Authorized Personnel Only Hydroelectric Plant Intake Screens

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3 жыл бұрын

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Пікірлер: 95

@thehilltopworkshop 3 ай бұрын

"Shovels and rakes and implements of destruction". - I know an Alice's Restaurant reference when I hear one.😂👍

@gavinperch9413 2 жыл бұрын

I had issues grasping 332 cubic feet until I saw how deep that water is. I've just recently learned how much energy you can get from water and it gave me a lot of interest for it.

@Physicsduck 2 жыл бұрын

Round numbers, that's about 2500 Gallons. That's a good sized swimming pool every ten seconds.

@GuretoSefirosu 2 жыл бұрын

I wish all dams had those bars. Dams scare me. The amount of water and pressure. I don't even get remotely close to them on my boat. Being sucked in is a BAD thought. With bars like that you at least stand a slight chance of climbing up to the surface until somebody can help.

@Bildo1986 3 ай бұрын

Bubbles and roar. I'm pretty sure I went to college with those fellas.

@AndrewHemstreet 24 күн бұрын

I was part of commissioning some large gas turbines, 480MW took 1735 pounds of air and 43 pounds of fuel (natural gas) per second dry, 800ft above sea level. Water injection would boost output as volume out was much greater than volume in. At times it would be over 2000 pounds per second and a lot less fuel

@gs8548 3 жыл бұрын

You need to make a playlist for these. Fully rad video.

@Physicsduck 3 жыл бұрын

That's a good idea, there's going to be a lot of videos in this series. Thanks for watching!

@jimmartin7881 3 жыл бұрын

Reminds me of having to clean the intake grates on the macerator at the hospital when I first started, you would not believe what can go through a hospital's septic system. Thankfully I got my stationary license and glance at a computer screen every so often while watching YT videos on hydroelectric plants now, lol.

@gravelydon7072 3 жыл бұрын

Things that would get you in trouble with us. 1. No life jacket on. Does not matter if you can swim or not, with that flow, it would suck you against the needle rack. And hold you there. 2. No safety fence so the life jacket requirement. If a safety fence then not required. 3. Do not see a life ring. Your water flow was what one of our pumps moved and we had 3. Our needle racks went down 26 feet. We had fiberglass rake handles on 20' potato rakes for manual work near the top and an electric rake for going deep. Spend most of a shift on the needle rack cleaning and you went home tired. We at times had to call in one of our cranes with a clam shell bucket to keep up.The worst thing to find just before shift change or on a Monday morning after a weekend shut down, a body against the needle rack. Your day will be shot as you can not leave till the police say it is okay. Nor can you move any water during that time.

@daniellong2543 4 ай бұрын

A life jacket would not help.

@vindrisk 2 ай бұрын

It's not a public pool. You're the type of person who fell off a 10' ladder and call OSHA because you weren't provided a fall restraint system.

@mikea5923 Ай бұрын

How often could there possibly be a body in there? You make it sound like it was a weekly occurrence.

@speedman69420 Ай бұрын

@@mikea5923 Now im scared to work at a powerplant, because im afraid il find a body.

@TheSilmarillian 5 ай бұрын

I like the high tech shovels and rakes and implements of destruction....Alices restaurant? Arlo Guthrie .

@Physicsduck 5 ай бұрын

Yup, some of us are Old. :)

@peter_NED 3 жыл бұрын

dutch polder pumping stations often have a automatic grappels suspended by cables that just drop down and pick up all the trash. i have not seen the floating bariers in use dutch serch term: krooshekreiniger

@technicalvault 28 күн бұрын

I’ve seen something similar where the New River intersects Bowes Road in north London. It’s quite amazing how much biological material it manages to pick up.

@alexgoldstein7997 2 жыл бұрын

Thanks for making these great videos Chris, I love how stoked you are on hydroelectric dams.

@Gollammeister 2 жыл бұрын

No safety railing at the waters edge?

@forensicdeathconsultants 2 жыл бұрын

This looks like a safe job, NOT. Lol 😂

@Physicsduck 2 жыл бұрын

Check out my other Hydro Dam videos here: kzfaq.info/sun/PL-3Y2XexL9dRz9zskedt9vejSoNFmAESQ If you like what you see here, I'd appreciate your help to continue making free, educational videos for all: ko-fi.com/captainboden

@randacnam7321 3 жыл бұрын

The upside down wallpack on the building offends me to no end.

@perryraybuck1239 3 жыл бұрын

for real.

@Physicsduck 3 жыл бұрын

I can't believe I never noticed that until you pointed it out. I don't know if I should fix it, or leave it to bother people in the future.

@randacnam7321 3 жыл бұрын

@@Physicsduck Also looks to be pulling away from the wall and thus bits are going glug glug.

@lightingnut 2 ай бұрын

Lol oops there it is upside down. Wonder how long it has been that way.

@agnelodsa788 4 ай бұрын

In Saudi I seen rotating meat drums at the water inlet of the thermal piwer plant. The drums rotate slowly and there are persons stationed at the top to remove the debris from the mesh screens.

@starwolf621 4 ай бұрын

Love the shades, man!

@araksaenthaweesuk1707 3 жыл бұрын

Thank you for sharing water resource engineering.

@jimnasby 2 жыл бұрын

Cleaning those screens in winter has gotta be pretty dangerous when it's icy.

@TheKurtsPlaceChannel 2 жыл бұрын

Very entertaining and fun to watch. Thanks for posting this.

@janetcohen917 2 жыл бұрын

I wanna party, with you, man. LOL. Those are MADDD, skills.

@wilfvoss 3 жыл бұрын

Thank you, really interesting video!

@davejoseph5615 10 ай бұрын

A diagram would be nice. Also a safety discussion would be nice i.e. is the flow rate enough to be dangerous to a swimmer?

@scottrobbins6216 2 жыл бұрын

What safety measures are in place for the rake guy ? Is he tied off

@chriscollingwood6650 2 жыл бұрын

Loved the Arlo Guthrie reference 🙂

@allezvenga7617 3 жыл бұрын

Thanks for your sharing

@Physicsduck 2 жыл бұрын

Thanks for watching!

@lightingnut 2 ай бұрын

I want to see the other end where the water comes into the canal.

@Rickster5176 3 жыл бұрын

There's GOT to be a better way to do that than manually with a rake.

@Physicsduck 3 жыл бұрын

Better, certainly. But cheaper, that is the company way.

@SkyboxMonster 2 жыл бұрын

are there powered self-cleaning screens at different locations?

@SeanBZA 3 жыл бұрын

Saves the turtles, but the fish turn into fish soup.

@johnnyangel3441 2 жыл бұрын

We in the Netherlands we have trash cleaners is like a big crane and pick up stuff

@jonduggan7433 Жыл бұрын

@2:51 And I thought I was the only one who still used that expression. Shout out to Arlo Guthrie, "Alices restraunt massacree".

@lohphat 2 жыл бұрын

To me it would make more sense to have a bypass behind the gates that could shunt all intake around the turbines to a bypass spillway. Then you would just activate the bypass, raise the gates, and open the spillway to flush out accumulated debris.

@esaflaka9155 2 жыл бұрын

Not having a railing and pointing over .. gives me anxiety if you accidentally fell… you’d be sucked into that and not able to leave. I’d be scared

@0xDEADBEEF666 3 жыл бұрын

Is silt a problem? How do you deal with that?

@JamesLee-oe7mt 2 жыл бұрын

If a person were to fall in front of the grates when water is flowing, would they be able to get out or would the water pin them?

@KiloDelta173 Жыл бұрын

The force of the water would absolutely pin you to the grate. You’d have to be harnessed and hoisted out.

@DuramaxL5P 3 жыл бұрын

What is the largest size of debris that can make it all the way through the turbine and out the other side? I'm thinking if there was a catastrophic failure of the intake screen.

@charlessmith1366 3 жыл бұрын

It depends about hardness possibly logs or plastic it doesn't really matter cause sand rips them up so anything else would definitely mess them up

@SamSitar 3 жыл бұрын

they have a HUGE intake screen.

@guygadbois1068 3 жыл бұрын

Seems like there should be a more elegant solution to clean those intake screens besides a bloke with a rake

@Physicsduck 3 жыл бұрын

There are, but they're more expensive than they're worth for this size of plant. They make automated ones, and if you work in a wastewater plant they're worth the money.

@gravelydon7072 3 жыл бұрын

@@Physicsduck Or a flood control pump station.

@BarryChumbles 2 жыл бұрын

That's some good water-based enthusiasm! 😄 Water-way to have a good time (etc.) Why isn't there a finer mesh on the intake screen? A lot of that crap you raked up looking like it would happily fit through the gaps in the screen.

@kaaconkiwi Жыл бұрын

Why do not have a trash rack cleaner? Helps a lot. LOVE your content😍 We are a cooperative in Spain with 2 hidro power plants. A doble Francis first and 3 peltons in another. Buena suerte con la central y ánimo!! Más centrales hidroeléctricas necesitamos y menos carbón y gas.

@nikerailfanningttm9046 Жыл бұрын

They do have a rake, you seldom see these rakes as they are cumbersome and large.

@tulsatrash 2 жыл бұрын

Searching the channel for roar does not seem to return a sequel to this video.

@jamespeck4895 2 жыл бұрын

for larger items that hit the screen, do you have any sort of equipment to pull large logs and other stuff that is too much for hand tools?

@Physicsduck 2 жыл бұрын

We have a chain hoist that sits over the screen for big stuff like logs.

@jamespeck4895 2 жыл бұрын

@@Physicsduck Any tongs or something similar to attach to the log without going in the drink? There is a dam near me that has rakes attached directly to their stoplog hoists. I think the rakes are homemade

@jerryolson3408 2 жыл бұрын

Trash racks is the proper term

@mlv3999 Ай бұрын

I have absolutely no idea whether or not this will be read, but how would you deal with massive logs, if they were to somehow find their way to the grating? I imagine it wouldn’t be exactly safe, practical, or - in some cases - even possible to lift them by hand.

@JT_8283 2 жыл бұрын

Post 10 found a good job for ya

@wolffry 9 күн бұрын

@chris boden God forbid, but is the delta P too great for someone escape if you fell in while cleaning it?

@ScottBrandt 2 жыл бұрын

Only 20 ft. of head? Amazing to get that amount of power out of only a 20 ft. drop.

@dancolucci 7 ай бұрын

I wonder if they've ever found a body

@Physicsduck 7 ай бұрын

Yes.

@burningglory2373 Ай бұрын

Is there secondary screens for finer trash? Or does the turbines do a ok job of sucking that through?

@kepaskane9008 10 ай бұрын

Do you also have tutorial videos on penstalk and surge thank ?

@Physicsduck 6 ай бұрын

We don't have those at our powerplants.

@wastedblues2 3 жыл бұрын

Our group is looking for a hydro plant for sale. Know of one in Michigan?

@usnva5638 3 жыл бұрын

The Edison Sault Hydropower Plant in Sault Ste Marie I believe was shut down. But it might be up and running again... not sure. I used to fish behind it with my Uncle Sonny back in the early 80's and at that the time said it was no longer generating power.

@steammausss164 2 жыл бұрын

Delta p are the most dangerous things about hydro electric dam and I wonder if the current could get you trapped onto the grid

@tekvax01 3 жыл бұрын

Hey Chris! I thought crossing the streams was bad?! :P

@Deepestofoceanicblue 3 ай бұрын

Just noticed you've got the bit open where the stoplogs go and you're filming, there's leaves you could slip on etc. I would not have the balls to do that, I'd be too preoccupied avoiding falling into the water on both sides of the screens. Damn.

@MilitantPacifista 3 жыл бұрын

Do the grates reduce efficiency due to turbulence as they would with a jet engine turbine if they had screens in front of them? or does that amount of water just not care?

@patricksworkshop6010 3 жыл бұрын

Air is compressible and water is not, turbulence is less of an issue as water is constantly pushed by whats behind it forward, air is a bit different

@gravelydon7072 3 жыл бұрын

Only if the needle rack is clogged. I have seen ours have a difference of a foot in height between in front or behind and your turbine in this case will not make as much power or in our case, our pumps had to work harder. If they are clean, they don't affect the water flow much as they are designed into the system.

@zakksrage 2 жыл бұрын

So how is a piece of a car messed up the turbine then?

@yellowlabdavis7170 2 жыл бұрын

Bootsy wear a safety line ?

@b3j8 2 жыл бұрын

This is one of those videos like pimple popping where your brain gets some "closure" therapy from cleaning those grates. Thanks there "Dr." Boden.😁

@gogutzy Жыл бұрын

HSSE doesn't look so good sitting on wet leaves at the edge...

@StrugglerZero 2 ай бұрын

Hey man I hate to be that guy, but where’s the guardrails, the safety harness w/ anchor & lifeline any fall protection whatsoever?? I in no way am calling into question anyone’s competency here but accidents can happen. Love your stuff and if you have answered this before I’m sorry :)

@StrugglerZero 2 ай бұрын

Sorry again lol… SWP & Job Planning recertification got me on high alert. I’m sure you and everyone you work with are well trained & good at your jobs! Stay safe ❤

@araksaenthaweesuk1707 3 жыл бұрын

Please make sure that Power waterway design avoid erosion and sedimentation also.

@Physicsduck 3 жыл бұрын

I do that on every powerplant I build.