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Forum Index : Other Stuff : Tilt table Gravity Assisted Pulse motor
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| govertical Guru  Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/4Oj5fGAKXaE Hi, I found the above video showing manual operation. I am attempting to to automate the operation. https://youtu.be/mVWJ5Dnr8-c https://youtu.be/iJujIiis5lg just because your a GURU or forum administer does not mean your always correct :) |
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Gizmo Admin Group  Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Mate I wish you could understand the laws of thermodynamics that will explain why these machines will not work. You've put a great deal of work and clever design into your attempts over the years, but its wasted effort. In that first video, the man pushing up and down on the contraption will be exerting more effort than was gained in lighting the light bulb. It would have been easier if he hand cranked the push bike wheel. Gravity assist only works in one direction, down. As soon as you go back up, the energy gained is lost, plus a bit. That weight may be going around a axis, but its also going up and down. No gain. Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, thanks for the info. I should be testing in a few days, I will post results. The only claim at this time is it not a overunity project. It is good to know you will keep things honest and on the up and up. No word games or smoke and mirrors on my part. Cheers just because your a GURU or forum administer does not mean your always correct :) |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/bI8Rh0xDI4I swing 5 configuration https://youtu.be/jKIWcJiJs04 Combining the above configurations for better results. Using electromagnet to drive it past the dead spots. It will be a pulse motor driving a PMA. Output shaft will have a max RPM with no load. Under load, output will always be less than 50% of the power at the input similar to a wind turbine. just because your a GURU or forum administer does not mean your always correct :) |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
If you spent 10 minutes with a university science teacher, he would explain to you why this can never work, and you would save yourself a lot of time and effort. The simple test is, put your device in a box. At one end is the output, electrical power in your case. At the other end in the input. This is where you supply the device with the power it needs to run, a little solar panel in your case. Now.... THE OUTPUT WILL ALWAYS BE LESS THAN THE INPUT. There are a bunch of laws that say this, and if the laws were wrong, no machine in the planet would work. Ask the science teacher to explain it. Therefore if you intend to power this "box" with a little solar panel, say 20 watts, then the output power MUST BE LESS THAN 20 watts. No amount of trickery inside the box will give you more power out than you put in. Gravity can not be used as a source of self replenishing energy, think of gravity as nothing more than a spring. I dont meant to be rude, your efforts and workmanship are admirable and you seam like a nice person, but you are wasting you life. The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/aaF1_AyZe-c pulse motor technology will be used to move a weight when the input rotor is horizontal. Your correct the output will always be less then the input power. It will be just a motor driving a PMA. I will post test results when available. This is not a OU project. just because your a GURU or forum administer does not mean your always correct :) |
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powerednut Senior Member  Joined: 09/12/2009 Location: AustraliaPosts: 221 |
Go, I admire your craftsmanship, but.... I can't resist asking. Why are you driving a permanent magnet alternator with a motor? Why move the weight? One gravity assist motor I've seen that works is water being pumped up to a tank. You trade a small amount of power over a very long period for a large amount of power over a short period. From an efficiency standpoint the power loss was horrendous. On the other hand the small amount of power wasn't doing anything anyway, and they had the big power on tap (heh) when needed. |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, the main project is a stirling engine but it is summer and just to hot for a fire. The gravity assist pulse motor is a test fixture for a DC to DC step down circuit with a variable duty cycle that can be used with a PMA. It will give a visual result when the duty cycle is increased and decreased. just because your a GURU or forum administer does not mean your always correct :) |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/S4O5voOCqAQ I am also searching for a better solution. just because your a GURU or forum administer does not mean your always correct :) |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/BPPi8cVoEmg Idea from other projects on YouTube. just because your a GURU or forum administer does not mean your always correct :) |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
One way bearing installed at the flywheel, now the flywheel can function like a wind turbine. So the Betz's limit will apply to the flywheel. https://youtu.be/QPeIDnyDxvw just because your a GURU or forum administer does not mean your always correct :) |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
How can the Betz limit be applied to a flywheel? The Betz limit dictates how much energy can be captured by a wind turbine, from the wind passing through it. Are you passing air through your flywheel? The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, if you try to draw more power than 50% from the wind turbine what happens? I think it will stall. I view the motion of the flywheel the same way. I plan to pulse the output from the PMA at less than 50% to prevent system stall. https://youtu.be/cWCytxxExws Video from 2 yeas ago. Are turbine blades a large flywheel? just because your a GURU or forum administer does not mean your always correct :) |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Well if you want to use 50% of the available power, then say that. Dont compare apples to oranges, a flywheel is not a wind turbine, and therefore Betz does not apply. You may as well compare a gravity assisted motor to a diesel engine because they both have flywheels. If you draw 50% of your power from your flywheel, it will also stall, unless you put more than 50% back in. If you draw 1% from your flywheel, it will stall, just takes longer. The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
Hi, thanks for the info. https://youtu.be/woVzF59FcsQ just because your a GURU or forum administer does not mean your always correct :) |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/aaF1_AyZe-c https://youtu.be/73C44sX-xLs https://youtu.be/jKIWcJiJs04 https://youtu.be/B3dLzZZ5jKQ Combining the above ideas to complete the project, it should take a few weeks. just because your a GURU or forum administer does not mean your always correct :) |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
https://youtu.be/2u0krL4SW6Q just because your a GURU or forum administer does not mean your always correct :) |
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fillm Guru Joined: 10/02/2007 Location: AustraliaPosts: 730 |
Wata Wonderful contraption and a credit to your skills and engineering ability. Still no meaningful power output but it could be a great exhibit piece for interactive power generationon on the mA scale. Macgyver loaded a link to a water pumping wind sail that would suit this, as it waves to either side like a pendulum as and sits on a platform in a dam pumping water. It would be amazing to see what you could produce if you really got serious about designing a HAWT but something tells me that its just not your cup of tea. PhillM ...Oz Wind Engineering..Wind Turbine Kits 500W - 5000W ~ F&P Dual Kits ~ GOE222Blades- Voltage Control Parts ------- Tower kits |
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| govertical Guru Joined: 11/12/2008 Location: United StatesPosts: 383 |
No wind, no power and I live in a low to no wind area. Gravity is always on. http://www.engineering.com/ElectronicsDesign/ElectronicsDesignArticles/ArticleID/11200/Electricity-from-Human-Power.aspx http://www.rapidtables.com/convert/electric/Joule_to_Watt.htm math for the power calculations I should be testing in a few weeks. just because your a GURU or forum administer does not mean your always correct :) |
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| Gizmo Admin Group Joined: 05/06/2004 Location: AustraliaPosts: 5078 |
Gravity is NOT a ever lasting energy source. You can use it once to drive a mechanism. To reset, you MUST put in more energy that you took out. Gravity is no better than a spring. You can wind it up, use the stored energy, wind it up, use the stored energy, etc. But you will ALWAYS get less out that you put in. At some point to need to say "Maybe the guys on Other Power and TheBackShed were right, I cant break the laws of physics. This gravity assisted motor wont and will never work!", and then put your talents to building a better mouse trap or something. Its up to you to set that point. You've been at this for years now, when will it be enough time and effort wasted? Glenn The best time to plant a tree was twenty years ago, the second best time is right now. JAQ |
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