Make sure you never miss a Practical Engineering video and keep up with all my other projects: practical.engineering/email-list
@shadowcoder194 жыл бұрын
My favorite channel on youtube. Keep up the good work!
@paintedwings744 жыл бұрын
I love your channel, thanks! Would you consider doing one on the impact of living things on infrastructure? Fungi can break concrete to push a mushroom up into the air; tree roots regularly buckle sidewalks; and even modern freeways can get grass growing in the seams between one concrete slab and another. When I was an aircraft refueler, we had to test our Jet-A and Avgas for bacterial contamination; and of course, the other lifeforms at the airport had interesting impacts as well. (I recall dodging a frog mating-migration as I drove the refueling truck to the tank farm, and of course, our airport was built on the flat expanse of a marsh, so; Birds.) As a polymath biologist, I'd really love to hear how engineers plan--or fail to plan--for the impacts of living things on modern structures.
@iamdave844 жыл бұрын
@@paintedwings74 I'd watch a video on that 🙂
@rickdees2514 жыл бұрын
How does an air (release) valve work when the water is under pressure. If the water is under pressure so is the air and a simple weight will have to be more than the air psi. Are there springs involved?
@dexter5134 жыл бұрын
Are you doing this because of the corona virus? was reports of people getting infected because of no traps in the plumbing in china.
@SuomiFinlandPerkelee4 жыл бұрын
This may be the only KZbin channel that answers the question brought up in the video title during the first few lines. No clickbait nonsense, no long-dragging filler talk just to make the video longer. Just simple, straightforward and straight to the point explanations. Keep up the good work!
@mradhayuda14 жыл бұрын
No fancy unnecesary animation
@Zacharyswansonchannel4 жыл бұрын
Yeah. I watched hello fresh at the end because of that. As a thank you really.
@iamme27394 жыл бұрын
Air lock, air flow, where does it come from and where does it go?
@sayujraphael4 жыл бұрын
@@mradhayuda1 you mean like Bright side?🤣
@mradhayuda14 жыл бұрын
@@sayujraphael yup. Brigh side are funny channel.
@woods-garage4 жыл бұрын
I have to say, I love how you deal with sponsors. I appreciate it so much that I often end up watching the full sponsor add at the end of the video. It is really irritating when you’re watching another channel, and mid sentence, a commercial interrupts what I was trying to learn about. In those cases, I completely ignore the commercial and focus on the timer counting down to when I can skip the commercial. Thanks again, and I love the content.
@Patrick-jd6ny3 жыл бұрын
I agree, this is my favorite way of handling them. That said, I think he does it because many of his videos are used in school settings (I found him in college engineering class, haha.) I think it's less problematic to the teachers if the sponsor is optional at the back.
@aux16613 жыл бұрын
Those mid sentence ads are not controlled by the channel. Those are inserted by KZbin where ever they please. In the last month alone i have probably been shown Ram truck commercials about 300 times!
@IrubyyI3 жыл бұрын
Airlock is so you dont get deeped on
@Yoon_gibiased3 жыл бұрын
@@aux1661 I’m pretty their talking about the sponsor ads where the person/people making the video talk about it themselves. They stop talking and edit in the ad in the middle of the video it’s kinda annoying especially since most of them don’t even put a timer or say when the ad ends
@Leandro-tb3xi3 жыл бұрын
You can use sponsorblock extension for chromium-based browsers (Chrome, Brave) on pc to automatically skip ads and annoying intros/outros or simply install vanced youtube then enable sponsorblock in the settings for android devices.
@fidjeenjanrjsnsfh4 жыл бұрын
Another form of air lock is very deadly. An air emboli is when a bubble of air manage to enter your blood vessels and can block it leading to that organ not able to get blood and can prove fatal indeed.
@kittypewpew4 жыл бұрын
And you usually get one when putting a pipe in your body (a central venous catether)
@SuperSiggiboy4 жыл бұрын
This is probably one of the reasons why they always squirt some fluid out of the needle before inserting when administering a vaccine
@Flumphinator4 жыл бұрын
Which is exactly why I eat a bleed valve for breakfast every morning.
@Yadobler4 жыл бұрын
you can also get this when you dive deep and then resurface too fast (or go on a plane too soon after diving), causing the nitrogen in the bloodstream to undissolve into a lump of air
@Alpha27494 жыл бұрын
The 'resurface too fast' you are referring to is called: decompression sickness (DCS) (also known as 'the bends' or Caisson disease). It can occur in SCUBA divers/ deep sea divers OR in High atitude/ aerospace events also, and it is when the dissolved gasses in your bloodstream come out of solution, leading to bubbles.
@gufu213 жыл бұрын
Grady: A civil engineer who frequently discusses the strengths and limits of materials within specific design parameters and expected uses. Also Grady at 8:47: scrapes a metal spoon around the inside of a teflon-coated pot.
@popcornfilms13 жыл бұрын
Made me wince
@iainballas3 жыл бұрын
@@popcornfilms1 had nightmare flashbacks from the few of mom's pans I've destroyed. A whooping would be had in this house would one use a metal object on a teflon object.
@hoobidibahbidibah81193 жыл бұрын
He _did_ say he's an engineer and not a chef ¯\_(ツ)_/¯
@elyetimx60453 жыл бұрын
@@hoobidibahbidibah8119 Yeah, but that is just common sense. Teflon is softer than steel, so it will be scratched.
@ItsIdaho3 жыл бұрын
I can still hear my mom scream "Dont SCRAPE FOR THE LOVE OF GOD"
@juanyeap4 жыл бұрын
This channel inspired me to become a student of Civil Engineering, never thought I'd be interested in sewage and drainage and other public infrastructure. Thanks dude!
@advocatusdiaboli93514 жыл бұрын
ooof, guess why he has a KZbin channel... there is no work for civil engineers. I remember I worked with a civil engineer in construction side by side as electrician.
@ivankoh37794 жыл бұрын
@@advocatusdiaboli9351 thanks for the anxiety i needed more in my life
@MrRoboticeyes4 жыл бұрын
@@advocatusdiaboli9351 the reason why he has a youtube channel is because there are a lot of people that interested and apparently work as civil engineers as his viewers. the world's population keep growing every day, and people will need house and infrastructure to support their life. So yeah, there will still be lots of jobs for civil engineers.
@PracticalEngineeringChannel4 жыл бұрын
This is just a side project. I have a full time job as a civil engineer.
@RandomGuy-nm6bm4 жыл бұрын
Curse him in 3 years when you dropped out
@jamesnorris57784 жыл бұрын
I was recently hired as a Process Operator for what will eventually be a Polypropylene plant. Having no experience in the industry previously, it amazed me to see the amount of trapped air that exist in our large 24" cooling water lines (when we filled them up we opened vents on top). Vapor lock in general has been a difficult concept for me, and your video was the first to answer and demonstrate it visually in a way that is easy to understand. Thanks a bunch!
@dylanhatch10044 жыл бұрын
I’m graduating with a civil engineering degree in May! With an emphasis in water resource. I’m going to work at a firm that specializes in large scale irrigation systems, continuous acting air vents are a necessity in these large diameter pipelines! I love seeing the backyard experiments to better visualize what’s happening in the pipe. Love the videos thanks for all you do!!
@reid63024 жыл бұрын
As a project manager for a mechanical contractor this concept is so important when flushing and filling any building’s piping system. Awesome video.
@jessephillips86284 жыл бұрын
this was absolutely the most overlooked and frustrating yet easily avoidable problem that I dealt with when commissioning new wastewater facilities over the last decade. not only was this a problem in itself, but it effected system monitoring instruments and almost always set off alarms that indicated a different problem. I lost so many nights of sleep over "critical alarms" that amounted to "just air in the pipe"
@Thinkle9113 жыл бұрын
Be happy, that it was only waste water! Nuclear power plants got affected by it, too. After a german one went a little bit to critical, a glas reactor in a german research facility was built to study steam bubbles travelling through pipes and driving the computer and control team mad with false meter readings.
@GoatPopsicle2 жыл бұрын
I went through the same thing while working with firefighting equipment and the associated infrastructure.
@ProjectileGrommet4 жыл бұрын
God you are such a good writer. I’m a sophomore in biomedical engineering and your videos are such a fun buffer from my coursework to allow me to step back and appreciate the industry as a whole. I love your topics, but your scripts are just amazing. Keep it up!
@dzim4 жыл бұрын
As someone who works as a engineer at an valve manufacturer who makes air valves, I really appreciate this video. I can now share this video to help explain to people why someone would even need something my company makes.
@heavymetalredneck79733 жыл бұрын
Im a mechanic (auto) and its amazing to me that most people don't realize that air needs to be manually released from an engines cooling system almost every time it is serviced ( flushed radiators, change thermostats, hoses etc) in order to remove air pockets, some vehicles have to be jacked up on one side or the other in order for the air pocket to escape but most have bleeder valves built into the system. This problem didn't really come about until the late 80s when everything was made more compact under the hood causing the cylinder heads to be higher than the vehicles radiator. Thanks for the video's and keep up the good work! Its never too late for old guys like me to learn how things work 😁
@Coastfog4 жыл бұрын
You're one of the channels I'm most excited about when they release something new, maybe because you don't release new content that often. But boy do I know I'm in for a few minutes of some of the best content on KZbin...
@MjkL13374 жыл бұрын
yeah even though this channel has grown a lot, it feels underrated to me
@PracticalEngineeringChannel4 жыл бұрын
Thanks that’s really kind!
@CompanyofHeroes99917 күн бұрын
This is just the best video on this topic. I must say - all thanks to you Mr. Grady fpr explaining to me all the questions about this topic.
@biggreenblob4 жыл бұрын
I work in wastewater treatment, and airlock is one of the more vexxing problems we have to deal with. It is unbelievablely frustrating to tear down and rebuild a large pump only to find that it still is not pumping enough, or not at all, then realize the air relief valve is simply plugged.
@HurricaneOK14 жыл бұрын
...That sounds unbelievably disgusting also... You sanitation folk are true heroes, dealing with THAT so the rest of us don't all get cholera... Bless you for your service!!
@markfryer98804 жыл бұрын
Everyone should take the opportunity to visit their cities waste water treatment plant to learn about its operations. You also get to learn about all the stupid crap people put down the loo. Some people just don't deserve to have access to a proper sanitation system. They should have to learn the hard way to value and protect it.
@ulogy4 жыл бұрын
Dude, I want Grady to do an entire episode on how lift stations function. And how they break down.
@louf71784 жыл бұрын
@@ulogy They grind and pump ( w/ high and low limit switches).
@louf71784 жыл бұрын
Is it really that much of an impedance? I may be oversimplifying, but I can't see flowing through air pockets as that bad, in reality??
@CarltonS3 жыл бұрын
This analysis is exactly right, but in my experience designing pipelines, it was not commonly understood by other engineers. I figured it out myself and used it in designing several pressure pipes (force mains) carrying sewage, and in many cases these had high points where gas from the sewage could accumulate. The problem there was that (1) a gas release valve at the high point could quickly become fouled with scum from the sewage, and (2) these high points were often in locations that were not practical to access for maintenance. So, I often designed the pumps to discharge against the added pressure created by air in descending legs of the pipe (referred to here as "waterfalls"). That required more electrical energy for pumping, but worked reliably with little maintenance, which is an example of trade-offs that are inherent in good engineering design.
@nazariiroudyk86603 жыл бұрын
As a plumber it's nice to know there are engineers out there who care
@CarltonS3 жыл бұрын
@@nazariiroudyk8660 And I always enjoyed learning about the "nuts and bolts" aspects of piping systems that COMPETENT plumbers understood better than I did. Everybody benefits when competent professionals act as teams with the common goal of making things work at reasonable prices.
@TheOtherNeutrino4 жыл бұрын
Air Lock is Rayquaza's ability that negates the effects of weather.
@nothankyouYouTube4204 жыл бұрын
Thank you , I knew I'd heard the term before , but also knew it had NOTHING to do with practical engineering
@Colonel_Overkill4 жыл бұрын
Sadly IRL uses the no legendary ruleset.....
@maindepth88304 жыл бұрын
169 likes, cant like
@AnshulGuptaAG4 жыл бұрын
"Oh what's that, Primal Groudon? You can evaporate Kyogre's water attacks? Cute."
@Colonel_Overkill4 жыл бұрын
@@AnshulGuptaAG yea, rayquaza, groudon and kyogre are a trio and their primal forms all have a similar ability aligning to their types.
@cindystrachan85664 жыл бұрын
My Dad would have loved your videos, if KZbin had been around while he was. He was a mechanical engineer for Ford specializing in heating and cooling systems. A brilliant man who had a gift for explaining complex systems in a simple and accessible way, just like you. Thank you.
@GreatNorthWeb4 жыл бұрын
the eyeballs are distracting i just want to watch the flow but the flow is watching me back
@darioinfini4 жыл бұрын
That's Herr Loch keeping an eye out for trouble in the pipeline.
@TheOtherSteel4 жыл бұрын
Monsters are watching from the pipes!
@jaysea59394 жыл бұрын
This and a Device Orchestra video were together in my recommended. Googly eyes taking over KZbin!
@7636kei4 жыл бұрын
Going full Nietzsche, aren't you
@Nicholas-f54 жыл бұрын
420
@karrr1573 Жыл бұрын
The avergae view-time-to-length-of-video ratio on Practical Engineering must be through the roof. All videos are so concise and engaging.
@Asdayasman4 жыл бұрын
Grady: "Air gets trapped where it's not supposed to all the time." Me: "hhhehehe" Grady: "hhhehehe" Me: :o
@jensonwilliams94044 жыл бұрын
Tazerfish hahah don't think your being serious but saafe my g
@MiniLuv-19844 жыл бұрын
very good - can i suggest the problem occurs when such entrapped air is released?
@zvpunry19714 жыл бұрын
Actually it is only a problem as long as the air is trapped. The release can become a social problem only if others are able to notice and localize the source of the released air and are offended by it. In some circumstances it can be a source of fun. This goes so far that people even invented devices like the Whoopee Cushion.
@Fraggr924 жыл бұрын
@@jensonwilliams9404 By order of the Jarl, stop right there!
@milanstevic84244 жыл бұрын
@@Fraggr92 I would, but see, I have this air in my knee
@luitzm.12804 жыл бұрын
I am a medical student, yet this videos are fascinating. I could had died without knowing whatwas an airlock, without having a change in my life, yet the complexity of this simple, yet invisible problems for anyone that is not directly involved in the engineering field, and how ingenious we are to overcome this problems is fascinating. Thanks!
@skuzzyj4 жыл бұрын
I've dealt with this on a project I worked on where we were bypassing a city's main water treatment facility. Obviously getting the water from the river wasn't an issue as we had submersibles feeding a set of high-head power units but the end point of the very long pipe run had to go over a 25' high wall to feed fresh water into their system. Basically looked like the trap under your sink but upside down. Because of this, when we first fired up the system, it was deadheading hard until we figured out that we needed to place air vents/valves at a couple places along the run. I think it took like 3 or four vents per discharge pipe along the path to get it to actually work as intended. If course we did the whole project in winter. Which meant we were sliding around in mud for several months. Fun times.
@Rottypops3 жыл бұрын
Practical Engineering : "Don't do it, don't do it..." Brain : "Put googly eyes on it"
@PatrickSinder3 жыл бұрын
lol
@hoobidibahbidibah81193 жыл бұрын
Googly eyes should become a standard necessity on any civil engineering project honestly. Practical? No. Necessary? Perhaps... Entertaining? Heck yeah!
@EdwardNavu3 жыл бұрын
Extra advantage: The googly eyes can tell if it is exerted with substantial force in horizontal direction
@zhubajie69404 жыл бұрын
Sufficient pump head and flow is especially important in U-tube (not KZbin) heat exchangers. These are commonly found in nuclear power plant steam generators and even in some electrical generator coolers and various process boilers. You can't put a bleed valve on every tube so you always have to evaluate how much head you need to drive non-condensable vapors from the tubing.
@Deacetis19914 жыл бұрын
Is it a sealed exchanger? Sealed cooling system? Or more like a pump and dump?
@revimfadli46664 жыл бұрын
Curious, what makes them have to be vertical and not horizontal?
@danneedsabeer3 жыл бұрын
As an industrial mechanic, I love your channel and end up watching your content into the wee hours of the night, thank you Grady
@hunterschulte92254 жыл бұрын
Once I land a job after graduation, Practical Engineering is the first channel I'm supporting through Patreon. Thank you for all your hard work!
@say_goodnight73424 жыл бұрын
Im a plumber, and I know a lot of us like to talk bad about engineers, but quite a few of your videos on water and plumbing are so very useful. I didnt even know about a trompe, and using some of your videos I was able to explain to my apprentices why we have to do things the way we do even though code might not demand it.
@bruceackman45262 жыл бұрын
I’ve sold plumbing supplies all my life. I love hydronics. Ya gotta learn to deal with air in your boiler piping.
@admiralbananas4 жыл бұрын
I'm graduating in May with a Civil Engineering degree and I truly believe your videos will help me be a better engineer. If anything, it's good I'm being exposed to concepts I otherwise wouldn't have been taught, but your demonstrations are ALWAYS super clear and on-point.
@cynic55812 жыл бұрын
As a boiler tech I “knew” all this stuff but the clear tube visualization really helps put knowledge to practice. Thanks!
@LiLi-or2gm4 жыл бұрын
Ah, the dreaded vapor lock that can occur on normally aspirated IC engines! I had an older Toyota Corolla that would get vapor locked in hot weather. The problem was eventually traced to the fuel line where the previous owner had replaced a section it. They had routed it too close to the exhaust manifold and in hot weather, fuel would be vaporised in the line and block the flow of liquid gas to the carburetor.
@yyiii2764 жыл бұрын
Naturally aspirated not normally aspirated. Anyway...good that you figured out the issue. Vapor lock can drive people crazy and make unnecessary repairs when the simple thing is the real culprit!
@LiLi-or2gm4 жыл бұрын
@@yyiii276 Thanks for the mancheck. _A naturally aspirated engine, sometimes known as a normally aspirated engine_ en.wikipedia.org/wiki/Naturally_aspirated_engine
@salvatoreshiggerino68104 жыл бұрын
Why would a naturally aspirated engine be more or less susceptible to vapour lock than one with forced induction?
@bradarmstrong39524 жыл бұрын
@@salvatoreshiggerino6810 It's not about naturally aspirated vs. forced induction, rather it is about carbureted vs. fuel injected. The OP clearly misspoke about this. The latter runs at higher pressure (much higher for diesel) so harder to vaporize the fuel accidentally as long as a leak is not the cause.
@salvatoreshiggerino68104 жыл бұрын
@@bradarmstrong3952 Probably not even that. I'd say the determining factor would be whether you have an auxiliary fuel pump to keep the fuel lines at an adequate pressure, and whether your fuel system has a lot of high spots that trap the vapour. There's nothing inherent about an injection system that protects against vapour lock. Some fuel injected aircraft engines are notoriously hard to hot start because of vapour lock.
@Science_Technology23 Жыл бұрын
Very useful man. I saw some man use a plastic bottle to lock the air behind the valve. and you can see it works very well. Water completly full of the tube . Make water flow very strong.
@kraps23124 жыл бұрын
The liquid in a pipe can also boil depending on many factors, heat being one of them. Many that drive or have driven older cars know about 'vapor lock'
@chuckquinn80264 жыл бұрын
kraps2312 that issue basically went away when gasoline vapor pressure was lowered for warm summer season, then raised back up for winter operation for easier starting
@justinjacob73304 жыл бұрын
@@chuckquinn8026 I've got some pickups that still vapor lock when it get to be over 90 outside
@eideticex4 жыл бұрын
Modern cars see it in the brake and coolant systems. Any time you expose your brake lines to air, you have to get the air out of there, usually with a manual bleeder valve located at strategic places like the end points (calipers/drums) and certain valves that are obvious potential reservoirs for air. Modern coolant setups generally use a loop around the top of the engine with two or more manual bleeder valves, even when you put a strong vacuum pump and cycle the fluid itself back into the reservoir, you still get little pockets of air inside the engine block. I'm sure many of us have seen mechanics bouncing the front of the car while bleeding out air, it's to knock those air bubbles loose even though it's not as effective as simply driving down a bumpy road.
@louf71784 жыл бұрын
@@chuckquinn8026 That is such a thing?
@chuckquinn80264 жыл бұрын
Justin Jacob where do you live?
@ItsSpeltChayce2 жыл бұрын
More teachers should show your videos in class for related topics. I’m positive people would be more motivated to learn thanks to good quality content like yours.
@feynthefallen4 жыл бұрын
Let's have a moment of silence in remembrance of all the legions of luckless engineers who found out those well-known facts the hard way so we can make succeeding look easy.
@Abdul-Y4 жыл бұрын
Thanks a lot, i’m a med student and i found your videos really helpful for understanding some topics that have engineering aspects. such as water hammer effect in conditions of hyperdynamic circulation e.g. anemia and aortic regurgitation, and how an air embolus forms a vapor lock. Thanks again sir for producing awesome scientific content.
@-.._.-_...-_.._-..__..._.-.-.-4 жыл бұрын
This is the most interesting video I've watched in a while. I loved the opening, about our assumptions and simplifications. I never thought about air acting as a kink in the line, and I very much appreciate being able to see it in action through the transparent pipes.
@MichaelRoach734 жыл бұрын
Who gives an awesome video like this a thumbs down? 🤔 Thanks so much for sharing. Your videos are so much fun and educational!
@The.Talent4 жыл бұрын
Back when you first did the “what’s that infrastructure” series I sent you a photo of a 5 meter vertical pipe that comes directly out of the ground in my local park. Our suburb was once a swamp and I assumed that there was probably some gasses that somehow needed to vent from somewhere underground, but now I think I would probably guess it was one of these airlock valves. And I think I remember seeing sewage department signs near by to this pipe so I guess methane and other nasties could contribute to this airlock problem. One weird thing though: why the height? The suburb was fairly flat and this was probably already at about the highest spot in the area, so maybe just to prevent tampering, or to allow nasty smells to dissipate before they fall to pedestrians nose height or something like that.
@DaAsianJuan4 жыл бұрын
This should be on top
@majorfallacy59264 жыл бұрын
If it's a pipe going 5 metres in the air it's safe to assume it didn't transport air, or at least not normal smelling air. Usually sewage lines and the like follow streets, so that's probably not it either. However, depending on where you live, a possible explanation would be an old bunker. They are sometimes located underneath parks and need ventilation. The height doesn't make a lot of sense in that case though, unless they were storing hazardous stuff.
@The.Talent4 жыл бұрын
Major Fallacy highly unlikely to be a bunker, and actually it was right near a road. You can see it on google street view. There is a wooden pole in front of the pvc pipe in this though so it’s kind of hidden. goo.gl/maps/QxeSZfc2qLpUfotU9
@theuncalledfor4 жыл бұрын
It's probably raised to reduce the pressure of the liquid at the valve, to prevent liquid from breaking through the release valve. Automatic valves aren't perfect and too much pressure might result in liquid following the released gas, or straight up leaking through the closed valve. That, or it's a release pipe without a valve that goes all the way up to, and above, the hydraulic grade line, effectively using the grade line as a valve. Air gets out, liquid does not.
@Tonatsi4 жыл бұрын
@@The.Talent I took a look around and if you look closely, you'll notice a few manhole covers that would indicate a pipe-line traveling near it (one by the small tree garden, and one close to the fence) so it is possible that it is a airlock release valve. Also, is that a faucet next to the decommisioned lamp post? Edit: I took a look from the other end of the stree so I could see the shape of the pipe, and it does look like there is a valve in the middle of it. There also might be some underground infrastructure in the area and it needs ventilation.
@DL-kc8fc3 жыл бұрын
Great video for young people who do not know the expansion vessels of this kind for the purpose. Keep up the good videos.
@nloughner20154 жыл бұрын
It's entertaining to me the differences and similarities in our industries. I do mechanical and plumbing design for buildings and we always go the way of sizing the pumps larger, even for some rather big runs of piping. We do try and remove the air for open loop water systems but those are rather easily naturally vented. And the principles of flow with sir present are accounted for with drainage piping in building codes by having them oversized. I work with civil engineers and it seems somtimes we use different principles to handle the same problems before and after the pipes leave the building
@raghavendrasharma2254 жыл бұрын
One of the best science and educational channels on KZbin.
@user-px1wj2uv3r4 жыл бұрын
I love these uncommon problems. I watch a lot of science/engineering type videos and your channel always surprises me with something I'd never considered. Thanks!
@ibrahimkhan274 жыл бұрын
Good video, learnt something new today: hydraulic grade line @1:50 Besides increase in temp, agitation or chemical rxn, Pressure drop/ change in elevation also leads to the release of dissolved gases. One of the reasons why engineers must be careful where they place a pump during design is because pressure drops within a pump housing at certain elevations can lead to vapor locks. Vapor locks are also not wanted in PFRs (plug flow reactors) because, as you said, dissolved air consume valuable space in a set pipe length where chemical rxn needs to reach an equilibrium within the given space-time.
@ianbottom73964 жыл бұрын
Another big problem you should mention is that of corrosion. Air or vapour locks in pipework can readily create an interface environment where the contents become corrosive where the pipe would be otherwise unharmed by being full of the same product. This can be a common and expensive problem where the products are acid, correctly selected grades of stainless are very resistant to strong acids but in the vapour space there is more likely to be a weak, humid acidic atmosphere which will damage the surface far more readily than the strong acid itself.
@dsc02734 жыл бұрын
I'm a maintenance fitter on a 200 km water pipeline with over 450 air valves and this explains beautifully what happens inside. I wish I was shown this when I was an apprentice.
@Anklejbiter4 жыл бұрын
7:26 I recognise this system! In reverse, it's also what lets a toilet know when to stop filling a tank - when the water level gets high enough, the float stops a valve which means no more water.
@davetourle42502 жыл бұрын
Not only did I learn from this video, I also enjoyed the way it was explained and presented. Enjoyed it, thanks.
@TheComedyButchers4 жыл бұрын
“Engineering nearly always involves assumptions and simplifications” My immediate thought: Pi=3=e
@frankieandrews94314 жыл бұрын
3.1 and 2.7 are basically the same
@louf71784 жыл бұрын
LOL. Where do you use e?
@JasperJanssen4 жыл бұрын
Lou Fazio e to the pi i.
@louf71784 жыл бұрын
@@JasperJanssen Euler's identity in construction level engineering? If so, that is absurdly crude.
@JasperJanssen4 жыл бұрын
Lou Fazio e is off by 10 percent, pi by 5. Not even close to crude.
@bishop54704 жыл бұрын
testing and balancing apprentice here, these videos are very useful for explaining phenomena that is seen in the field, you the man.
@tukriko4 жыл бұрын
Nice vid! Im in the HVAC industry, but recap never hurts 👍 Side note: some fluids tend to clog up automatic air vents so closing valve before it is handy for maintenance
@donnyjet13454 жыл бұрын
I love you videos! Very informative, and not boring. I have more respect, for someone besides myself calling it a "coke" and not soda/pop.
@adamiotime4 жыл бұрын
Hey Grady, could you do a video about how giant industrial chemical processing plants work? Whenever I pass by a huge industrial complex or a gas refinery, I'm always blown away by the huge complexity of the infrastructure. The massive web of piping literally overwhelms me and I can't even begin to conceive how people manage to design such things! 😊
@the_retag3 жыл бұрын
Each one works differently, and may need its own series of videos to even remotely explain properly
@Milesco3 жыл бұрын
@ Adam: While I share your interest and awe in such complex systems, they would be far too complex to really discuss (in anything other than the most superficial way) in a KZbin video. :-( They're cool to look at, though. :-D
@jpmonin74292 жыл бұрын
Teams and teams of people.
@samuelswanepoel79262 жыл бұрын
This information is not freely available as most of the processes has copy rights and is the intellectual property of the process engineer involved. But it is mainly the heating and cooling of a product at different stages during the manufacturing process. Mostly a huge upscaling of a product developed in a laboratory.
@sudoscience5084 Жыл бұрын
The Chemicals Safety Board has a KZbin channel where they explain accidents and incidents at refineries and other chemical plants; they also explain to some extent what those facilies do when they’re not like on fire
@bb2na4734 жыл бұрын
I had to pause and congratulate you on your gold KZbin play button. Congratulations!
@ЛюбомирДинков4 жыл бұрын
Another way of having "air lock" is when there are different metals involved or different electric potentials on both ends of a pipe. Dissociation of the water mollecule to hydrogen and oxygen is common in these conditions. Exploding "air" from the bleeder is deffinitely interesting!
@Liam1694u4 жыл бұрын
Love your teaching technique. You explained this concept better in 10 minutes than I ever got in 6 years of undergrad and graduate school.
@honich-eriker4 жыл бұрын
5:45 - What a coincidence: A few days ago, I removed an unwanted U-bend of my washing machine’s drain hose that often lead to suds locks during spinning laundry. And now the reason for that phenomenon - reduced water flow due to air lock - is given in this video! ;-)
@Overkill14 Жыл бұрын
You make the type of video I will watch 4 times over the course of a year, and also probably the only hello fresh ads that make me want to sign up
@justinpyle34154 жыл бұрын
Bro, the eyes on your translucent tube setup are super cool. Also, this is another fantastic video
@JefferyWilliamsblurp4 жыл бұрын
I was having this problem last night with my home plumbing. Having watched your video, I understood the problem and was able to take actions to correct it myself. Thanks for the great video!
@rasput1n64 жыл бұрын
*I love how you're teaching me things i didn't even know they were a problem until you said it xD*
@danwilliams48773 жыл бұрын
That's a great phrase "...perusing the constructed environment." I reckon if that's something you do....then this channel is for you. Thanks for another useful video.
@HumanFeature4 жыл бұрын
He always looks like he's just about to burst out laughing. It's contagious
@dickrichard6263 жыл бұрын
He always looks like my foreskin.
@skitzochik3 жыл бұрын
omg i noticed this too
@shouzhengtang26923 жыл бұрын
Engineer of practical humor
@pleappleappleap3 жыл бұрын
That's called "joy".
@najinkunnath60094 жыл бұрын
I have been after this topic for a long time unable to understand the depth of problem associated with it. Now I can really see it with my naked eye. Thanks a lot for the video...!!!!
@GruesomeJeans4 жыл бұрын
Another form of Vaporlock I've experienced is in automotive applications. The heat from the engine vaporizes the fuel in the fuel line creating an Air Lock and either preventing the vehicle from starting or causing it to have a tough time starting. Most of this is experienced with carbureted vehicles that use an engine mounted fuel pump. Those normally only use a small amount of PSI so it isn't able to overcome the air lock.
@moofy693 жыл бұрын
happens in diesels too when the fuel gets hot because their fuel pumps are mostly sucking fuel up the hoses so its harder to clear than a pump that pushes. so youll find most diesels have fuel coolers to stop that happening
@jamesedwards62694 жыл бұрын
As a sales engineer for a pump company, I can attest that the information you have put in your video is accurate to my experience in the field daily when bypassing municipal sewers or transferring water from one location another. Also as Hello Fresh user I can say that the Bimbop hello fresh is my favorite with the juicy Lucy burgers as a close second.
@Watchyn_Yarwood4 жыл бұрын
I always look forward to your videos. You always have an interesting topic and present it in such a way as to be understandable by even us simple minded ones! Thank you!
@thothtahuti55093 жыл бұрын
I never took engineering at or after leaving school. However you and a few other channels have truly opened up a passion in these ways of thinking about/solving life's problems and I just wanted to say thank you for unlocking another interest from within me ::)
@alanclark83424 жыл бұрын
Liking for the googly eyes (and the well explained educational video)
@flaplaya4 жыл бұрын
You wanna know what I think huh? I think this channel covers everyday stuff in great detail that is easily understood with analogies and visuals. Thumbs up bro.
@tubercelli2 жыл бұрын
Not only is his information always accurate but also he is a great speaker who is pleasant to watch.
@sasha0224 жыл бұрын
I remember living in a 1960-s Soviet mass-production 5-floor house. Living on the top floor, every time when central heating season started, we had to bleed our radiators using manual valves.
@millwrightrick14 жыл бұрын
Every steam system has that. You also need valves that let air in when the steam is shut off to break the vacuum. This is very simple to automate.
@sasha0224 жыл бұрын
@@millwrightrick1 to be frank it wasn't steam. Almost all central heating systems in Russia use liquid water.
@tedlahm57403 жыл бұрын
Alexander Gaukin Gas fired boilers?
@sasha0223 жыл бұрын
@@tedlahm5740 it was natural gas as a fuel for heating station, yes.
@kingspartacus24072 жыл бұрын
Grady does an excellent job explaining and answering the questions brought up. He makes me feel like I am also an engineer because I understand what he says when. But of course it’s because of how intelligent he is that makes it sound easy and simply. I enjoy these videos.
@LaenPvP3 жыл бұрын
Thank you for making all of the content that you create. It's opened my eyes to the world around me quite a bit more and I feel empowered to continue to learn how everything works, even if I will never achieve that goal I will continue with that mindset!
@musicplus63064 жыл бұрын
The only channel you will ever need
@thomaskilloy25342 жыл бұрын
I would like to see the airlock at 5:42 in a physical model. My understanding is that flow would not stop permanently but only long enough for the trapped air to return to the local highest point in the pipe. I feel clarifying would be nice because I feel the video makes it seem like the flow will stop and not restart and I do not expect this to be the case.
@thomaskilloy25342 жыл бұрын
@PracticalEngineeringChannel thanks in advance if you take the time to reply!
@mannys91302 жыл бұрын
Old houses on the East coast usually have "hydronic" heating or sometimes steam heating. The hydronic systems use hot water heated by an oil or natural gas fired furnace, or a boiler in the case of steam. Hydronic systems have to pump that hot water around, sometimes 3 or 4 stories high in multifamily homes. The air gets trapped up there, and therefore they use a float valve venting device exactly like what's shown in the video at the end. :) They also use an automatic feeder valve which allows water in when air bubbles get burped out. :) I was always curious how the auto vent worked, but after I saw one cut open it made perfect sense!
@TheLastHonk4 жыл бұрын
I live that your wife helps you with the Sponsor ads lol
@Norsilca4 жыл бұрын
That part is so adorable
@torque395 Жыл бұрын
Love your videos! I want to add that air locks are common all over the place in all kinds of things, and can be a real pain to eliminate. I'm having a hard time getting the air out of the cooling system of my car (which is just one reason why I found and watched this video) and the result is poor heat due to the heater core being half full of air, instead of hot coolant. Just another example of why air locks are a problem, and why they are a bigger deal than what it may seem like it would be. Air in a hose or pipe can also result in pump cavitation, which can cause noise, vibration, and damage.
@Ammothief414 жыл бұрын
This guy is a real triple threat. Got the looks, the smarts, and the youtube fame and fortune. 😂
@andy4an3 жыл бұрын
as a mechanical engineer, i care about air lock. but i find it really satisfying that in order to simulate it, you just had to put the pipes together without consideration for it. easy experiment!
@DJl3iohazord4 жыл бұрын
“I’m an engineer not a chef” That sounds like a line from a movie.
@ZyxwvuTJ4 жыл бұрын
Reminds me of Bones from Star Trek...
@TaigiTWeseDiplomat--Formosan4 жыл бұрын
:0
@Spacekriek4 жыл бұрын
I couldn't help but to think of one of Steven Seagal's lines, "nobody beats me in the kitchen".
@drstrangejove6374 жыл бұрын
@@ZyxwvuTJ Dammit Jim!
@jek__4 жыл бұрын
I'm a gardener, not a necromancer!
@zaydpeer4 жыл бұрын
Grady Hillhouse - Quality Production!!!
@RobTzu4 жыл бұрын
I work in a coal power plant. Just last night I had to clear a vapor locked line that goes into the boiler. The pressure of those lines is 2500psi. Burping those lines is always stressful. Hope the packing holds on the block valves. I am going to show this video to the guys at work.
@rajanvarghese23524 жыл бұрын
We do know the tremendous risks involved with boilers, etc. Always take safety precautions, and I guess there's a back up system in place considering the pressures involved. Stay safe....
@CampanadeGauss3 жыл бұрын
Great video and epic final. Greentings from Venezuela.
@nothingmuch20234 жыл бұрын
I love your channel, and I am also really concerned with your teflon pan. I mean, you could believe a company like DuPont if you want, but I've chosen to throw those tetrafluoride horrors out. People used to laugh at those who believed that cigarettes were carcinogens, too. 'Nuff said. Keep up the good work on the videos (love'm!), and stay safe!
@kenmccreary1702 жыл бұрын
I love how you dumb everything down for us. Great channel
@JoshBate3 жыл бұрын
Hi Grady! I love your videos and have a new video suggestion; Drain vents! I would love to understand why drain vents are required in different circumstances and how they work/help with fluid flow in drain pipes! I am sure that you are up for the challenge, and will make a great video to help people to understand :) Keep up the good work!
@Scharpy1 Жыл бұрын
That explains why I had to make sure my vinyl tubing water level had to have NO trapped air. Thank you for your great videos Practical Engineering!
@Haxters4 жыл бұрын
An airlock is where you have 2 or more doors that need to be opened to enter your base
@carultch3 жыл бұрын
That two, but that is a different kind of airlock.
@mannymorales14073 жыл бұрын
I work in the Well and Water Treatment business we get this sometimes when rebedding and changing filters, air locks restrict pressure to the house and is a pain to get the air out, very interesting and helpful video
@DeanGulberry4 жыл бұрын
I'll just get ready for the day now .. And I'm watching this video now!
@k_potassium4 жыл бұрын
The job of an Engineer is to take the science and knowledge we have and apply that to design completely new and sometimes untested systems. Well said, fellow Engineer.
@thestructuresguy83554 жыл бұрын
I love all the content you talk about in this channel. You inspired me to start my own channel. I would love some feedback/support. Keep up the great videos you present here.
@shyam2183 жыл бұрын
This thing I learnt in my engineering really helped me out. Our old building never had air release value and in summer water used to be irregular which means water is drained. So I just opened all taps if water drained in OH tank
@Vecilias4 жыл бұрын
The googly eyes helped me stay focused on the pipe haha googly eyes
@codywichman2134 жыл бұрын
That visualization with the pipes and colored fluid was super helpful in understanding why air gets trapped in automotive cooling systems
@BanditFoxx4 жыл бұрын
8:20 | “But, one of my wifes and my favourite thing to do-” “-one of my wifes and my-” “-one of my wifes-” *HOLD UP*
@vinaygautamhome4 жыл бұрын
He lives in Saudi Arabia give him a break
@ピネダア-ル4 жыл бұрын
yeah i see your gold youtube at the back and you really deserve it. More vids plsss thermodynamics and such. Great content i really need it.