[Part 14] Kilowatt Microhydro Turbine - Spear Valve Testing
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- เผยแพร่เมื่อ 7 ก.พ. 2025
- Skip to 15:22 for the gravy.
I'm aware that some of the terminology that I'm using in the video isn't spot on, sorry.
Link to seller of this spear valve, he doesn't always have them: www.ebay.com/u...
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My dad loved your stuff. He passed away in November, but you were an inspiration to him. I started watching after he passed and it makes me feel closer to him. My personal hero and the man I looked up to more than anyone in this world looked up to you. Anyway, it might not mean much to you, but your videos mean more to me than I can convey in any amount of words. Keep it up, man.
I'm sorry to hear. My goal is to provide entertainment and education in a genuine manner!
This is getting exciting as you get closer to energy harvesting.
Thanks for the video.
Here for the ending, but I'm going to let the video run the full time to help with analytics. Good stuff Joe!
Hi Joe, At 19.45 this is a perfect example of what i was saying about having the intake as clean as possible, also if it helps i'm still messing with my setup so built the turbine box out of 20mm ply i did this just to make sure i got all the angle and adjustment where i wanted them before i make it from something that will last longer, what i noticed is the plywood box is very quiet when running not like ones i've seen made from steel, steel kind of vibrates quite loud as the wood kind of dampens the noise down, wood it also very cheap to make the box from and re-make and re-make till your happy with everything, i also set my jets on a small piece of perspex which has slotted holes so i can slide the jet left and right when it's running to allow me to hit the runner at the correct spot, when i'm finished experimenting my thought were to make the finished housing out of heavy perspex or ptfe sheet but not sure yet i may stick with the ply and use some kind of good waterproofing.
Take care
john
Apply a urethane resin to the wood. Smooth-On makes some really good ones. If you want something that's real thin so it'll soak into the wood, their 300Q is thin as water, has a 30 second pot life and cures in about a minute. Applying it through a static mixer nozzle would be a good idea for large surfaces. A dual tube peristaltic pump between the containers of A and B cans and the mixer nozzle would be great. If there's such a thing as a paint sprayer that can mix two liquids just outside the nozzle, that'd work to spray apply this resin.
@@greggv8 Thank you i'll look into that, to be honest i work with resin (polyurethane and polyester) and i never thought about using it on my wood box to waterproof it, great idea thanks again
john
I love your videos. Ever since the dam in your front yard.
I just can’t keep from thinking of the potential for comedy though. Nothing forced, but a very dry humor type of comedy.
You may be onto something Joe!
Keep the videos coming!
Ha ha. Dry humor when working with water. ;)
As always, Love seeing your progress. Cant wait to see how it turns out
WOW! thank god a reupload fixed what we missed! amazing! 😊
im impressed! 😊
Thanks joe! I got a kick out of the perfectly worst spot that your last vid cut out. That and your comment about "the thumbnail I will have used" made me think it was intentional for a second there.
Knowing full well what kind of pressure is behind that nozzle and still putting your hand in it. Engineering.
Hey, Im from Brazil, and a love your videos, and you inspired me to make my own dam, to generate electricity z thank you. Keep posting your videos.
You should know that your thumbnailworked. I saw this video last week when it was uploaded, and have since gone through and watched the series. Looking forward to seeing how this turns out. :)
Joe it’s funny to hear you talk about thrust as if you’re surprised. Momentum flux! Rho*v^2*A! Remember that velocity is squared so every bit of extra V will add a lot of flux. Great videos, can’t wait to see this one turn out.
I'm not surprised, it's more of a remark for viewers to appreciate what's going on.
yesssss i can now find out what happend
What Is Islam?
Islam is not just another religion.
It is the same message preached by Moses, Jesus and Abraham.
Islam literally means ‘submission to God’ and it teaches us to have a direct relationship with God.
It reminds us that since God created us, no one should be worshipped except God alone.
It also teaches that God is nothing like a human being or like anything that we can imagine.
The concept of God is summarized in the Quran as:
{ “Say, He is God, the One. God, the Absolute. He does not give birth, nor was He born, and there is nothing like Him.”} (Quran 112:1-4)
Becoming a Muslim is not turning your back to Jesus.
Rather it’s going back to the original teachings of Jesus and obeying him
Maybe some TH-cam-Machinist like This Old Tony can make a scaled down version of the spear valve to better fit your minimum flow. The quality of the jet would probably be better than the plastic parts as well.
Good video. I cant wait to see the next.
that was a lot more fun to watch than I thought :P
The best way I have found to get hose to forget the shape that it had on the spool is to pour very nearly boiling water into the hose, and then give it a little tiny pull to straighten it out, and then let the water cool down inside the tube.
i would like to ask you question below.
my house have 1 water pump connected to the water tank on 2st floor, i would like to build small hydro generator when water coming in the tank ( the pump machine run so many time a day because my home have a room for rent so a lot of people are using water in the Water Tank)
Love the "Good Bye"
That valve looks like an aerospike rocket engine.
I know this is very late, but the reason it looks so much like an aerospike nozzle is because they’re based on eachother. The flow of water is nearly the exact same as the exhaust gas in an aerospike rocket nozzle and that’s why it looks like one - because it basically is one, or should I say Hydrospike x)
Love your channel
We need a hydro-power system that works in a pond instead of a river or stream. I just discovered your next awesome project LOL
This would work just the same from a pond. He just wouldn't need a holding tank, just filtration.
@@@jesondag awesome thanks!! Getting about ready to need this for our power.
Joe could you provide the link to where you purchased the spear valve? Trying to find in but no luck. Thanks,Rich
Hey joe, just an idea on the water hammer. Why not hook up the valve to an arduino and have it slowly turn off the valve over a minute or two?
That pressure man!i like it,that's approximately 800watts,
Remember to mention that's people can support you on patreon.
On my sailboat I struggle with hoses like that. Your hot air gun worked good. I and going to remember that. Another solution is boiling water. But because the free end of the hose doesn’t bump the pan and spill hot water all over your hand and legs.
Also it is really hard to get that coiled shape out. Even when I have run hot hot water through a length of coiled hose and pulled the hose straight while it cools the tendency to coil will remain.
I want one of those valves. It looks like it is both high volume and high pressure. I always thought that was not possible. Cool valve.
And a question: off hand do you know the angles of the spear and the office?
Is your plan for a pelton cup runner or turgo or whatever? Just curious. Keep it up man!
I'm planning to run a turgo from Hartvigsen Hydro. 24 of his blue spoons seems like it should work with my generator, operating RPM will be about 4000 RPM. I'm concerned this will be excessive, what are your thoughts? I've purchased a Motenergy ME1603 that I plan on operating at 48v nominal (70v loaded, 140v unloaded as to not overvolt a 150v class charge controller.)
@@JoeMalovich Hi joe, 4000rpm is really quite high and it going to wear out your bearings very quickly. if you have not already designed your turbine PCD size i would look to make it quite big in order to reduce the rpm a bit if possible. Is the ME1603 even rated to do 4000 rpm? i have had them apart and the magnets are only glued on. my turbine runs at about 900rpm under load. If you cant make the turbine really wide to slow it down you might have to gear it down but that would be a shame because of the losses. I really think 4000rpm is going to put a lot of wear on things and stuff might star flying off 4000rpm = 66 rotations a second!
@@KrisHarbour Which model of generator did you use? I know 4,000 seems high that's why I'm asking. I don't have that part of it designed yet.
@@JoeMalovich I don't have experience with DC systems so can't really help here. Our AC 10KW runs at 1800 and we have a military genes that runs at 3600. Man is that thing loud. I imagine 4000rpm will wind away as well. Being so close to your bedroom window, I would highly recommend maxing out on sound insulation. Overkill is certainly called for. Maybe line the interior with sound deadening foam for a starter.
would adding a water ram add any pressure?
Hi Joe, i would like to buy Spear Valve but i don't know where to buy them same clip you uploaded, pls kindly share the link shop or can i DIY at home?
Isn't the spear nozzle what they use for some carburators?
Soak the end of the clear hose in boiling/really hot water. Works perfectly to soften it without damaging it. Just use gloves to handle.
Bernoulli would be proud of you
What's the head loss on the sand filter needed protect smooth surfaces from high velocity small particle erosion?
I kind of want to see what happens if you use that nozzle to pressure wash that breeze\cinder block or that tree stump.
I mean, could it cut through that block or stump if held close enough?
Have you tried taking apart a cheap shower head? They have a tiny laminar flow nozzel inside, that could possibly be used, maybe 3-4 of them, I know on standard pressure, they will cut skin!
If you have a die large enough you can cut itor if you heat up a metal pipe you can screw it on and cause it to reconfirm the threads
A nut driver will make using hose clamps so much safer... I've found that the Harbor Freight 4 in 1 screwdriver large end works on most hose clamps.
I have many nut drivers, I can never find them.
so is it possible to spray this above the water source into a holding pond?
TROGDOR!!! Lol the burninator.
It works like a Toroidal Aerospike rocket engine. Pretty neat.
Were you watching Tim Dodd's video too?
If the large size of the exit port is a problem for your low flow situation you could maybe find somebody who can 3d print a replica with a smaller orifice to suit your needs??
Could you dig trenches with that amount of water and pressure? Just curious.
Why do use a turbine housing ?
It only causes problems
On a hot day "innocently" start a water fight with your neighbor. lol
How does it work for leaf blowing. Lol. More like it makes a great Hydro excavator. Killer!!
Another channel I saw, Kris Harbour, actually is in the UK and used the exact same nozzle
Where do you think I got the idea?
Got access to a lathe or someone that does ?
Make a new grey endcap for your spear valve with a smaller hole that works the same way but closer towards the tip.
That is a possibility. I don't know if the tolerances will allow it, concentricity of the spear is pretty important and it wobbles a tiny bit right now.
@@JoeMalovich The built in flex allows the end cap to seal without being accurately (more expensively) made.
So you get to remake the centre as well :-( You can then add a straight section of guide ribs before the tip like solid arrow flighting pushing against the blue tube. Actually if there's straight shaft in straight tube just add centering guide ribs (deep spokes) that slide on one side or the other. Sliding section might need to be in the cap as it has the misalignment.
You need a higher precision all metal spear valve. That one was obviously off center.
Any researches about tesla turbine? It can work with any fluid including water.
Can you store your energy on a compressor?
is the length of the ejected stream linear to force in the turbine turning? I'm guessing its a triangle of nozzle/jet length and gallons per minute and workload
hello friend how are you .. I hope that good? can you help me? Where can I buy the nozzles. thank you
👍 This is because you Americans are the only country in the world that doesn't want to use the metric system and stick to the imperial measure with inches and feet!
Even the Chinsen deliver in the metric system and measure their rice grains in millimeters! 🤣
Greetings from Austria!
1 1/2 npt is 11.5 threads per inch, 1 1/2 bspp is (I think) 11 tpi also bspp is 55* thread form where npt is 60* (angle of the v in the thread). the valve your using is probably also referred to as a needle valve. a machine shop should be able to make a new smaller nose cone for that unit out of delrin to bring it down closer to your flow requirements.
Never put your hand in front of a water or air jet, depending on the pressure and the size of the jet you could lose your fingers. always use a wooden stick or ply to check. Also this looks more like the water cannon they use for crowd control.
Yeeesssss! The new one.
🤣🤣🤣
What name that mr.?
Can't you make a smaller spear valve yourself ?
like take a T joint, put a cap on both straight ends, smooth hole in one cap and a threaded hole + threaded rod with a point in the other hole ?
Would have like to see a test of flow rate at minimum acceptable flow (catch the water on a tarp, flowing into a bucket and a stopwatch?) I am worried that there will not be enough water (the conflict that keeps the story interesting?).
17:25 should be your T-shirt artwork
Can't wait to see that jet push a turbine.
I feel like the angle the water comes out makes it less efficient, it comes out at that angle and then comes together.
Sl4yerkid looks ok flow once it’s a good 1/3 open though
I feel like hes loosing some efficiency with that cone valve. It may have many pros but I can see that the way the water flows, each side smacks into itself in the middle, causing it to loose some energy. 19:05 is a good example
@@Clockpie5436 Yeah That's what I was trying to explain, but I lacked the words.
@@Clockpie5436 a concave arc to the point would help fix this at lower flows but as the valve open it comes into operating range.
jon spon probably would be a lot more efficient than a straight cone. There’s is a little more friction but it’s definitely better
Chances are the thread is a metric. Check with a thread gauge, metric and imperial
Please give me clear link of spear valve on ebay
heat guns burninating the countryside
Burninating the peasants
I still gave the last video a thumbs up but was like what the crap🤣
You don't want to put a parallel male in a tapered female!
Tapered male to female parallel will because your male is slightly smaller than the female and the taper gets tighter as it threads to close the gaps.
But a parallel male to taper female wont work since now the male parallel thread is larger than the female that tapers to a smaller diameter, the male part is now bigger than the female and even if it fits it wont seal right.
Not too different than a HVLP paint sprayer nozzle, probably too small for your application but thought I'd say it anyway.
How fast is that water flowing? My guess is "very."
Anyone else noticing the wierd line somewhere about 17:45 is most noticable
That's. Strange
It's an aerospike engine!
A valve like that is begging to be connected to a toothed belt and a stepper motor, operated by an MPPT (Maximum Power Point Tracker) controller. Monitor the power output and keep the valve adjusted to compensate for flow variance to extract the most power. Debris/clog detection could be implemented by watching for very sharp reductions in power then opening the valve fully. Wait to see if power output increases, if not, have it close the big ball valve and send an alert to your email.
I think you are confused, the MPPT controller and the Valve controller won't need to be connected. The MPPT controller will harness the water that's available out of the nozzles, The nozzle controller will harness the water available out of the spring. I'm collaborating with an electronics guy for this stuff.
bspt are 11 threads per inch, npt is 11.5 per inch . PVC adapters flexpvc.com/cart/agora.cgi?product=PVC-BSPT-Fittings. Also with hose barbs there are 1.660" (1 1/4" iron pipe size used for poly pipe) and 1.5" (1.5" hose actual size) confusing
Your neighbour is called Joe as well? lol
Yes, my neighbor is a machine shop, Joe is the owner.
Who's joe?
wooow....cool
I hear welding stainless steel is a little difficult. Probably not best to start with practicing. But I'm no welder, do some research. Google says to use a certain type of gas to make it easier.
dude... lol why would you put your hand on the jet once you got it set up the first time... not that any tiem is a good time to put your hand in front of the jet but wtf broski ?
I would say it is a pretty good leafblower if it didn't turn your yard into a puddle
Pigs would love it!
Trogdor!!!!!
15:22
So many scenes in this remind me of a pissing contest 😂
High pressure water is used as a cutting tool, so this plastic spear value will not last long! Stick to an all metal assembly if I was you.
Looks like a nozzle for air on a commercial plane
Then when the debris came out I thought your tukrish nossle had gone.
15:15 if you only got to the cliffhanger
Rado underrated comment
I just use a pipe cutter
❤️🎥.
Gotta be a running count of penstock
shit happens :p
You may want to see a urologist.
To much time wasted
His studdering at times is annoying.
He studders?
I try to speak without verbal fillers like umm or uhh so instead sometimes I just fill with silence (which I edit out). I do think my tongue is too big.
@@JoeMalovich you are doing a great job of it. And you are not studdering