Idea - Energy recovery - Charging on board

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  • DISAR
    Fast Electric Addict!
    • Aug 2007
    • 1072

    #1

    Idea - Energy recovery - Charging on board

    I just had an idea which is not totally CRAZY!

    How about this. To have a charger inside the boat charging the batteries, and the charger to have power supply from the sea/water and speed of the boat. Kinetic energy transformed into electric.

    I am a few years ahead...
    Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
    http://www.rcfastboats.com/
  • ozzie-crawl
    Fast Electric Addict!
    • Sep 2008
    • 2865

    #2
    been thinking about plutonium power cells myself dont tell the greenies

    Comment

    • DISAR
      Fast Electric Addict!
      • Aug 2007
      • 1072

      #3
      As you have the cooling lines, there will be one for charging. Only the charger is missing

      IN: water
      OUT: +5 Amps, 2-...s
      Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
      http://www.rcfastboats.com/

      Comment

      • Meniscus
        Refuse the box exists!
        • Jul 2008
        • 3225

        #4
        I'm thinking that the efficiency of the charger would have to be very high.

        It seems to me that if you were interested in generating power to charge the batteries, I'd do it with the motor. A brushless motor is using power to turn a shaft. If you turned the shaft with something else, then you'd get power (generator). So, why not put another set of windings around the motor to generate power while you're consuming it to turn the shaft? Yes you would use more energy than it provides, but it may lead to some longer runtimes or additional power available for the run.

        LOL!
        IMPBA: 7-Time FE World Record Holder "Don't think outside the box. Rather, refuse to admit that the box exists in the first place!"

        MGM Controllers - Giant Power Lipos - ML Boatworks - Wholt's Wire Drives & Struts - Nano-Oil

        Comment

        • DISAR
          Fast Electric Addict!
          • Aug 2007
          • 1072

          #5
          Or to put another motor between coupler and flex, which will be the generator. In commercial ships it is similar, some they have a shaft generator.
          Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
          http://www.rcfastboats.com/

          Comment

          • AndyKunz
            Fast Electric Addict!
            • Sep 2008
            • 1437

            #6
            Wow, just think - you could remove the batteries and let the generator power the motor directly, and it would run forever!

            Andy
            Spektrum Development Team

            Comment

            • 7500RPM
              Senior Member
              • Jan 2008
              • 110

              #7
              I was thinking Caterpillar drive, stealthy, never hear it coming.........
              There is no replacement for displacement, I guess I just have to Buzz it higher!

              Comment

              • DISAR
                Fast Electric Addict!
                • Aug 2007
                • 1072

                #8
                Originally posted by AndyKunz
                Wow, just think - you could remove the batteries and let the generator power the motor directly, and it would run forever!

                Andy
                I am not an electronics/electrics specialist but without the batteries you will have the boat steady in water forever.

                I just give an idea and someone who is well involved in the business of these motors-escs-chargers may come up with something in the future. Honestly, the thinking is correct the technology is missing. USA is far beyond in technology and we should see someting like that
                Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
                http://www.rcfastboats.com/

                Comment

                • cyberhoops
                  Member
                  • Jan 2009
                  • 61

                  #9
                  I like the creative thinking, but we are going to need some serious technology advances for this one.

                  We have a water towed generator on our Hunter 34 sailboat for crusiing. In this case the generator is able to produce about 12 amps to trickle charge the on-board batteries and it is only a small drag on the 3 ton sailboat. But it would not scale down very well to FE boats. Even at 80% efficiency the drag induced to turn even a small generator would be killer.

                  A generator and motor are very similar - and the amount of force needed to turn the shaft of a generator is much like trying to turn the shaft on one of our brushless motors.
                  Jim Stephens
                  Puget Sound Fast Electric Boat Club

                  Comment

                  • 785boats
                    Wet Track Racing
                    • Nov 2008
                    • 3169

                    #10
                    What you are trying to achieve is Perpetual Motion where a motor drives a generator which drives the motor but still has extra power to drive a load. In this case your prop. A lot of wizards have tried but it hasn't been done yet.
                    A couple of Aussies have made a Zero Point Generator. Which basically produces energy from the magnetic ether all around us. Old Nickola Tesla was going to give the world free energy using his discoveries & principals until the "powers that be"shut him down. Just like they've shut these guys down.

                    Here's what you want just slightly smaller.


                    Do a google on Nikola Tesla... Electromagnetic generators.
                    And ...Scalar Technology.
                    Also... have a look at some of the videos on the sidebar of the one posted above. Like this one.


                    You'll be lost in there for a long time surfing around if you are really interested.

                    Paul.
                    Last edited by 785boats; 04-29-2009, 03:48 PM.
                    See the danger. THEN DO IT ANYWAY!!!
                    http://forums.offshoreelectrics.com/...hp?albumid=319
                    http://forums.offshoreelectrics.com/...hp?albumid=320

                    Comment

                    • Meniscus
                      Refuse the box exists!
                      • Jul 2008
                      • 3225

                      #11
                      Paul, did you see my picture album on Tesla? http://forums.offshoreelectrics.com/...php?albumid=34

                      I'll have to check out the links provided when I'm not at work and have time to read in depth, but what you explained is exactly what I was trying to get at.
                      IMPBA: 7-Time FE World Record Holder "Don't think outside the box. Rather, refuse to admit that the box exists in the first place!"

                      MGM Controllers - Giant Power Lipos - ML Boatworks - Wholt's Wire Drives & Struts - Nano-Oil

                      Comment

                      • DISAR
                        Fast Electric Addict!
                        • Aug 2007
                        • 1072

                        #12
                        Very nice info, so there is "something" actually but for well "unknown" reasons it cannot be further developped. If it is free energy what the power and oil companies are going to do?
                        Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
                        http://www.rcfastboats.com/

                        Comment

                        • egneg
                          Fast Electric Addict!
                          • Feb 2008
                          • 4670

                          #13
                          All that is needed is a flux capacitor!
                          IMPBA 20481S D-12

                          Comment

                          • Meniscus
                            Refuse the box exists!
                            • Jul 2008
                            • 3225

                            #14
                            Originally posted by egneg
                            All that is needed is a flux capacitor!
                            LMAO! I knew I could count on you Egneg!
                            IMPBA: 7-Time FE World Record Holder "Don't think outside the box. Rather, refuse to admit that the box exists in the first place!"

                            MGM Controllers - Giant Power Lipos - ML Boatworks - Wholt's Wire Drives & Struts - Nano-Oil

                            Comment

                            • Fluid
                              Fast and Furious
                              • Apr 2007
                              • 8011

                              #15
                              Regardelss of what anyone thinks, immutable physical laws deny the possibility of true perpetual motion. You would be $$$ and time ahead to simply buy packs with a larger capacity, or run 4P.

                              Yep, just for you I do have a real nice bridge for sale......


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