Recent content by Logic11

I just scanned this (time...) and it seems like a legit and easy way to control a couple of SuperCaps, making it easy to add a couple to your existing battery system..? Synergetic Control of a Hybrid Battery-Ultracapacitor Energy Storage System If it is, it's an easy way to improve regen and...

Hi guys I have been reading up on how cheap alternators waste a lot of fuel: https://www.delcoremy.com/documents/high-efficiency-white-paper.aspx So was wondering: What motor and 'controller' would you use as an alternator if you wanted a really high efficiency alternator with thin...

Realize that this is an old thread, but the subject is near and dear to my heart. On a small wind turbine, (under 6ft diam) there is little point in putting the work into complicated tip design. The goal of any turbine that small, is to get it rotating fast enough to "fill the circle" ie...

I'm looking at the gasses produced while charging (and discharging) various lithium based battery types: https://iopscience.iop.org/article/10.1149/2.0041906jes H2, C2H4 and CO are all combustible gasses. But nano mol per square meter..?? Surely they mean M3?? My thinking is that; if you're...

I had a quick look at gyros and the physics is ...interesting, if not intuitive. More study reqd. Sigh... :) I would say that if you have weight doing double duty; you're saving weight. ie: If you're building a 2 wheeled, reclining series hybrid anyway; then digging into gyro physics and, if...

Here's a "VERY, very niche application": A small (~30cc) 2 stroke engine, spinning a generator, doing double duty as a gyro. ie: The whole engine, with spinning crankshaft, and the generator, spinning a flywheel full of magnets, does does double duty as both a series hybrid (range extender)...

Basically a simple gyro setup keeping a 'scale model' of a 2 wheel recumbent upright: https://www.youtube.com/watch?v=BWKCImS8mVI&list=PLPp6mROgGKkgi0RgvRIFLudN7MPE_6dqH&index=2 One may have to add a 3rd, controllable axis to lean around corners..?

Necroing this as there's more power here than you and your friend have thought of: Poo Power! or Anaerobic Digestion Basically you wash all the cow etc poo and other biodegradables into a low pressure airtight tank and let it ferment methane. Pipe the methane to a diesel genset's air intake and...

I would advise anyone looking at wind power to google: whale fin tubercles wings fans wind turbine https://newatlas.com/bumpy-whale-fins-set-to-spark-a-revolution-in-aerodynamics/9020/ https://www.windpowerengineering.com/whale-fins-influence-wind-turbine-design/ If making fan blades the...

:) To get that V8 sound you need at least 8 playing cards vibrating in the spokes! :lol:

:lol:

Well this steers by moving the Tadpole suspension arms and is well suited to the ... side lever (whats it called?) type steering usually used. I also note the the outside wheel moves back, which may well help stability in turns as it moves closer to one's center of mass... if you get my...

Thx larsb. Those are some points a I hadn't considered. Still learning.

Thx for replying larsb Low Hysteresis: As I understand it hysteresis is the lag between the application of power to a coil and the core following suite. If the colloids are free to rotate; then hysteresis is no longer a problem..? ie: In stead of becoming magnetized in one direction and...

Thx so much for the detailed reply vvk_rvn. :) Ah; so the genetator windings have been changed to give the exact voltage you want for charging, without ant heavy ad wasteful transformers. Thought as much. I assume step 1 is for charging the battery at the battery's max charge amps? While...