In my high school, I'm working on a project that will use the kinetic energy of water to produce electricity. I learned about the VIV concept after doing extensive study, and I'm currently working to create a VIVACE. lucky for me, I watched your video. I want to do something similar to this project now, but on a smaller scale and for less money. Can you please assist me by suggesting some alternatives to this material?
using a pair of one-way bearings (also called sprag or clutch bearings). if you look at the picture at 1:30 under each one of those larger sprockets there is a one-way bearing installed at the opposite direction so that at each given time only one of them is driving the motor shaft and the other is just following the motion without transferring any power. it's somewhat hard to explain but the two shafts at the top are rotating in opposite direction (because they are connected with a simple gear) but only one of them that is rotating clockwise is actually transferring power to the motor at each time and the other is rotating loosely without power. the one-way bearings are controlling that.
Hey, no in marine risers we are looking to suppress the vortex induced vibrations but in here we are actually looking to maximize them in order to extract electrical energy. Low speed marine currents have a lot of energy potential and the VIVACE energy converter provides a way to extract this energy. have a look at Dr. Bernitsas's site for more information if you are interested: www.vortexhydroenergy.com
Hi, for my final year project I need to compare the amplitude between simulation and experiment. But my scope covering two cylinders (Passive and Active) with the distance between them varies from 20cm,40cm and 50cm. Do you have the data for this experiment. If you do, it would be a great help and allow me to finish my degree. Where can I get a copy of your research paper, I would really love to read your finding.
Unfortunately I can not disclose my raw results as we are working on a paper at this moment, but if you have any specific question I would be more than happy to answer. Good luck with your project...
@@pouyamohtat8132 or, the 'Tesla of Water'. What I find most compelling, is that Victor's inspiration and focus was based on the observation of nature & the environment. In recent times there seems to be renewed interest in topics such as votex mathematics, biomimicary, "spintronics", etc. Victor Schlauberg and contemporaries like Walter Russell may be somewhat obscure historical figures, but intuition tells me that there is some merit to their work that warrants further investigation. It might be no coincidence that we know so little about these figures past / achievements.
@@pouyamohtat8132 PS. For the sake of all that is good in the world, stop using googel (especially for research)!!! - duckduckgo - qwant - searX - startpage.com ...there are many alternatives to the intrusive technocrat overlords' favorite filter bubble aka g00g3l
The springs are tension type coil springs that are pretensioned so that the cylinder can move up and down without any problems. Also, the generator here was a permanent magnet dc motor connected in the generator configuration. But a true low-speed AC generator (like those used in wind turbines) would do a better job in terms of efficiency.
@@pouyamohtat8132 did you specially manufactured the spring or you got it from some kind of machine if you bought it then please send me the link to buy it online
@@vrushankchavda3154 I ordered the springs according to my requirements from a local shop back in Iran where I was doing my experiments at the time but in us and canada you can order springs and virtually anything that you need from McMaster-Carr. They have a very large selection of parts and they also accept orders for custom parts. www.mcmaster.com/
@@vrushankchavda3154 I really don't remember the specific make of the motor. But it was a 300 W, 1100 rpm, 36 V motor manufactured in Japan. We bought it second hand from a local seller and it was pretty powerful and well made. We had something around 600 to 800 rpm going in to motor and the generated power peaked around 18 watts. I'm sure if we used a lower rpm motor we could make more power...
Awesome concept! Great work.
In my high school, I'm working on a project that will use the kinetic energy of water to produce electricity. I learned about the VIV concept after doing extensive study, and I'm currently working to create a VIVACE. lucky for me, I watched your video. I want to do something similar to this project now, but on a smaller scale and for less money. Can you please assist me by suggesting some alternatives to this material?
Hey I am doing simulation on same model it would be great help if you can share your experiments data or your research paper. Thank you.
Hi, how did u make the motor shaft spin always clockwise when the pulley is turned in alternating motion? Thanks.
using a pair of one-way bearings (also called sprag or clutch bearings).
if you look at the picture at 1:30 under each one of those larger sprockets there is a one-way bearing installed at the opposite direction so that at each given time only one of them is driving the motor shaft and the other is just following the motion without transferring any power. it's somewhat hard to explain but the two shafts at the top are rotating in opposite direction (because they are connected with a simple gear) but only one of them that is rotating clockwise is actually transferring power to the motor at each time and the other is rotating loosely without power. the one-way bearings are controlling that.
Hi, may I know the application for this design? Is it for marine riser?
Hey, no in marine risers we are looking to suppress the vortex induced vibrations but in here we are actually looking to maximize them in order to extract electrical energy. Low speed marine currents have a lot of energy potential and the VIVACE energy converter provides a way to extract this energy.
have a look at Dr. Bernitsas's site for more information if you are interested:
www.vortexhydroenergy.com
@@pouyamohtat8132 Thank you for your feedback. Currently Im doing a case study to reduce the VIV :)
Hi, for my final year project I need to compare the amplitude between simulation and experiment. But my scope covering two cylinders (Passive and Active) with the distance between them varies from 20cm,40cm and 50cm.
Do you have the data for this experiment. If you do, it would be a great help and allow me to finish my degree.
Where can I get a copy of your research paper, I would really love to read your finding.
Unfortunately I can not disclose my raw results as we are working on a paper at this moment, but if you have any specific question I would be more than happy to answer. Good luck with your project...
@@pouyamohtat8132 Are you familiar with Victor Schauberger's research?
@@iwazhere7077 No I'm not. But a quick search on google tells me that he is called the 'water wizard' ...
@@pouyamohtat8132 or, the 'Tesla of Water'. What I find most compelling, is that Victor's inspiration and focus was based on the observation of nature & the environment. In recent times there seems to be renewed interest in topics such as votex mathematics, biomimicary, "spintronics", etc.
Victor Schlauberg and contemporaries like Walter Russell may be somewhat obscure historical figures, but intuition tells me that there is some merit to their work that warrants further investigation. It might be no coincidence that we know so little about these figures past / achievements.
@@pouyamohtat8132 PS. For the sake of all that is good in the world, stop using googel (especially for research)!!!
- duckduckgo
- qwant
- searX
- startpage.com
...there are many alternatives to the intrusive technocrat overlords' favorite filter bubble aka g00g3l
Which type of spring have you used in these project??? and please tell me the type of generator used in these
The springs are tension type coil springs that are pretensioned so that the cylinder can move up and down without any problems. Also, the generator here was a permanent magnet dc motor connected in the generator configuration. But a true low-speed AC generator (like those used in wind turbines) would do a better job in terms of efficiency.
@@pouyamohtat8132 did you specially manufactured the spring or you got it from some kind of machine
if you bought it then please send me the link to buy it online
@@vrushankchavda3154 I ordered the springs according to my requirements from a local shop back in Iran where I was doing my experiments at the time but in us and canada you can order springs and virtually anything that you need from McMaster-Carr. They have a very large selection of parts and they also accept orders for custom parts.
www.mcmaster.com/
How much rpm you were getting at the generator???
Can you send the full specifications of the generator used???
@@vrushankchavda3154 I really don't remember the specific make of the motor. But it was a 300 W, 1100 rpm, 36 V motor manufactured in Japan. We bought it second hand from a local seller and it was pretty powerful and well made. We had something around 600 to 800 rpm going in to motor and the generated power peaked around 18 watts. I'm sure if we used a lower rpm motor we could make more power...