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onetonpump
Australia
129 Posts |
 Posted - 06/03/2010 : 16:36:16
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At the bike-shop I got a lecture about chains ~ this & that!
So I put a new one on & now the smooth rumble as each roller hits a tooth .
Chain-speed =RPM X 3.14 X D / 60 =75X3.14X.4/60==2 m/s
Ratio 100 :: 14 is 7 :: 1 then gearbox 3.3 :: 1 gives 23 :: 1
Cadence 75 RPM :: impeller 1725 RPM.
So it works so smoothly, now the new chain is on, this is it as the way to lift water @ low head.
Next is rendered CAD+CFD & I may have found the man to do this.
Then explanation is 'in your idiom' on a screen, active meaningfilled graphics. Pedal push /torque turn/chain speed/spin sproket/rotate gear/bevel the mesh/pinion spins impeller~~twisted foils fly in fluid; lifting an annular tube of liquid // up a pipe dumped into another-the penstock of little HEG to drag 'rare-earth' permanent magnets past clouds of electrons,bouncing around in copper coils, to give them also a flow [amps]+ pressure [volt] :: it's an energy cycle.
Keep on guessing, I'll get pictures soon!
Waiting for the river to rise > Perpetual Motion happens.
I talk a talk : speaking of what I know to bring a knowledge of this pumping thing "out-there" there is plenty to learn about persuading water to move && getting it's energy out to tranquilize it.
Back to cutting metal/hack!
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n/a
2 Posts |
Posted - 02/17/2011 : 19:14:47
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when could you possible post those pictures?
(non hpv-related ad link removed - Moderator) |
Edited by - Don S on 10/09/2011 19:41:07 |
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onetonpump
Australia
129 Posts |
Posted - 10/18/2011 : 02:18:22
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The pictures are at http:/www.onetonpump.com site.
onetonpump @ blogspot has some more.
This thread continues on "Challenge"
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Don S
USA
88 Posts |
Posted - 10/18/2011 : 19:10:01
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The pictures are interesting. Have you thought about using the principles for watercraft propulsion?
Don
"it's important to understand what makes them fast. It's more important to understand what keeps them from going faster." DS |
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onetonpump
Australia
129 Posts |
Posted - 10/21/2011 : 16:18:28
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Yes!~I mounted the pump with a conical nozzle on it in a Hobie 5m & it worked.
An open prop is more effective for propulsion & this system of big chainwheel to right angle gearbox can be adapted.The ratios can be selected to suit a specific prop & hull speed.It requires a LH prop.
Currently I'm using an old model jet-ski,of the stand-up,with articulated handle type,it's been stripped & cut,ready to modify with fiberglass for use with sliding pedals,not rotating as this takes too much vertical,the size is right for one person,using outriggers for stability.It won't be fast,but a fairly light small craft for messing around in.
Cartop carryable,rugged,for general use.Zip=up 'deck' to shed spray & splash,a chair mounted to slide fore/aft for trim.
I have the design & parts, currently other issues keep me occupied elsewhere.
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