- Видео 20
- Просмотров 120 562
Sergio Maldonado
Добавлен 16 апр 2019
Floating water wheel for off grid community in Peru
At Southampton University, Engineering students supervised by Dr Gerald Muller developed a floating waterwheel for providing electricity to a remote (off-grid) community in Peru
Просмотров: 4 206
Видео
Design of low-head hydropower converter for rural Pakistan
Просмотров 10 тыс.2 года назад
At Southampton University, Engineering students supervised by Dr Gerald Muller developed a waterwheel for ultra-low head differences, for applications in rural Pakistan.
Bubble formation by drop collision
Просмотров 3493 года назад
Slow motion footage (200 fps) of a bubble's formation due to the collision of water drop in still water
Ultra low-head hydropower in irrigation canals for Pakistan
Просмотров 41 тыс.4 года назад
University of Southampton Civil Engineering students, supervised by Dr Gerald Muller, have designed a water wheel to be used for electricity generation in the irrigation canals of Pakistan.
Human powered shredding mill for rice straw
Просмотров 2764 года назад
Engineering students at Southampton University designed and constructed a human-powered shredding mill for rice straw. The rice straw has to be shredded for biodigestion (for otherwise it is just burnt, polluting the air), but it is quite a hard material so it needs some power source for shredding. The goal was to use a renewable power source and robust technology for use in remote locations. S...
Design and construction of a water wheel for supercritical flow
Просмотров 11 тыс.4 года назад
At Southampton University, Civil Engineering students supervised by Dr Gerald Muller have designed and constructed a water wheel specifically aimed at extracting energy from supercritical flows (in irrigation canals).
Design of an ultra-low head hydropower system for water purification and saving irrigation
Просмотров 16 тыс.4 года назад
At Southampton University, Civil Engineering students supervised by Dr Gerald Muller developed a very simple waterwheel for ultra-low head differences from 0.10 m onwards. More info at hydro.soton.ac.uk/students/group-design/
Bernoulli's Equation: Part 1
Просмотров 2255 лет назад
Tutorial video by Tom Martin Part 1 introduces and explains the principle of conservation of energy in a rigid body and then demonstrates how the behavior of energy in a fluid differs from this. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado School of Enginee...
Bernoulli's Equation: Part 2
Просмотров 1425 лет назад
Tutorial Video by Tom Martin Part 2 explains derivation of Bernoulli's equation from equations for Potential and Kinetic energy. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado School of Engineering, University of Southampton
Bernoulli's Equation: Part 3
Просмотров 1495 лет назад
3 Worked Examples to try yourself: hydro.soton.ac.uk/wp-content/uploads/sites/297/2019/04/worked-example-problems.pdf Tutorial Video by Tom Martin Part 3 goes through a worked example using Bernoulli's equation. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado ...
Bernoulli's Equation: Part 4
Просмотров 1795 лет назад
Tutorial Video by Tom Martin Part 4 uses experimental apparatus to demonstrate Bernoulli's equation and introduce some of it's limitations in this form. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado School of Engineering, University of Southampton
Pipe Flow: Part 1
Просмотров 1265 лет назад
Tutorial Video by Tom Part 1 explains frictional head losses in pipes and the Darcy Weisbach equation. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado School of Engineering, University of Southampton
Pipe Flow: Part 2
Просмотров 1225 лет назад
Tutorial Video by Tom Martin Part 2 explains how to calculate Reynolds number and relative roughness and how to obtain Darcy Friction factor from Moody diagram. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado School of Engineering, University of Southampton
Pipe Flow: Part 3
Просмотров 675 лет назад
Tutorial Video by Tom Martin Part 3 explains local head losses in pipes. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students. Supervisor: Dr Sergio Maldonado School of Engineering, University of Southampton
Pipe Flow: Part 4
Просмотров 865 лет назад
Try and calculate the head loss yourself with a different discharge rate: hydro.soton.ac.uk/wp-content/uploads/sites/297/2019/04/28s-discharge-question.pdf Tutorial Video by Tom Martin Part 4 goes through worked example of head loss calculation. This video may not follow a rigorous academic derivation of the concepts shown, but rather prioritizes clarity. It is a video by a student for students...
Simple Derivation of the Navier-Stokes Equations (Part 2/2)
Просмотров 6 тыс.5 лет назад
Simple Derivation of the Navier-Stokes Equations (Part 2/2)
Intuitively Understand the Navier-Stokes Equations (Part 1/2)
Просмотров 12 тыс.5 лет назад
Intuitively Understand the Navier-Stokes Equations (Part 1/2)
Hi! Congrats for this uaefull project! I have a queations. Why the flow inlet was chosen to be in the lower (ccw rotation) and not on top (cw rotation)? Thanks!
Why we are not using this structure in Pakistan. Is it work for small canals ?
Great! 😊
do you have any ideas for how to make a DIY wave maker?
Did it work?
We are manufacturing these turbines in pakistan so u can contact us
Very nice! Thanks
Good project thank you for posting
Hi, I'm wondering if the technical specs of this design are available for a DIY installation? I'd be curious to know more and work with the team on a pilot implementation of this turbine.
We are manufacturing these turbines in pakistan. U can contact us
👍👍👍👍👍👍
It's the best explaination navier stokes law in youtube
Good up.up
Glad I found this really helpful. Catched the grand picture but missed the view when it went to the Kronecker delta part. Then, what is the different between (i,j) and k suffix you mentioned?
thank God, he delivered you to explain this concept in simplest and understandable term at least for me. Keep up the good work! :D
👍💐
Thank you for sharing this project Sergio. Would you please recommend some literature about it? I am planning to build a small water wheel.
👍💐
مرحباً جميعاً،،من فضلكم ما المعادله او (القانون الحسابي )الذي يمكنني من حساب القوه الناتجه عن تدفق 250غالون ماء بالدقيقه من ارتفاع 5اقدام ،،،كم حصان قوه تعادل،،،؟ 2)اذا كان هدفي رفع بعض الماء لمستوى اعلى من مستوى جريانها الطبيعي ،،،مثلاً ،،هل القوه الناتجه عن تدفق 250غالون من ارتفاع 5اقدام كافيه لرفع 100غالون لارتفاع 10 اقدام ،،،؟ وشكراً جزيلاً
Thanks for experiment.
Very useful mate
but why tanh (x)?
aluminium rim on aluminium roller expected to take several KW on point contact in wet conditions AND not corrode or wear? lol. trains run on hardfaced steel tracks for a reason... ok, replace that with gears or at least rubber rollers... that being said, the more head, the better. i did like the shot at 1:53. shows the water coming (almost) to a complete stop... still a lot of turbulence though... feed in from the side and have the buckets at 90 degrees the other way...
great video
Good work. One minor suggestion. I am currently involved in low head projects in Pakistan and have surveyed Peshawar. There are no 2m head sites which can produce 9kW. But there are many in nearby areas like Charsadda, Mardan. We are using Kaplan turbines for these low head schemes
is this available to purchase? (UK)
quite informative
Helped me so much thanks 👍
Great ⚘⚘
What happens during a flood of the river? With large dynamic forces, does it need to be taken out?
Hi I'm Attique from Pakistan I'm working on hydro power I design simple turbine rotate with canal water on zero head A new innovation
Incroyable, avec le matériel que vous avez, vous reproduisez une simple roue de moulin , pas terrible votre imagination ! Inovez , inventé des améliorations , par exemple, le même système de roue flottante long de 20 ou 30 mètre et les pales plonge dans le fleuve tel une chenille de char en plus elle serai articulé et en remontant elle se poserait à plat , ou encore elle pourait rester fixe . Mai au final le résultat serait phénoménal la puissance serait incroyable et on pouvait alimenté un villages voir plus selon la longueur du moulin horizontal si vous voulez en faire un de 50 mètre de long , c est possible aussi ! L énergie ne serai plus un problème sur les fleuves bien au contraire , bonne journée à vous
$10,000 water wheel producing 5 cents per year power production ?
Fascinating- More details, por favor
why you conclude that curved blades are 30 % more efficient and then use flat ones 0o
Since the wheel seems to use the energy to pump and pressurize some of the water in the race to feed a drip system: How does this compare, efficiency wise, with building a hydraulic ram and anchoring it and it's ram pipe in the race? Would such a system produce equivalent flow and pressure? Hydraulic rams are simple - two moving parts besides the water and air - last for decades, and are easily constructed from plumbing parts (or miscelaneous junk). Even if a ram matches or beats it, such a wheel would do a great job driving a generator. Also: Love the half-cylinder blades: An undershot water-wheel equivalent to a pelton/turgo turbine!
Very good
Irrigation canals only flow for part of the year.
yes, bt that depends. The canals in PK flow for 11 months, some canals in France only for five
In PK they flow for 11 months, in other coutries sometimes only 4. That needs to be taken into account, But rmemeber, the flow volume in the canals does not vary as much as the flow in rofers by a large factor. so pwoer produciton is possible for the time when the cnal flows. Then it is a matter of how much the installation costs, and how much power is produced.
Ummm ... so you design something to help people who really live basic lives ... and then measure it in "phones charged per day"?
Don't really see the advantage of 4 little wheels instead of one big shaft seems a bit inefficient.
the resaons are the costs for the gearbox., which usually amounts to 35-40% of the total cost f the installation. Even a 10 kW gearbox with the approrpriste torque, gear ratio and lifespan costs around 15k Euros, so the small wheels give a big costa dvantage
How will contact with you
Thank u sir, but our politions will not do anything good for country.
Learn organise yourself: educate, look for effective actions and thinking. Be creative: Adopt, adapt, improve.
Speak in French please
The friction losts will make it a poor design. You must use full drop of elevation. With a direct drive to a DC generator. To a solid state converter to ac. Low flow plus small elevation equals low output. Paddle wheel has never worked. Think vertical not horizontal shaft.
The friction loss factor in a railway wheel is 0.01. For our case, with a weight of the wheel of 1500 kg / 15 kN and a tangential wheel speed of 3 m/s the loss is 0.45 kW for a power out of 9 kW. I think that friction losses are acceptable when compared with gearbox costs.
@@geraldmueller1 when you say 9kw is that per day?
I don't think friction rollers will stand the test of time in the wild 😜
Hmmm, I’m thinking you are right. I was hoping he was going to say direct drive magnets built into the wheel but thinking he was going to say V belt drives. Friction drive on a wet surface extracting 9kW from 90rpm….
@@geraldmueller1 you are rooting for a 20$ vs a 50$ solution. And the generator is way more expensive anyway... The overall cost is not going up by that much however. 3 years at best vs 10 years no problem.... If done right.
9.4kw to power 29 average Pakistanis home!!
Bonjour , je ne parle pas et ne comprends pas l allemand, mai votre vidéo si c est bien le ca veut démontré que vous voulez faire tourné une génératrice, puis reu injecté l eau du bas dans le bassin du haut pour produire du courant et la faire tourné en boucle et avec un minimum d énergie ! . Bref vous vous rapprocher du mouvement à répétition, pour ne pas dire perpétuel. Est ce le but recherché ? Car j ai une idée phénoménal à ce sujet et c est comme si d un moulin on y met un turbos ou pire un compresseur , à plus bonne continuation
You are What'sapp No
Beautiful! Great job. Thank you!
Please increase your audio volume to a normal level