Explosive Safety Testing for Bio-Fuel Storage

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In this video I test to see if a gasometer is at risk of explosion without flame arresters on the gas lines. Air intrusion in a low pressure storage tank is always a risk, so this question is an important one. Though my conclusion in the video is that wood gas is not combustible below a 50/50 ratio with air, flame arresters are still a good precaution to take. If air is injected into the storage tank and ignited quickly enough (prior to evenly distributing) there could be a flammable pocket of gas at the correct ratios to cause ignition, in which case the top of the gasometer could be blown off and expose the rest of the gas to air. This is an unlikely, but possible scenario that a flame arrester would help prevent.
If you missed my previous videos in this wood gas/bio-fuel series check them out here:
Building a better gassifier: • Testing A Better Wood ...
Building a gasometer for wood gas storage: • Bio Fuel Storage: Buil...
Thanks to all my Patrons for helping me make these videos! A special thanks to my top Patrons: Syniurge, Matthew Leitzke, TheBackyardScientist, Enzo Breda Lee, John Johnson, & Thibaud Peverelli! / nighthawkprojects

Опубликовано:

15 июл 2018

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Комментарии : 790

@Nighthawkinlight 6 лет назад

If you missed my previous videos in this wood gas/bio-fuel series check them out here: Building a better gassifier: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HQIW4dVVokE.html Building a gasometer for wood gas storage: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5hfznunVzKY.html

@theyappingvoyager 6 лет назад

NightHawkInLight, thank you for ❤ my comment !

@Felenari 6 лет назад

NightHawkInLight so uh... Gas cannon? Golfball mortar would be fun.

@SpeedDeamon95 6 лет назад

Make it run a model engine!!

@Sethro2018Gaming 6 лет назад

how hard is it to be a one man cew i know i just want to know you thinking

@garyowen3829 6 лет назад

NightHawkInLight can you Build a rocket with it

@brandonfrancey5592 6 лет назад

Instead of placing your very expensive high speed camera right next to an explosion, place the camera behind some cover and film your subject using a mirror to see around the corner. Worst case is the mirror gets damaged, and you can always flip the video in post to put it back to normal.

@BloodSprite-tan 5 лет назад

what about just using a simple zoom lens?

@NM-wd7kx 5 лет назад

@@BloodSprite-tan mirrors are much cheaper than lenses.

@BloodSprite-tan 5 лет назад

@@NM-wd7kx are you imply he doesn't already have one?

@NM-wd7kx 5 лет назад

@@BloodSprite-tan he might well, but I'd have expected him to use it if he did.

@GRBtutorials 4 года назад

@@NM-wd7kx But then the camera should be close to the mirror as well then... unless it's a parabolic mirror, but it'd probably be cheaper to buy a zoom lens. What about some polycarbonate to protect the camera?

@TheXxRenzxX 6 лет назад

The nice thing about your gasometer design is that even IF there was combustion in the chamber, the top of the gasometer would just come off to release the pressure from the explosion. It's like an isobaric system opposed to a isovolumetric system (ie. a propane tank) that would most likely explode more violently in the same situation. Still a dangerous situation nonetheless. This is a very interesting series of yours

@JMMC1005 6 лет назад

You're right, but keep in mind that something like a propane tank is more than capable of withstanding the pressures produced by this sort of combustion. A propane/air deflagration in a constant volume container only produces something like 100 psi of pressure (can't recall the exact number, but it's about that much). I imagine wood gas is similar. When it gets dangerous is when you have a system with more energy dense gasses (like acetylene), or compressed fuel/air mixtures. Look up 'hybrid potato cannon' to see how much power you can get by doing this.

@Helveteshit 4 года назад

@@JMMC1005 You can simply place a pressure valve and it should be fixed. Since this set-up makes it fairly easy to calculate the amount of pressure a filled container has. If it surpasses that, the valve will open and release excess. Allowing the pressure to not build up. Albeit, it might result in a risk of not knowing impure gases got into the tank. A simple balloon on that pressure valve. You will recognize a infalted balloon as a warning sign that hte gas is starting to get contaminated by something.

@whyisblue923taken 3 года назад

Propane?! BWAAA!

@petercoutu4726 2 года назад

Could simply place a riser tube attached to the water reservoir and going up to the water level with a simple chain retaining the upper gas reservoir to keep it from flying apart, but leaving the riser open to the atmosphere allowing for the water to evacuate itself from the rapid increase in pressure without any relief mechanical valve.

@constantinexi6893 Год назад

A bit obscure, but this just reminded me of the text with a title along the lines of "the art of distillation" by John French(?) that includes various stopper designs for a large glass flask, such as a plain glass stopper with a lead weight on it so that if pressure should build up too much, the cap would blow off, rather than the flask explode or crack, as it would be sealed and heated presumably over long durations.

@thoriso1000 6 лет назад

Slow motion flame propagation is so satisfying. Love your videos

@whuzzzup 6 лет назад

I demand a parrot-ending. Don't care about ads. Just give us the parrot!

@cameronkeys49 6 лет назад

give us the parrot

@joonasfi 5 лет назад

give us the parrot

@unpaidintern7742 5 лет назад

give us the parrot

@SapphFire 5 лет назад

give us the parrot

@MrNeboff 5 лет назад

give us the parrot

@Beyondthepress 6 лет назад

Fill up weather balloon with 75/25 mixture to make giant wood powered explosion :D I think that would make great slow motion clip

@Nighthawkinlight 6 лет назад

That would certainly be impressive!

@paulk3681 6 лет назад

You should do a collaboration

@lengaming1651 6 лет назад

And her we go!!!

@SuperBrainAK 6 лет назад

Yes please!

@MrDoboz 5 лет назад

you want wood powered explosion? fill a high pressure tank with water, and throw it into a big fire, and walk away, because you don't want to be near to it when it explodes

@piranha031091 6 лет назад

So, assuming your wood gas is pure CO, you need 1 O2 : 2 CO to be stoichiometric. Since air is 1/5th O2, and assuming the perfect gases law applies as well as neglecting the effect of water vapor, the ideal ratio should be 2.5 air : 1 CO. Or roughly 70/30. Which matches quite well with your experimental results!

@akashmukherjee2405 6 лет назад

piranha031091 absolutely correct.... But you neglected the hydrogen content of the wood gas .....

@piranha031091 6 лет назад

Akash Mukherjee : doesn't make a difference, O2 reacts in the exact same 1:2 ratio with H2.

@mashedpotatoes5323 6 лет назад

Reeeeeeeeeeeeeeeeeeeeee

@wilfreddv 6 лет назад

Thanks science guy

@deepcethree3705 4 года назад

neglecting all the intentionally left out variables, that sounds about right. Although, i do kinda wanna see what it'd look like if we used the combined gas law and included the appx ratios for the other gases in wood gas.

@dylandepetro4187 3 года назад

I think your wood gas series is perhaps the best series you’ve done on here. Wood gas has so much untapped potential, yet many people don’t seem to know about it.

@simonrose751 6 лет назад

those combustile vapor high speed shots were amazing

@naominekomimi 6 лет назад

I really appreciate this. I feel like most creators I've seen would've responded to people saying that you should do something and complaining with hostility, or if it wasn't necessary then anger and acting smarter than them. But here instead of lashing out at people who range from concerned for your safety to overly critical, you treat it as a valid concern and then discover for yourself, with your viewers along for the ride, whether or not the concern is necessary to have. Rather than just telling them they don't know what they are talking about. I really appreciate that.

@greenftechn 5 лет назад

I couldn't agree more. In the spirit of inquiry, no need to let one's ego get in the way.

@christopherfreeman3260 2 года назад

Are you making a complement by bagging on a hypothetical issue? How weird.

@davethesatellite7319 6 лет назад

This was awesome! I loved the 80/20 slomo more than the 75 as the internal fireball was really quite pretty! Cant wait to see what's next!

@zuthalsoraniz6764 6 лет назад

This footage also pretty neatly shows off some of the difference between a rich and a lean air-fuel mixture. In the 60-40 mixture explosion, the flame is quite bright yellow, which indicates there is unburnt carbon - there is just enough air for the wood gas to ignite, but not enough to burn all of it. On the other hand, in the 80-20 mixture, the flame is much paler and blue instead of yellow, which indicates that all of the wood gas does burn completely, due to enough air being available for it.

@kennoseworthy6473 11 месяцев назад

Are you a furnace guy? They are the only people I know that knows that! Cheers! btw,, i'm not one. lol

@syntaxusdogmata3333 6 лет назад

The opening alone earns my Like! Never underestimate the appeal of your sillier experiments!

@zell9058 6 лет назад

I was downright queasy with that expensive high-speed camera getting soaked with water ! Excellent video👍

@qhack 6 лет назад

I'd be curious to see how you would compress the wood gas and store it in an old propane bottle.

@LukePettit3dArtist 6 лет назад

What he said. I came here to say just that.

@JonathonFrendo 6 лет назад

i agree with this. that would be awesome.

@mfarmes 6 лет назад

Q-Hack! I believe Mr teslonian has done that on his channel

@phalanx3803 4 года назад

with that small setup the compressor from a fridge would work.

@NerdlabsSci 4 года назад

I'v been planning to do that

@sdrawkcabdaernacuoy 6 лет назад

Great video! Now that you know the right mixture for good combustion, maybe you could create a simple engine that runs on wood gas.

@xenon5927 6 лет назад

I love woodgas!!!! Please continue the series a while. 👍

@BBURN2007 6 лет назад

This is a very interesting series! I look forward to your videos every week!

@trulyinfamous 6 лет назад

Popping balloons of wood gas? How about trying to compress it and put the gas into a cylinder/tank.

@BonesMcoy 6 лет назад

there is a man on youtube who is running his truck off of wood gas

@allenstanley3418 6 лет назад

I believe wood gas when pressurized cannot return to a volatile state

@BenjaminVestergaard 5 лет назад

Wouldn't that cost more energy than the woodgass provides? Of course, a steam engine could do the hard work, but the final question is whether it's worth it... adding a weight on top of the gasometer while in use would provide more gas pressure of course... Just thinking that building the pressure necessary for the gas to go liquid would be too much work.

@augustovasconcellos7173 5 лет назад

@@BonesMcoy Did he make the system himself? Cars and trucks can be run on wood gas no problem, and so a lot of wood gas conversion kits were made in Europe during ww2. He could've been using one of those.

@adorabasilwinterpock6035 3 года назад

Thats not a good idea, could easily explode and you can’t store hydrogen for any length of time anyway. If it explodes Carbon monoxide will spread and likely kill anyone in the vicinity as well.

@jimfenno8833 6 лет назад

Now that you know the magic "fuel:air" ratio, let's see a follow-up "fuel:oxygen" video! Then move on to some sort of wood gas fired spud gun, or better yet, a cannon! Keep up the great work! Sure wish I lived in your neighborhood...

@HavokTheorem 6 лет назад

If it takes a 60:40 AFR to cause ignition and atmo is 20% oxygen, it's pretty simple arithmetic to guess that about 12% oxygen is required to ignite 88% woodgas. You can probably make it even richer than that since there isn't nitrogen diluting the combustion.

@joebedell37 6 лет назад

Love the series. I have a coworker who wants to do this and was really excited when I told him about your channel. Keep up the good work!

@jordanhorst6 6 лет назад

Video idea: bio fuel cannon!

@akashmukherjee2405 6 лет назад

What a beautiful slow motion footage.... Brilliant demonstration of A-F ratio explosion..... Good job....

@DancingRain 6 лет назад

It's videos like this that are the real gems of RU-vid. Bravissimo!

@hilltop4847 6 лет назад

I'm loving this series!!

@Pauls-Welt 6 лет назад

Nice to see that pure woodgas really don’t burn. A lesson learned in school shown in a practical experiment - nice! Greetings from Germany 🇩🇪

@cainofthejungle 3 года назад

How come I see this 3 years later!?! Anyway, I love the candid-ness. And I actually laughed out loud from those explosions too. This is a great one.

@FloydtheFlamingo 6 лет назад

i don’t comment much. but i’ve been a long term subscriber. love each one of your videos. you never let me down. amazing work always.

@simonsmith2802 6 лет назад

What you should have done with your test tank you should have put string on the test tank and suspend it above you so when it flys up in the air the string won't let it slam to the floor and your test tank will always be intact every single time

@Moock91 6 лет назад

Pretty fun stuff indeed! Your explanations are always so clear and concise, sweet!

@boocchihitori4450 6 лет назад

I really enjoy your works... Thanks for uploading these..

@willtelscher1881 6 лет назад

I remember watching you a few years ago. I just re-subscribed as I don’t use my old account anymore. You were one of my inspirations for making fireworks! Great vids!!

@mikereynolds8804 6 лет назад

This is so cool, and a real eye opener. I figured the amount of air necessary for ignition would be a lot less. Useful! I Subscribed!

@Xerxz5115 6 лет назад

It's very entertaining to watch you do these experiments. And you probably have the best video quality on youtube!

@owenwhitman6616 5 лет назад

Good information. Thanks for doing the leg work and giving us a solid starting point.

@docretier2544 6 лет назад

I just wanted to say how much I love the work you do. It always makes me feel so happy when I see a new video from you. Please keep up the amazing work.

@mjernix7656 6 лет назад

Why are all of your videos so satisfying to watch?

@kevinbowker2385 6 лет назад

That looked like a lot of fun! Good info too, thanks for holding the experiment and sharing the results!

@ReDMooNTVV 6 лет назад

always nice to have an upload from you, Night!

@stevejohn 6 лет назад

really enjoy your videos thanks. i made the pop gun with my nephew last year and he still talks about it was a great time

@josephbloggs6455 5 лет назад

Fun to see a video with less effort like this every so often. It feels more relaxed and makes for a nice change of pace.

@utubeaccess7 6 лет назад

Thanks Knighthawk, i am moving soon to a wooded acreage and I plan to produce and store woodgas for fuel. This helps my research a lot.

@MagisterMalleus 6 лет назад

The best part of this was seeing how much fun you were having.

@randomactsofcooking 6 лет назад

That was fun to watch. Oh, and informative too. Thanks.

@andrewlalis 6 лет назад

Very excited to see what you end up using the wood gas for.

@kerhst 6 лет назад

Takes me back to my spud gun days. $0.99 cans of hairspray, at a ratio of about 15:85 was good for 150 yards. Good times. Love seeing you work with this unique fuel.

@timothybarker5085 5 лет назад

Great video! Love watching your projects. Keep up the good work.

@Qigate 6 лет назад

Just discovered your videos and they are so much fun to watch. Thanks for sharing and explaining all that you do, great shows!

@smashino 6 лет назад

I love how much fun YOU had in this one :)

@Freizeitflugsphaere 6 лет назад

Great video! I really enjoyed!👌🏼👍🏼

@shaggnar2014 6 лет назад

I just want to say that the lighting in your videos is always spot on

@Nighthawkinlight 6 лет назад

Really? I thought this one I did a pretty bad job with. But thank you!

@Name-js5uq 5 лет назад

Man oh man that was one of the best videos I've ever seen of yours I loved your happiness I love your enthusiasm I love watching you laugh because you remind me of myself when things go boom a little bit. Anyways thanks for that enjoyable few minutes that you just gave me.

@thetruthexperiment 4 года назад

people think everyone is stupid and somehow a comment is going to save your life and you're going to be so grateful. When in fact, everyone thinks they suck. Probably even their closest friends find them disappointing.

@GarryNichols 3 года назад

more videos like this, please! That was awesome.

@davidscott5903 6 лет назад

Thank you for showing how safe it can be.

@GoatChease 6 лет назад

You seemed to have a genuinely good time filming this video, I would definitely like to see more videos like this.

@garywaggoner1953 4 года назад

there is just something so oddly satisfying watching stuff explode, however, your reaction is priceless ! LOL Thanks for 10 minutes of humor in my day !

@justinsickles4229 6 лет назад

Night, what are your plans for a long term storage? I do understand that the water in the current storage device is used for filtration. So after you believe the wood gas has been purified enough, do you plan to find a way to compress it and store it in some type of tank? My thought process is an efficient storage tank to use as the fuel for an engine of some sort. Keep up the amazing work!

@elyeli6250 6 лет назад

I was thinking on modifying a bicycle pump (or building a pump) so that it can intake purified wood gas to be pumped into either a metal air tank (those small metal tanks for holding air for air tools) or making a woodgas tank out of ABS or PVC (whichever generates less static) so one can be used for powering a small engine.

@syninys100 6 лет назад

Wood gas is, among other factors, CO and H2. Compressing it will promote production of methanol. Now, there's still a kinetic barrier (that's why to do it deliberately one uses a catalyst and heat as well), but that's a thing to bear in mind if compressing it. That said, methanol is a useful fuel, with higher energy density than a gas - if it wasn't toxic it'd be an almost ideal fuel for many purposes! In practice, most wood gas is a bit deficient in hydrogen to be optimal, however. Still, if one wanted to go to extremes, then making 'water gas' with the left over charcoal is how to get more out of the fuel.

@greenftechn 5 лет назад

@@syninys100 It would be interesting to set up a contest to see who could extract the most fuel from a given weight of wood stock.

@TheBobcat418 6 лет назад

I love how you can see a hint of green flame in the 60/40 mix, was the copper aerosolized when the wires arced or was there another source? Great video! I am loving the biogas series.

@LANCEL0T 6 лет назад

Great quality as always. Keep up the great work. :D

@PKMartin 6 лет назад

If you want to go full 19ty century with your gas, I'd love to see this in a small jet power a limelight - you can use a modern butane lamp mantle or make your own with quicklime and cloth

@alan7w751 4 года назад

added to my wood gas playlist!

@shinevisionsv 6 лет назад

Awesome video as always!

@littleship2473 6 лет назад

Its funny how you are blowing stuff up to see how safe it is. Enjoyed it very much

@MOMO-qe6gm 6 лет назад

Man where have you been. I love your channel

@Cramduck 3 года назад

Aw man. I'm so excited about this. I am hoping to get a solar-focused wood-gas processor up and rolling someday. you've got all the tricks I need

@texasvoice2082 5 лет назад

These videos are proof that *anything* can get dislikes on RU-vid. I watched all these wood gas videos straight through all at once. Good stuff.

@BlackWolf42- 6 лет назад

I've watched you since you made your debut here. You showed me how to make multi-break shells and how to properly spike them. You likely didn't have any grey hairs and your hands were soft and your joints ungrizzled. You've come a long way on youtube and in your personal life* (unverifiable). I sort of feel like a proud parent watching his kid grow up. Keep up the awesome work, tough guy.

@Nighthawkinlight 6 лет назад

Ha, no, I had gray hair back then too

@tinker2561 6 лет назад

How cool is that colour transition of the fire ball from yellow/orange to green. Great work dude!

@davidrobinson7112 2 года назад

Excellent instruction....the mistakes add to the knowledge base. 👏 Thank you very much

@bruceacagle 6 лет назад

The videos are GREAT, I subscribed and can't wait for more!!!!

@lyndsaybeck2249 6 лет назад

Really enjoy your indepth exploration and explaination. Any chance you could tackle a vegetable based biogas project?

@rockytom5889 6 лет назад

Lyndsay Beck He would need to modify his current gas maker to be more of a low temp boiler because methane(not pure,of course)is a byproduct of rotting plant matter(composting),which is sped up by moderate heat and high air humidity in the chamber.And that's pretty much it.

@joem1309 6 лет назад

I can’t wait to see where this experimenting goes, hopefully an amazing project (I haven’t watched the full series yet so my apologies if you already told us what the end goal is)

@agnosjr 6 лет назад

Thank you for sharing!

@grayem76 6 лет назад

great to watch as usual

@oggzm4982 6 лет назад

You had way too much fun doing that, on that note, back to the start to watch all the lead ups :) sub'd

@jelgue 6 лет назад

Explosions AND great high speed shots. I was laughing as well! :)

@JonnieMazda 6 лет назад

Another way to store the gasses is to have two 50 gallon drums on their side with one directly over the other. Have a pipe that goes from the bottom of one drum to the bottom of the second drum. Have a hole in the top of the upper drum as a vent and fill the bottom drum with water. Then on the top of the lower drum you have a inlet where you add your gas (your schrader valve might work) . As you add gas to the bottom drum and the pressure builds the water has nowhere to go but through the bottom pipe up into the empty top drum and because the bottom drum is sealed and only has one exit at the bottom it will just keep pushing the water up to the top drum. The water that is now in the top drum will want to drain back into the bottom drum but cant as the bottom drum is sealed. However if you ever completely fill the bottom drum with gas it will just vent out the vent top drum.

@RobertSzasz 6 лет назад

JonnieMazda but if that does detonate/burn you're screwed. The sliding portion of the gasometer provides an easy pressure relief by moving up, the barrel would have to catastrophically fail to release the pressure.

@TrollFaceTheMan 6 лет назад

7:20, very interesting the delayed reaction and what appeared to be smoke or fire that formed leading just up to it.

@MrPeka13 6 лет назад

TrollFaceTheMan Hey, ma man! And interesting is why there is green fire after explosion 🤔

@suckinDiesel44 6 лет назад

Rough guess, it required more activation energy before it could ignite, the smoke was likely the beginnings of the reaction which could only take place in the high energy of the plasma, but once it got going the rest was able to ignite.

@zoeyk.6338 6 лет назад

I'd say it's just the insulation on the wires of the igniter burning off

@sajedeid3903 6 лет назад

Great job 👍👍

@daviaquino3625 6 лет назад

03:04 @NightHawkInLight I was testing my new monitor with your video and you do this to me? hahahah great video tho

@drewbransby4600 6 лет назад

That high speed is gorgeous

@Benm555 6 лет назад

Just wanted to say that you're my favorite RU-vidr. Nothing but good content and interesting ideas. In a way, it reminds me of watching Mythbusters when I was little. Keep it up!

@windsunh2o 6 лет назад

I love how much fun you had with this one. Had to listen to your laugh at the first explosion at 5:21 a few times XD

@BossOfAllTrades 3 года назад

Now that I look at it the water is almost like a safety feature itself preventing the heat from expanding

@Flederratte 6 лет назад

Great video, thanks for the upload. Beautiful flame colours!!! Please do some slowmotionshots of the burning woodgas and airmix inside a clear container or bag, or even inside some soapbubbles.

@GTX4747 6 лет назад

thank you so much dude, now after watching 4 videos, I learned: 1. what is wood gas. 2. create a device to produce wood gas. 3. making that procedure pretty efficient. 4. how much air to mix to make it explode. 5. wipe out all the useless PhD's in my university. and possibly all humanity :)

@63256325N 6 лет назад

Thanks for the video.

@Tonio020589 Год назад

Congrats, you just figured the upper explosive level of wood gas. The best explosion you'd get, if you had something like a little mixer, bc not only the ratio, but also the mixture of the two components air and woodgas is quite important. I really liked this 👍

@speedbuggy16v Месяц назад

OK, subscribed, anyone that has as much rube goldberg engineering in their videos deserves that much!

@kngofbng 6 лет назад

I came here to comment after you told me to :P Dude, awesome work as ever. Keep it up, RU-vid can always use intelligent content!

@sgibbons77 6 лет назад

Another awesome video!

@ProPyroPower 6 лет назад

You are so boss! i am loving the new content! very good logic and information,

@runetitan-lx4ih 6 лет назад

That's a really clever, quick and easy way of removing gas from a container

@chris_1337 6 лет назад

Fantastic video!

@aronbraswell1589 6 лет назад

still need to make an ethanol trap. Wondering how much ethanol you get per volume of wood gas?

@hakon5873 6 лет назад

Awesome! Love this channel

@jordanbennett6461 6 лет назад

That's pretty awesome and reassuring. Would love to see some experiments showing how long one of those tubes will keep a flame going and maybe some low tech ways of compressing the gas into a propane tank

@Schradermusic 6 лет назад

I like that you're using my valve. Thumbs up!

@markzamiechowski5352 6 лет назад

Hey nhil cant you use a fridge compressor and some other stuff to hav the gas get pumped first through a air trap like the opposite of a p trap so no water gets into the compressor then to the compressor then through some hoses to a 1/2 or 1/4 compression from where then it can go to a reused prop. Tank? Also have a ball valve so u can vacume down the propane tank so no air?