Pelton Wheel

[@davidcohen6791]

Hope someone can clear my confusion. How is the inlet velocity and inlet area == outlet velocity and area? the diameter changes (the outlet diameter is half of the original diameter)?? Please help

[@jamesy005]

Very informative, thanks for the video.

[@joaopedrorodolfo6583]

Thanks!

[@yashniranjane5026]

Thanks a lot . Saved my exams .

[@Shumayal]

I know this comment is on an old video but I would appreciate it if you can do the same analysis with velocity triangles for Francis and Kaplan turbine. Even steam if possible. Thanks

[@RickSellens]

I'll keep it in mind, but it's unlikely to happen unless I wind up teaching a course that covers that material. Thanks for the interest.

[@Shumayal]

+Rick Sellens Dear Sir, I find only Pelton video on your channel. May I ask why the only video on Pelton? It made me search your channel for Francis and Kaplan. I thought a course which covered Pelton would also cover the other types, or maybe you just didn't record it?

[@aswadjoshi3756]

Sir,Kindly help with nozzle design steps.I have 25mm (1") jet dia.I want to increase the velocity by drop in pressure.available head is 18m.Pl. suggest nozzle for the same.

[@RickSellens]

I'm not a control nozzle design expert, so I would be inclined to copy general configurations shown on the web. A gradually converging conical nozzle would be a good start if you don't need flow control.

[@maherdaibes9344]

thanks a lot sir

[@marlenelima9925]

thank you sir, from Ec.

[@RishabhSharma-rs2ez]

sir how did u use f = mu it is ma I am confused

[@RickSellens]

Units are consistent. F=ma you know. F = m_dot delta(u) is a change in momentum.

[@chrisxx3452]

Hi Mr. Sellens, Would you or someone be so kind to assist me, or point me in the right direction, in designing the right size Pelton Wheel (diameter), with the correct size spoons/buckets or an appropriate size Francis Turbine, whichever is best, and any info on where to purchase all / any of the components to either of these devices. Here is the environment:: I would like to use a Pelton Wheel or Francis Turbine (with belts & pulleys if need for more leverage), again whichever is best and affordable for my situation, to turn a twin piston water pump. The goal is to move water up a 430 foot hill into a storage tank. This pump is rated to move 10 gallons per minute, turning at 600 rpm with a psi ranging from 0 to 400 psi; it's a positive displacement pump, so any needed reduction in RPM will be equally sequential in output, for an example if the pump RPM was reduced to 300 RMP it will move 5 gallons of water/minute, and if it turns at 150 RPM it will move 2.5 gallons per minute, and so on. My hopes and desires, if possible, is to move 1.5 gallons per minute, or more, up this 430 foot hill to fill a water storage tank. Data: Total head/lift needed is 430 feet Desired volume of water at the above height - 1.5 gal / minute or more Available water source: Volume: Now only 11.5 gal per minute.........due to the severe drought in this area, this water volume is at least 1/2 to what it should be to likely closer to 1/3 - Basically the water volume at the source, in normally wet years, is around 33 gallons per min. Drop: 37 feet *One of my questions is if I/we design a Pelton Wheel to perform at 11.5 gal per minute, will it lose its efficiency when higher volumes of water returns and visa-a-versa, if it is designed for 33 gal/min will it loose its efficiency at lower water volumes Thanks, Sincerely Chris

[@RickSellens]

Chris P You should probably explore the concept of Specific Speed to tell you what general family of turbine designs you should be looking at, then consult manufacturers for high quality designs. Alternately, for a small system you could follow any of the homebrew videos to get a reasonable level of performance.

[@ahmed_thinkoutoflimit3275]

+Rick Sellens thanks sir ..... Very informative how can know V of the blade

[@nandhakumare2224]

thank u sir

[@enghanyramzy4999]

thanks dr

[@vrvishalraut4082]

thx sir

[@vedantpratik9352]

thank u sir

[@k.dineshs.kaliyaperumal6643]

thank u sir