Search found 59 matches

by Generator
Nov 28 2021 2:44am
Forum: Alternative Energy
Topic: Wind turbine at 1 m/s
Replies: 3
Views: 308

Wind turbine at 1 m/s

https://flowerturbines.com/ https://youtu.be/IivHyVao7os Delivers power at 1.2 m/s They have raised more than $7 million till date. Just wondering, what are your thoughts? Earlier I shared Ducted wind turbine video from Winergy https://youtu.be/fLXyD3haLRM, which claimed they produce power at 1 m/s ...
by Generator
Oct 07 2021 2:11am
Forum: Alternative Energy
Topic: World's most efficient wind turbine?
Replies: 27
Views: 816

Re: World's most efficient wind turbine?

Ducted does capture the air flow and increase the velocity. Many draw backs, size and tracking the wind direction. Not cheap. Surely, they aren't cheap but they can produce more energy at lower wind speeds, which in terms of output are better than not getting any energy at all. The key is to get po...
by Generator
Oct 07 2021 2:09am
Forum: Alternative Energy
Topic: World's most efficient wind turbine?
Replies: 27
Views: 816

Re: World's most efficient wind turbine?

Chalo wrote:
Oct 03 2021 11:24pm
Extraordinary claims require extraordinary proof. Put up or shut up. This sector is overrun with bullshit artists already.
In video, OP shows results, are those fake?
by Generator
Oct 07 2021 2:08am
Forum: Alternative Energy
Topic: Contra Rotating Diffuser and Shrouded Wind Turbine Design
Replies: 2
Views: 156

Re: Contra Rotating Diffuser and Shrouded Wind Turbine Design

I was hoping for comments from people, who have actually built real world windmills and have experience / understands windmills & engineering behind it. OP have shown results with prototype and I don't think it is virtual.
by Generator
Feb 02 2021 3:19am
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Congratulations, you have invented riprap! I found one such RipRap's picture and there are many in existence built by some real Civil engineering firms. See this pic and tell them they are stupid and it doesn't work and laugh at them. https://i2.wp.com/dryfabflood.com/wp-content/uploads/2019/11/IBS...
by Generator
Jan 25 2021 8:21pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Those are examples of concrete walls backed by earth. I think there is some misunderstanding in our discussion. Let me try another way. In a flowing river water, If I insert a Steel Pole of 12 inch wide (EYE BEAM) about 12 ft deep and leave 8 ft on top, would that Pole bend because of flowing water...
by Generator
Jan 22 2021 4:33pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Anyway to get picture of this structure? May be people who don't believe will have some sort of proof of it. The sand and rock just help to reduce the erosion but they don't support the piles. I think it is cheaper to build if we consider the amount of material transported on the site from far than ...
by Generator
Jan 20 2021 1:17am
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Your conclusion is based on existing knowledge you have. But let me tell you how Air, Liquid and Solids work differently. Throw 100 ton Solid block on electric Pole. It will act exactly according to your theory and you are right. If the pole can't withstand against the force exerted by that solid ob...
by Generator
Jan 16 2021 11:31am
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

MJSfoto1956 wrote:
Jan 15 2021 5:19pm
I think something like this (Energy to go: the world’s smallest hydropower plant | Eco-at-Africa) is more interesting to me: https://www.youtube.com/watch?v=iNuZaaJZd3w
This is good for micro scale generation but needs always flowing water. Very Good for people who live near it.
by Generator
Jan 16 2021 11:30am
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

If what you claim is true, then you could divide ANY wall, dam, berm or levee into tiny sections and it would become much, much stronger and easier to build to withstand the same force. Thirty seconds of experimentation proves this false. The video claims it and that's what is mentioned in the vide...
by Generator
Jan 14 2021 6:32pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

"If you have a wall X meters long, and it will have to withstand Y height of water, the amount of force each section of wall has to withstand is exactly the same when summed over the entire wall." ONLY If it is continuous wall, without sections. When the wall is divided into sections, this...
by Generator
Jan 14 2021 2:54pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

They mention it as portable and costs less than existing methods. Imagine the transportation cost of transferring the gravel to build the lagoon vs using pre fabricated piles, which are 100 times smaller in volume and weight. Pile walls can work. They are still effective around the Santa Monica Pier...
by Generator
Jan 14 2021 2:49pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Well, here is another experiment. Place a pressure measuring device in a tank on side wall at the bottom. Measure the pressure or force at that point. Pressure is constant all across the wall in that horizontal line. Let's say pressure you measure was 1000 pascal. So lets say the wall is 100 unit lo...
by Generator
Jan 14 2021 12:50pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Thames wall / implementation proves the same thing mentioned in the video. Check the actual thickness of the moving barrier at the bottom, it is very very thin, that means you can have thin member all the way up and it will still hold the water e.g. think of vertical column or panel or sluice gate c...
by Generator
Jan 13 2021 8:42pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

No, I'm not Civil engineer, but I know Engineers are those people, who can accurately learn and repeat the things invented by non-engineers. Sometimes they are unable to think outside the box, because that was not taught to them while getting that degree. So I'd like to know what is the issue or gap...
by Generator
Jan 13 2021 4:33pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

That design don't need that thick wall. That's the principle of design. Divide and Conquer kind of philosophy. If it is continuous wall, then your statement is valid. If you partition wall, the forces are not propagated along its length, that's the point of that design. You see a unit area of water ...
by Generator
Jan 13 2021 10:52am
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Re: Generating Power 24/7 by using Tides

Can't that pile wall be designed thick enough to withstand against the load?
by Generator
Jan 05 2021 2:39pm
Forum: Alternative Energy
Topic: Generating Power 24/7 by using Tides
Replies: 36
Views: 1862

Generating Power 24/7 by using Tides

Would love to know your expert opinions about this proposed power generation technique as Tidal power plants are already successful in some countries.

https://www.youtube.com/watch?v=0dcGU7eBcTw
by Generator
Jun 17 2018 4:18pm
Forum: E-Vehicles General Discussion
Topic: World's most efficient and aerodynamic car
Replies: 9
Views: 1554

Re: World's most efficient and aerodynamic car

Simulations may well show more efficiency, depending on what the simulator is ignoring. (All simulators use shortcuts to speed execution time; one method is to not calculate certain parasitics if they are not deemed to be important.) Is there a way we can simulate it easily? Or you have the ability...
by Generator
Jun 15 2018 12:10pm
Forum: E-Vehicles General Discussion
Topic: World's most efficient and aerodynamic car
Replies: 9
Views: 1554

Re: World's most efficient and aerodynamic car

Anybody have more insights about this car? Agree with the other poster; it's a joke. Any duct is high drag both due to interference of compression waves and greatly increased surface area. Well they backed high efficiency claim based on simulation results, which is confusing to me. Here is another ...
by Generator
Jun 15 2018 8:28am
Forum: E-Vehicles General Discussion
Topic: World's most efficient and aerodynamic car
Replies: 9
Views: 1554

Re: World's most efficient and aerodynamic car

I actually see more cargo space than what other cars have and the cabin space is adjustable too, so we still get same cabin space, if required. But my point of discussion is about efficiency and not the size as if you see Smart Car from https://www.smartusa.com only cramps 2 people in it and still h...
by Generator
Jun 14 2018 10:07pm
Forum: E-Vehicles General Discussion
Topic: World's most efficient and aerodynamic car
Replies: 9
Views: 1554

World's most efficient and aerodynamic car

That's what the company is claiming. Does that mean they are better than Tesla, BYD, Faraday Future, Lucid Motors, Byton, BMW, Fisker, Mercedes, Nissan, Toyota and all other companies? I wonder how much efficiency you can improve, if you have the design as shown in the video https://www.youtube.com/...
by Generator
Feb 06 2015 2:26pm
Forum: EBike Non-hub Motor Drives
Topic: Coaxial-BB-Jackshaft Middrive with TGY Rotomax 80cc Build
Replies: 82
Views: 17065

Re: Coaxial-BB-Jackshaft Middrive with TGY Rotomax 80cc Buil

crossbreak wrote:i'm interested too... how to find out?
I found this very detailed and interesting page, which explains different types of stator windings.
http://www.thebackshed.com/Windmill/FPRewire.asp
Now the question is which one resembles to the Rotomax?