I really appreciate your videos man! I’m an HVAC service technician and I can safely say I feel more comfortable working on equipment after watching your videos. Thank you!
Not always. Plenty of pumps are used in agriculture (irrigation, waste water discharge, spraying etc.) and many of them are powered by engines, usually a diesel engine for the bigger pumps.
@the engineering minset ....best teaching in each and ever video great keep it up....pls upolad some calculation about hvac..like heat load .....then duct designing in simple way pls....
Great descriptions. For the Impeller, and the inside of the "Volute" I would go for a material that does not react chemically to water. Instead of Iron I would use copper . Maybe even consider a bladeless impeller. For I know that Kaplan turbines are destroyed on a micro level by micro turbulence . And need maintenance every 5 - 10 years .
Hello from Brasil, guys! I translated this video into Portuguese. I need your approval to share it with Portuguese subtitles. Go to TH-cam and do it, please!
At 2:42 you say that the change in diameter increases mass flow rate. From my knowledge, mass flow rate and volumetric flow rate are proportional to each other and they are constant. Volumetric flow rate is equal to the velocity of the fluid multiplied by the cross sectional area of the pipe and since it is constant, an increase in diameter should only decrease the velocity of the fluid. Could anyone explain how and why the mass flow rate increase?
Mass flow rate will remain the same. For a given pump impeller design, volute design, RPM, etc.. volumetric flow rate (the amount of liquid the pump can handle per unit time) will remain constant. As you state above, the increase in the volute diameter (which is specifically designed to follow Bernoulli's theorem) will only decrease the velocity of the fluid which in turn boosts the pressure of the fluid Since Q=A*V, the increase in cross sectional area A is balanced out by the decrease in velocity V hence resulting into constant Q.
Just a super cool topic thanks...can anyone explain what considerations need to be known to determine the best amount of clearance to have between the major outside diameter of an shielded impeller and the valute housing?...I would guess as little as possible maybe ideally only a few thousandths of an inch or enough to handle wear and run-out ...but something about past lectures in fluid Dynamics makes me think there may be more to it... Surely when moving screened solid waste...maybe when moving clear water also?
Hi Ur video is amazing i have learnt a lot n ty xo much. However I have a problem with my water pump motor where I have to fill the water every time I need to pump out Da water. So can u pliz help me with this problem .? I will be grateful if you can give some guidelines to solve my problem
I have a kirloskar pump in my house that still works after damn 38 years!! we replaced it hoping new motors will be more efficient..it still works and never had damage except capacitor replacement
I've always wondered how they keep the space between the shaft and the housing sealed from water leaks? There has to be some kind of space between moving surfaces or else movement couldn't occur right?
Centrifugal vacuum pumps have a very specific design, much different than what is shown here. They have a water ring and allow air to mix into the water and then discharge the air through the center of the impeller. Cavitation is not a concern as long as you run it as designed. Most vacuum pumps are positive displacement, though there are applications that are better suited for large centrifugal vacuum pumps. They are much more complicated and require support systems, such as large coolers to run.
What are the pushing limits? For example, could a pump like that hold a column of water above it of 3 storeys, 10 storeys? Before it couldnt push the weight anymore. This is an interesting part of the physics I am curious about
Depends on the pump. In engineering what you're talking about is known as head and is dimensionally a length. More powerful pumps can give you more head or a higher flow rate
When a fixed speed pump is turned on, is the flow rate produced simply a reflection of external resistance? Does additional circuit resistance slow the pump rotation?
The vanes accelerate the water in a circle, but the water molecules are not tethered to the rotating axis like the vanes are, the force imparted from the vane is thereforce only normal to the vane (plus a tiny amount of friction toward the center), so water's own inertia will keep it going mostly normal to the face of the vane. This causes the water to push up against the volute, having a backwards curve makes the normal closer to the volute and also probably helps reduce flow separation at the tip of the vane. At least, this is my postulation.
As soon as it leaves the vanes of the impeller it is in the volute. As it goes around, there is a piece of the casing called the cutwater that diverts the now pressurized fluid out of the volute.
Im looking for the formula used to figure out the GPM output off a pump, that I only know the rpm, impeller size and pump inlet/outlet ... so example would be a 3x3 x14 with a 1750 rpm motor and a 11" impeller installed.... thanks
⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕
PayPal: www.paypal.me/TheEngineerinMindset
😆. Helpful but your voice is comparatively low.
As a noob who just wanted to know what those pumps do I must say its quite simple at the core but yet so beautifully executed.
You appreciate the elegance of the working principle; Some processes can give such a feeling indeed.
I've taken a class on turbomachinery, but this has explained it to me much better than I've ever seen before. Thank you
Yes this so simple yet so well explained
Yup
everythink is simple when you know how, but it took few thousand years to get to know how.
I read that as turbomancy and I thought you were doing water magic there for a second
I really appreciate your videos man! I’m an HVAC service technician and I can safely say I feel more comfortable working on equipment after watching your videos. Thank you!
Festivejelly there’s 100000 different systems and components in the HVAC field.. you can’t and won’t know everything. Shouldn’t you know this already?
Thanks, I can say as an Electric Motor Technician this has really helped me, good work!
...This explanation is really clear and detailed. This is one of the best teaching I have ever been across.
This is the best video of all I watched that explains the centrifugal pump in a great way
One of the best pump videos I’ve ever seen 🤩
As a new Pipefitter,Suction/inlet;Discharge/outlet cleared up something that few could clarify to me.Helps out very much.Thanks!
Every video you made is absolutely incredible. Keep up your wonderful work!
Wonderfully clear. Thank you!
Brilliant
Well done, simple to understand and well presented.
Very educational and very informative.
Gratitude to the engineer who designed the pump... 🙏🏻
Great video, very clear and informative
Cool video the pump case where the impeller is located it reminds me so much of a turbo charger used on trucks and cars👍👍
The concept fit really nice
This channel is the best
So essentially, conservation of momentum impels fluid up a pump's casing.
Thank you so much for your sharing knowledge.
Wonderful Explanation.
Thank You.
🌹🙏🌹
Hey man, nicely explained..Thanks
A pump is a combination of an electric device and a mechanical one. Thank you for educating me.
Not always. Plenty of pumps are used in agriculture (irrigation, waste water discharge, spraying etc.) and many of them are powered by engines, usually a diesel engine for the bigger pumps.
Can also be hydraulically driven, gas engine, diesel engine. Close coupled, belt driven or standard couplings.
Thanks m8, love u from Malaysia
thank for uploading this video very helpful video
Nice clear video, thanks. Works really well with the examples you gave as well.
Very good video, thank you so much!
Best explanation video ever!!
I'm happy I watched this video, i learnt about "cavitation"
Subscribed 😉👍
U make me learn Bro.... Thank u very much ❣️
Excellent info..
Thanks for sharing. 😉👌🏼
Thank you so much for the explanation!
Very informative. I do not know as much about pump systems as id like
Please watch our newer video on centrifugal pumps, much better detail
nicely explained...thanks
Thanks for the explanation.. Gud 1
Super useful! Thank you for the video
Superb and easy explaination👍🏻
very very infromative thanks so much
The new version is way better th-cam.com/video/XpcCUtYzwy0/w-d-xo.html
@@EngineeringMindset Watched , Great effort
the video is such resourceful....keep up
thanks man, this was a simple, concise and clear explanation of pumps operation
good explanation bro
Loved it so much. Thank you for your lucid explanation.
Dear Brother,
Thank you very much for your nice video.
With lots of love and regards,
Jayantàda,
13/12/2021
Thank you for your video
Amazing video. Thank you!
very helpful thank you very much
@the engineering minset ....best teaching in each and ever video great keep it up....pls upolad some calculation about hvac..like heat load .....then duct designing in simple way pls....
Great idea I'm in college for hvac and having trouble in calculating these loads. Hope he does in the near future!
I can't sleep cause I've been thinking about this...now I can sleep well
Great descriptions. For the Impeller, and the inside of the "Volute" I would go for a material that does not react chemically to water. Instead of Iron I would use copper . Maybe even consider a bladeless impeller. For I know that Kaplan turbines are destroyed on a micro level by micro turbulence . And need maintenance every 5 - 10 years .
amazing vidoe, thank you, a suggestion, it would be great if you could talk louder and with a little more energy
Please watch the newer version, much better information
subscribed. great explanation
Thanks a lot, i work with theese kinds of pumps everyday but my knowledge of them is limited! Thanks again for this video!
Please see our newer version of this video, so much better
OMG This is Best!!!
Excellent...Thanks alot...
Thank you, we have a newer and much better version of this video here: th-cam.com/video/XpcCUtYzwy0/w-d-xo.html
very very very gooood
Hello. Did you upload a 2speed motor? Pls can I have a link🙏🏿🙏🏿
Can you do videos on turbine pumps and how they work? I cant seam to comprehend the difference from centrifugal pumps in my head.
I'd give you 1000 thumbs up if I had that many thumbs.....great video, excellent examples and detail with the pump.
Any even number thumbs are the same as no thumbs.
Thanks 🙏
Hello from Brasil, guys! I translated this video into Portuguese. I need your approval to share it with Portuguese subtitles. Go to TH-cam and do it, please!
Hey Faz, thank you. It's been approved 👌
@@EngineeringMindset You are great!!!!
Looks simple
2:12 yes, this is how to make a friction water heater. Put oil in a closed in/outlet compressor and submerge the water for heat your house
Nice but do upload a video on a similar pump which are commonly used in house like, to pump water out of lakes or from Lake to house in 3D 🤗👍
no dislikes after 3.5k views this shows how good your videos are.
My recommended videos always surprise me
Great vid thanks! Is that blade shape the most efficient way to push all fluids or just water-like ones?
liquid shuld be thin....
Done watching sir
Thanks for sharing
At 2:42 you say that the change in diameter increases mass flow rate. From my knowledge, mass flow rate and volumetric flow rate are proportional to each other and they are constant. Volumetric flow rate is equal to the velocity of the fluid multiplied by the cross sectional area of the pipe and since it is constant, an increase in diameter should only decrease the velocity of the fluid. Could anyone explain how and why the mass flow rate increase?
Mass flow rate will remain the same. For a given pump impeller design, volute design, RPM, etc.. volumetric flow rate (the amount of liquid the pump can handle per unit time) will remain constant. As you state above, the increase in the volute diameter (which is specifically designed to follow Bernoulli's theorem) will only decrease the velocity of the fluid which in turn boosts the pressure of the fluid Since Q=A*V, the increase in cross sectional area A is balanced out by the decrease in velocity V hence resulting into constant Q.
graet explanation sir
Make a animation video of hydropneumatic pump working and it's parts
Sir plz make video on Mechanical seal and gland..
Good video
Just a super cool topic thanks...can anyone explain what considerations need to be known to determine the best amount of clearance to have between the major outside diameter of an shielded impeller and the valute housing?...I would guess as little as possible maybe ideally only a few thousandths of an inch or enough to handle wear and run-out ...but something about past lectures in fluid Dynamics makes me think there may be more to it... Surely when moving screened solid waste...maybe when moving clear water also?
1:10 GREAT!!!!
I learnt something new like always. Thanks for sharing
Hi Ur video is amazing i have learnt a lot n ty xo much. However I have a problem with my water pump motor where I have to fill the water every time I need to pump out Da water. So can u pliz help me with this problem .? I will be grateful if you can give some guidelines to solve my problem
I have a kirloskar pump in my house that still works after damn 38 years!! we replaced it hoping new motors will be more efficient..it still works and never had damage except capacitor replacement
I lovw this channel
Thank you
I don't usually comment on videos and if I do, that video must be damn good. Great work, fella!
I've always wondered how they keep the space between the shaft and the housing sealed from water leaks? There has to be some kind of space between moving surfaces or else movement couldn't occur right?
great video, how I can avoid cavitation in a centrifugal pump that generates an air vacuum ?
gonzalo moreno andonaegui 2 ways, give it air or prime it depends on the pipe flow
Centrifugal vacuum pumps have a very specific design, much different than what is shown here. They have a water ring and allow air to mix into the water and then discharge the air through the center of the impeller. Cavitation is not a concern as long as you run it as designed. Most vacuum pumps are positive displacement, though there are applications that are better suited for large centrifugal vacuum pumps. They are much more complicated and require support systems, such as large coolers to run.
What are the pushing limits? For example, could a pump like that hold a column of water above it of 3 storeys, 10 storeys? Before it couldnt push the weight anymore. This is an interesting part of the physics I am curious about
Depends on the pump. In engineering what you're talking about is known as head and is dimensionally a length. More powerful pumps can give you more head or a higher flow rate
Hi pls upload how submerge pump works..
When a fixed speed pump is turned on, is the flow rate produced simply a reflection of external resistance? Does additional circuit resistance slow the pump rotation?
So is this is used for some boats to create thrust for the boat as water enters the outlet.. If outlet was directed horizontally of course
Kindly can you explain the types of pumps
The vanes accelerate the water in a circle, but the water molecules are not tethered to the rotating axis like the vanes are, the force imparted from the vane is thereforce only normal to the vane (plus a tiny amount of friction toward the center), so water's own inertia will keep it going mostly normal to the face of the vane. This causes the water to push up against the volute, having a backwards curve makes the normal closer to the volute and also probably helps reduce flow separation at the tip of the vane. At least, this is my postulation.
I want to know where exactly the fluid enters into volute from impeller.
As soon as it leaves the vanes of the impeller it is in the volute. As it goes around, there is a piece of the casing called the cutwater that diverts the now pressurized fluid out of the volute.
nice one
Thank you sir, Sir pls tell me that can we use to pump sand from river using centrifugal pumps. Pls reply
Can you please. Explain about train turning point deeply
Thanks
Im looking for the formula used to figure out the GPM output off a pump, that I only know the rpm, impeller size and pump inlet/outlet ... so example would be a 3x3 x14 with a 1750 rpm motor and a 11" impeller installed.... thanks
reference for my study
You should do a video on rotary screw compressor