
DIY Centrifugal Pump - How to make a pump from wood and optimise with CFD
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Date: 2023-11-17
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Comments and reviews: 29
Xeno
Can you make video on positive voltage vs negative voltage? How you can connect two 9 volts batteries for example in series and have +9 volts DC on positive terminal and -9 volts DC on negative terminal with middle terminal serving as common/virtual ground. What are the uses of negative voltage? Can you power a LED or 9 volts motor by connecting to -9 volts terminal and virtual ground terminal? Also since voltage is pressure, does negative voltage mean lower pressure and positive voltage mean higher pressure?
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Can you make video on positive voltage vs negative voltage? How you can connect two 9 volts batteries for example in series and have +9 volts DC on positive terminal and -9 volts DC on negative terminal with middle terminal serving as common/virtual ground. What are the uses of negative voltage? Can you power a LED or 9 volts motor by connecting to -9 volts terminal and virtual ground terminal? Also since voltage is pressure, does negative voltage mean lower pressure and positive voltage mean higher pressure?
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biglightball
This video is awesome! Event that it's sponsored and it's an ad - I would definitely watch more ads like that!
The amount of work you put in it is big, both constructing the pump and making this video. It was a real pleasure to watch it, especially the part where you described all the steps while showing them in short video shots. I watched that part twice - it was that good.
Greets from Bialystok, Poland!
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This video is awesome! Event that it's sponsored and it's an ad - I would definitely watch more ads like that!
The amount of work you put in it is big, both constructing the pump and making this video. It was a real pleasure to watch it, especially the part where you described all the steps while showing them in short video shots. I watched that part twice - it was that good.
Greets from Bialystok, Poland!
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Expression
Obviously you enjoy building these sorts of things, but perhaps a more economical way is just buy a water pump for an old chevy 350 engine. Hook up electric motor to the pulley.
The pumps can be had for like 15 dollars or whatever a junk yard might have.
What I'm slightly more interested in is how the cooling works.
Would there be an efficient way of making such a system work in a typical house?
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Obviously you enjoy building these sorts of things, but perhaps a more economical way is just buy a water pump for an old chevy 350 engine. Hook up electric motor to the pulley.
The pumps can be had for like 15 dollars or whatever a junk yard might have.
What I'm slightly more interested in is how the cooling works.
Would there be an efficient way of making such a system work in a typical house?
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sai
Hu bro, I saw your videos, Its very useful to understand all the major concepts, Am having one request to you, I need to know about the estimation of power for a certain equipment, For Eg. I want to make a solenoid actuator, But I don't know how much of coil I have to taken for 230v and also know to estimate the power, please make a video, It may be useful for lots of Students
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Hu bro, I saw your videos, Its very useful to understand all the major concepts, Am having one request to you, I need to know about the estimation of power for a certain equipment, For Eg. I want to make a solenoid actuator, But I don't know how much of coil I have to taken for 230v and also know to estimate the power, please make a video, It may be useful for lots of Students
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Robert
something something balance impeller
Also 12: 50 cavitation is when the dyanmic pressure is less than (flashing) then greater than (bubble collapse, micro water hammer) the vapor pressure of the liquid. In fact, in some rare cases, air can be injected to reduce the effects of cavitation because it keeps the vapors from collapsing.
Overall fantastic video!
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something something balance impeller
Also 12: 50 cavitation is when the dyanmic pressure is less than (flashing) then greater than (bubble collapse, micro water hammer) the vapor pressure of the liquid. In fact, in some rare cases, air can be injected to reduce the effects of cavitation because it keeps the vapors from collapsing.
Overall fantastic video!
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CMZ
12: 37 I may be wrong but i don't think that can be called cavitation, i don't think the design is efficient or powerful enough to producer such low pressure to make water boil, at the very least not enough to produce any damage to become a problem, they are just bubbles sucked in through gaps and air dragged by the aerated water.
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12: 37 I may be wrong but i don't think that can be called cavitation, i don't think the design is efficient or powerful enough to producer such low pressure to make water boil, at the very least not enough to produce any damage to become a problem, they are just bubbles sucked in through gaps and air dragged by the aerated water.
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Glen
I bet you learned a lot from your little experiment. Try running your system with your black sump full to the top increasing pressure on pump inlet. Your not getting real cavitation, but dissolved oxygen is coming out of solution and extra height may help give you more NPSH. Great video, keep them coming!
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I bet you learned a lot from your little experiment. Try running your system with your black sump full to the top increasing pressure on pump inlet. Your not getting real cavitation, but dissolved oxygen is coming out of solution and extra height may help give you more NPSH. Great video, keep them coming!
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sandeep
Great video sir, this is the information I was searching for many years. A good comparison between the straight, forward and backward curved blade pump. Where and why do we use the straight blade and forward-curved impellers if both are less efficient than the backward curved impeller?
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Great video sir, this is the information I was searching for many years. A good comparison between the straight, forward and backward curved blade pump. Where and why do we use the straight blade and forward-curved impellers if both are less efficient than the backward curved impeller?
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education
You totally skipped the inlet outlet conditions part in CFD setup. That is the most confusing part for even most experienced engineers to translate real world conditions into computational variables and making accurate assumption. Hope you'll cover it some day in any other video.
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You totally skipped the inlet outlet conditions part in CFD setup. That is the most confusing part for even most experienced engineers to translate real world conditions into computational variables and making accurate assumption. Hope you'll cover it some day in any other video.
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hakachukai
From the start of the video I had one question that never really got answered. How did you keep the bearings and the drive shaft from leaking? I see that you used sealed bearings, but I bet they still leak. Cool video! Thanks for showing us this cool tech!
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From the start of the video I had one question that never really got answered. How did you keep the bearings and the drive shaft from leaking? I see that you used sealed bearings, but I bet they still leak. Cool video! Thanks for showing us this cool tech!
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Flixer
Cavitation is something else than air bubbles. Cavitation occurs when the pressure goes below the vapor pressure of the liquid. The fluid then basically starts boiling creating small bubbles that collapse on impact. It's the cause of pitting.
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Cavitation is something else than air bubbles. Cavitation occurs when the pressure goes below the vapor pressure of the liquid. The fluid then basically starts boiling creating small bubbles that collapse on impact. It's the cause of pitting.
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Climate
All of your videos are really well made, i can imagine how much work it must be to finish only one video - i find this one particularly excellent because of combining the theory with building an application! Keep it up: -)
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All of your videos are really well made, i can imagine how much work it must be to finish only one video - i find this one particularly excellent because of combining the theory with building an application! Keep it up: -)
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Mark
What I would say is that you did the right thing by building a physical test model rather than simply rely on the software. Physical testing is an important sanity check on simulation.
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What I would say is that you did the right thing by building a physical test model rather than simply rely on the software. Physical testing is an important sanity check on simulation.
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Greg
Also how does the shape or profile of a bane affect flow (i. e. uniform versus tapered or airfoil shape. Of course you would have to machine the impeller to use non-uniform profiles
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Also how does the shape or profile of a bane affect flow (i. e. uniform versus tapered or airfoil shape. Of course you would have to machine the impeller to use non-uniform profiles
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BlackWilk
Hi I'm 14 and I was wondering if someone knows a good electrical engineering kit for beginners.
Thank you.
Oh, I forgot to tell you that I love your content keep it up!
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Hi I'm 14 and I was wondering if someone knows a good electrical engineering kit for beginners.
Thank you.
Oh, I forgot to tell you that I love your content keep it up!
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Johnny_Vega
Thank you mate. You have no idea how long I've been searching for a video like that: ) I'll send you some videos when I finish my pump design and 3D print it.
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Thank you mate. You have no idea how long I've been searching for a video like that: ) I'll send you some videos when I finish my pump design and 3D print it.
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Otto's
Looking at this I can see doing it on computer testing is NOT real world, as you found out real world is less efficient. So you have to adjust in the field.
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Looking at this I can see doing it on computer testing is NOT real world, as you found out real world is less efficient. So you have to adjust in the field.
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navazbeats
would be awesome if you could explain the relationship between differential equations, complex numbers and electrical circuits with real world examples
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would be awesome if you could explain the relationship between differential equations, complex numbers and electrical circuits with real world examples
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Michael
For converting water flow to electricity (water turbine, which impeller shape would work better? Or would a totally different design be necessary.
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For converting water flow to electricity (water turbine, which impeller shape would work better? Or would a totally different design be necessary.
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Deep
its very interesting project not because its a working model but because it shows everything that could go wrong which I think is really important!
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its very interesting project not because its a working model but because it shows everything that could go wrong which I think is really important!
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Joe
You need a vacuum gauge between the source of water and the pump and a pressure gauge between the pump and ball valve. Thanks for the vid.
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You need a vacuum gauge between the source of water and the pump and a pressure gauge between the pump and ball valve. Thanks for the vid.
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Expression
To make cooling more efficient if wager having it flow onto a screen to disperse water and limit the air that gets into the water.
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To make cooling more efficient if wager having it flow onto a screen to disperse water and limit the air that gets into the water.
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Eli
this is a closed-loop system, the water returns to it's source. an open system would drain the water away without refilling the reservoir
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this is a closed-loop system, the water returns to it's source. an open system would drain the water away without refilling the reservoir
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Luiz
Is the pump's design strong enough to pull water out of a 6 meters well? And if it is, will it last? Thanks for the ideia by the way
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Is the pump's design strong enough to pull water out of a 6 meters well? And if it is, will it last? Thanks for the ideia by the way
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Expression
It seems like if you combined the cooling with desalination for fresh water you could make the whole system more efficient.
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It seems like if you combined the cooling with desalination for fresh water you could make the whole system more efficient.
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Vladimir
Can you show us how to do this with AIR? I mean, it would be nice to make some DIY leaf sucking thing with shredder: )
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Can you show us how to do this with AIR? I mean, it would be nice to make some DIY leaf sucking thing with shredder: )
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AKG58
Finally someone is doing it right using science I want more follow ups on this with greater efficiency and other things.
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Finally someone is doing it right using science I want more follow ups on this with greater efficiency and other things.
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mobgma
get an air release valve, pressure transducer and a proper 3 phase VFD and motor (single phase in and 3 ph out) = win.
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get an air release valve, pressure transducer and a proper 3 phase VFD and motor (single phase in and 3 ph out) = win.
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Deep
forward blade is undesirable due to the fact that there are two flow rates for the same head developed
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forward blade is undesirable due to the fact that there are two flow rates for the same head developed
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