van egy mondás:
A megjelenő falu nem akar idegenvezetőt..
ebben az esetben ;
A nagy dolgok nem igényelnek bemutatást vagy magyarázatot.
Ennek a konstrukciónak a membrándugattyúja nagyon értelmes.👍
Teşekkür ederim arkadaşım! :) You are too kind! It was an idea only, maybe it could be good for a long time! :) I remember a 6 years old promise that you wrote us under your video. You will make a paper cylinder tutorial to all! Did you forget this? I really want to see that video tutorial! (And new others from You too!) BLADE
igen haver..
Teljesen igazad van minden szavaddal.
6 éve megígértem, és most nagyon szégyellem, mert nem tudtam betartani az ígéretemet.
Azt szeretném, ha mindenki megtanulná és gyakorolná a papír erõhenger készítését és mindenképpen készítek róla egy videót.. Nem akarok durva lenni veled, ha még egyszer elfelejtem..
Higgye el, több motor vár a befejezésre, amilyen hamar csak lehet, beindítom és újra csatlakozom hozzátok.
Azt hiszem, olyan valakinek kellett felébresztenie, mint te.
köszönöm..
Bu gerçekten iyi bir haber! Umarım sağlığınız yerindedir ve "sıcak hava motoru" modellerine olan ilginizi kaybetmemişsinizdir. Kaliteli motorlar yapmışsın. Birçok insan güzel motorları sever ve sizinki temiz ve kaliteli ve bir çay mumuyla çalıştı. Hayata geri dönersen çok sevinirim!
Super
🙏 Thanks very much!
You always splitting the power output into the displacer and working piston. Is there no way of capturing both loads and put them to use ?
Probobly I'm not really understand your idea now... Could you write me this from other direction?
I watched your old video on the metronome. It says that the power piston diameter should be 46% of the displacer diameter. This engine does not follow that rule. Can you explain why?
The membrane type piston has a solid "piston equivalent" diameter that came from the displaced volume and the stroke. Probobly not the best but worked well.
Could you replace the hose with another diaphragm?
Theoretically this is a possible thing, but not so easy to tune it up to the right frequency. I thought about it a lot. That's why I've made the crankshafted version and the free controller-piston version. Lot odf things not clear enough around this type of engine, but every changes opens new possibilities.
Szia Attila!
...es ha a lendkereket helyettesitenenk egy video magnobol kiszerelt LBDC motorral(8mm vastag es 68mm atmero +-140g)... erdekes volna lemerni hany wattot termelne egy ilyen kis generator.
Szia! A BLDC motorok ugye mágnes, vasmag, tekercs felépítésűek, szénkefe nélkül, viszont a baromi nagy erővonal sűrűség miatt minden mágnespólusnál tapadópontok alakulnak ki, amit nehéz legyőzni, főleg fogyasztóval terhelt állapotban. De jó ötlet, mert így lendkerék is van. Igazándiból a puding próbája az evés.
@@AttilaBlade Meg egy kerdes. Amit a Rober"MadScientist" Murray Smith videojaban emlitettel:
"Probobly our best design was the gap regenerative version where we do not use any low heat conductivity grain in, just a coaxial gap around an inner can. " az melyik szerkezet is pontsan?
En most talaltam ra erre a mufajra es a csatonadra. Le a kalappal nagyon tatszik amit csinalsz.
Мой метроном получился не таким эффективным. Ваша модель - пример для подражания!👍
Вы знаете, в чем проблема с вашим двигателем? Вы можете показать мне? Я постараюсь помочь, если вы не против! BLADE
@@AttilaBlade после просмотра Ваших видео, есть над чем поработать. Но. Он у меня во время работы резко останавливается. .. Чуть позже специально загружу видео, чтобы посмотрели