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  • real time steam engine

    Originally posted by Allcanadian View Post
    @gmeast

    Yes, typically they do but as I stated this is not a typical engine it is a Constant Temperature Engine. Water will flash to steam at 100 Deg Celcius more so when it is a fine mist due to surface area, this occurs near instantly and when it flashes it absorbs 2257Kj of heat per Kg of water----it also expands at a ratio of over 1:1000. So here is the trade off---I am trading heat which was going out the exhaust pipe anyways for pressure in the combustion chamber---work. As well pre-detonation cannot occur at lean mixtures because 1)the combustion chamber is at a lower temperature, 2)the water/steam acts a moderator absorbing both heat and pressure shock waves 3)the combustion chamber is steam cleaned meaning there is no residual incandescent carbon in the combustion chamber to pre-ignite the air/fuel mixture.
    The exhaust temperature(EGT) can be as low as 200 Deg Celcius--not 950 or 1300 Deg F, I have run this low EGT in a 5Hp engine before and 200 Deg C is well below the temperature at which aluminum melts or when the oil will flash over so any engine cooling is really not needed---- It is steam cooled . I was going to mention before that anyone doing what I convered in my previous post should test on a small engine first. What I propose is a bit of a balancing act to say the least, start with water injection first to ensure your system can react fast enough to throttle changes, your EGT should not vary by more than 100 Deg C through all throttle settings. Once this is working then you can progress to the intake bypass valve to lean your air/fuel mixture, again we want slow incremental changes and the EGT should be monitored. Once this is set then and only then should you start loading the engine, you may find the power will start to drop off at higher throttle/load settings at which point you are too lean and the motor will bog----but here is the kicker, when the motor bogs under high load this is because the cylinder pressure is too low to carry the load it does not produce extreme pressures nor extreme heat and cannot hurt the engine--the forces have balanced, cylinder pressure with load.
    My circuit had a simple analog mA guage to monitor thermocouple output/EGT and was calibrated with a thermometer these days we can easily build circuits with fancy LED strips to monitor EGT and I believe there are high temp ceramic thermistors with fast response times so things are getting easier.
    Hi again,

    Since I was a kid I have always wondered if it would be possible to make a 'direct-fired' steam engine. It would be nice to be able to have a gas 'cold-combust' into a lower temperature high pressure gas. Maybe I should revisit that notion.

    Peace,

    Greg

    Comment


    • Originally posted by Allcanadian View Post
      @gotoluc

      It is true, extra fuel was added to cool the cylinders then when emmission standards came along they invented the catalytic converter, but the converter would not run hot enough so they added even MORE extra fuel to cool the cylinders AND keep the catalytic converter hot. Our automotive engineers are a disgrace to the very profession they include themselves in and I have little use for their nonsense. On a brighter side we can undo their stupidity, twenty years ago I started experimenting with perfect combustion and detonation combustion. I developed a very simple circuit in which a thermocouple monitored the EGT(exhaust gas temperature) and this thermocouple signal was sent to the circuit to control a transistor which then controlled a small (variable speed) water injection pump---windshield washer pump. As the EGT rises more water mist is injected at the carb inlet this keeps the EGT at a constant temperature. Your engine is now a "Constant Temperature Engine" you can run the EGT at any temperature you want. In this case when your Air/Fuel ratio is leaned out the circuit automatically compensates to hold the EGT constant. If you run the EGT below 200 Deg it should be obvious that the glycol/water cooling system is no longer required.
      Next, to set the air/fuel ratio I added another butterfly valve downstream of the carburator to admit fresh air into the intake manifold. This Extra air was mixed proportionally with fuel/air from the carburator to set the actual air/fuel ratio into the motor. The extra air butterfly valve was controlled through a non-linear linkage which connected to the carburator linkage, both intakes were connected to a common aircleaner filter. The non-linear linkage keeps the air/fuel ratio slightly lean at idle and progressively gets leaner as the throttle is opened, if you get way too lean the worst that can happen is you start losing power or the engine will misfire. I installed these systems on a VW and a 1974 Chev 1/2 ton with 350 engine,two barrel carb,turbo 350 transmission, I will not even mention the maximum miles per gallon I achieved because quite frankly you would not believe me.
      This system works fine on older vehicles or small motors but as you can imagine it is very hard to install on newer vehicles because of the electronics.
      One engine I found interesting in recent years was the "six stroke engine" which uses the same principals I have outlined but is much more complicated.
      Regards
      AC
      As usual Allcanadian you are way ahead of us

      Thank you for this excellent post and information. If I remember I think you were the one that posted the information I was mentioning.

      I do have one question. Do you think there would be any advantages to inject the water directly in the cylinder just after the fuel explosion compared to injecting it at the intake?

      Thank you for sharing this excellent information

      Luc
      Last edited by gotoluc; 11-09-2008, 05:27 PM.

      Comment


      • integration

        @AC

        Would it make sense to integrate your design with the plasma spark to get even more out of the engine?

        Also do you have a schematic?

        Comment


        • Water injector

          Originally posted by gotoluc View Post
          Thanks for your input Greg ... If this is the case then I think we should start working on making a plug that the center electrode will be a fine tube with ball check valve to inject water at the appropriate time. If both electrodes are perfectly spaced rings (tubes) then we also provide a larger surface for the plasma event and we can use a superior alloy. This would solve many of the problems we are finding.

          Looks like we would be re-inventing Stanley Meyer's injector plug

          Luc

          Way to go Luc!!!

          I thought of this for sometime now, unfortunately one thing bugs me, I don't imagine myself building the whole spark plug. Maybe it is easier than I think but I don't know how.

          Maybe if one makes a design and ask a manufacturer to build it according to our specs, they might accept but there will be a minimum order quantity.

          Maybe by punching a hole trough the center electrode with a laser beam... brainstorming.

          What I imagine is a metalic adaptor that screws between the motor and the spark plug (like you said, Stanley Meyer type), we would still be able to use our good old resistorless L76 Champion and feed water tightly close to its center electrode. This way there will be no water waste because ALL of the water that is feed in will expand.

          We all know that the explosion is followed by an implosion, that's why we call it shockwave instead of expansion. So if we create close enough successive shockwaves the pressure will override the vacuum.

          Also by controling the firing independently from the water injection, we will be able to ajust the cylinder temperature.

          I believe that close spaced firing is possible because I've observed a 2000 uF capacitor charged at 170 V beeing discharged in the primary of a MOT and I was able to reproduce the effet at the secondary in parallel with two MW capacitors. In other words, the dump capacitors where not pre-charged, they reacts instantly.

          Now the question is: How do we sustain plasma long enough without consuming a whole bunch of amps.
          Powerful oscillator? Back EMF feedback? Multi-capacitor bank?...

          I love this place.


          Gibs

          Comment


          • This is all great stuff.... looking forward to seeing someone post how many ERGs they are using.

            Comment


            • Originally posted by gmeast View Post
              Hi again,

              Since I was a kid I have always wondered if it would be possible to make a 'direct-fired' steam engine. It would be nice to be able to have a gas 'cold-combust' into a lower temperature high pressure gas. Maybe I should revisit that notion.

              Peace,

              Greg
              Hi all. Ive been lurking here a long time, my first post?
              I know a guy who ran direct cly injection of water at 300C at 3000psi. Almost blew the head off the engine(streched headbolts, wasted head gasket,cracked piston. There's a lot of power in steam. Here is a different persons invention. Directory:Gun Engine - PESWiki

              Comment


              • @gotoluc
                I do have one question. Do you think there would there be any advantages to inject the water directly in the cylinder just after the fuel explosion compared to injecting it at the intake?
                LOL, I think you know the answer The water is admitted to the cylinder to convert heat energy into pressure and it is pressure which drives the engine not heat---A good example is an air engine is has no heat persay. One problem I encountered was that the water mist could flash into steam when it hit the hot valves and cylinder-----before compression, in this case the rising piston must compress air and already expanded steam and the expanded steam lowers efficiency, we want all of the water to flash into steam near TDC. So yes the perfect system would inject water mist into the cylinder just before ignition to pre-expand the water into steam and cool the engine components. Next ignition occurs and whatever water remains will instantly flash to steam and cylinder pressure will rise. It's kind of funny that this system worked great and was relatively easy to build but there was "One" problem that kept popping up, that is at very lean mixtures I would have misfires and I was looking for a better way to ignite the fuel/air mixture----and you have solved this problem for me in this very thread. From the moment I read this thread I knew you guys had solved the single biggest problem I had with my constant temperature engine and when I replicated your circuit I knew as fact you had solved this problem. I think we should look at this engine system from the proper perspective, it is a steam engine first ----which happens to produce this high pressure steam "IN" the cylinder itself at TDC near instantly. The burning fuel is nothing more that a means to an end---to produce the steam.
                Regards
                AC

                Comment


                • Originally posted by Allcanadian View Post
                  @gotoluc

                  LOL, I think you know the answer The water is admitted to the cylinder to convert heat energy into pressure and it is pressure which drives the engine not heat---A good example is an air engine is has no heat persay. One problem I encountered was that the water mist could flash into steam when it hit the hot valves and cylinder-----before compression, in this case the rising piston must compress air and already expanded steam and the expanded steam lowers efficiency, we want all of the water to flash into steam near TDC. So yes the perfect system would inject water mist into the cylinder just before ignition to pre-expand the water into steam and cool the engine components. Next ignition occurs and whatever water remains will instantly flash to steam and cylinder pressure will rise. It's kind of funny that this system worked great and was relatively easy to build but there was "One" problem that kept popping up, that is at very lean mixtures I would have misfires and I was looking for a better way to ignite the fuel/air mixture----and you have solved this problem for me in this very thread. From the moment I read this thread I knew you guys had solved the single biggest problem I had with my constant temperature engine and when I replicated your circuit I knew as fact you had solved this problem. I think we should look at this engine system from the proper perspective, it is a steam engine first ----which happens to produce this high pressure steam "IN" the cylinder itself at TDC near instantly. The burning fuel is nothing more that a means to an end---to produce the steam.
                  Regards
                  AC
                  Ding! Ding! Ding!... We have a winner I do believe this would be the correct direction we need to take.

                  I've been dragging my feet on this for a while but it is clear to me now what needs to be done.

                  Thank you Allcanadian in helping to put the pieces together

                  Luc

                  Comment


                  • test engine

                    Originally posted by Allcanadian View Post
                    @gotoluc

                    LOL, I think you know the answer The water is admitted to the cylinder to convert heat energy into pressure and it is pressure which drives the engine not heat---A good example is an air engine is has no heat persay. One problem I encountered was that the water mist could flash into steam when it hit the hot valves and cylinder-----before compression, in this case the rising piston must compress air and already expanded steam and the expanded steam lowers efficiency, we want all of the water to flash into steam near TDC. So yes the perfect system would inject water mist into the cylinder just before ignition to pre-expand the water into steam and cool the engine components. Next ignition occurs and whatever water remains will instantly flash to steam and cylinder pressure will rise. It's kind of funny that this system worked great and was relatively easy to build but there was "One" problem that kept popping up, that is at very lean mixtures I would have misfires and I was looking for a better way to ignite the fuel/air mixture----and you have solved this problem for me in this very thread. From the moment I read this thread I knew you guys had solved the single biggest problem I had with my constant temperature engine and when I replicated your circuit I knew as fact you had solved this problem. I think we should look at this engine system from the proper perspective, it is a steam engine first ----which happens to produce this high pressure steam "IN" the cylinder itself at TDC near instantly. The burning fuel is nothing more that a means to an end---to produce the steam.
                    Regards
                    AC
                    Hi AC,

                    Yes ... like I said, "... a real time, direct fired steam engine... If your engine has a decent compression ratio then you should be able to recover most of the water from the exhaust. The adiabatic temp of the exhaust gas should be fairly cool and the steam should be trying to condense into water. It wouldn't take much to recover most of it.

                    You said "...It's kind of funny that this system worked great and was relatively easy to build but there was "One" problem that kept popping up, ... ". That implies that you had/have a test engine. Do you have test data, photos, videos, etc. to share with us? I'd love to see 'em. This is exactly the kind of thing I've been dreaming about for longer than I can recall ... a "COLD" I.C. engine ... seriously!

                    Please tell us more. Maybe this deserves its own thread.

                    Peace,

                    Greg

                    Comment


                    • Just a quick thought with the vexus circuit, what happens if we replace the inverter with the hv stuff from a HID kit??

                      For the tech heads:
                      Input Voltage: 9v-16v
                      Working Current: 3.5 A (Steady)
                      Ignition voltage: 23kV Peak Max, 18kV Peak Min
                      Lamp Frequency: 450 Hz
                      Waterproof & Weatherproof Ballast
                      Just a thought

                      Comment


                      • VDC voltage source

                        Originally posted by Mr_M View Post
                        Just a quick thought with the vexus circuit, what happens if we replace the inverter with the hv stuff from a HID kit??

                        Just a thought
                        Hi Mr_M,

                        I'm up for anything really. The inverter was chosen as an 'off the shelf' item because it was convenient to make medium to HVDC using the car's 12VDC.

                        For the original Gotoluc water spark plug circuit the voltage source (in this case the inverter) is isolated from the spark event because the HVDC source is isolated, it charges a capacitor, is isolated again and then the capacitor is discharged to the plasma circuit. I built a solid state version of this, installed it in my Bug and it worked flawlessly, no problems at all and I still have that complete system sitting on a desk ...actually on a chair.

                        There seems to be problems with the sensitive electronics in today's inverters that make it inconvenient to use them in the latest craze of piggybacking the plasma event on the standard spark which requires them to operate in real-time with the plasma event ... inconvenient meaning the inverters FRY!

                        All we need is a rugged 250 - 350 VDC source (pumped up from the car's 12 VDC system) and we're done. There is more to doing this than meets the eye because of the VDC source's interplay with the rest of the plasma circuit.

                        I seem to have partially overcome this by using a rather generic 2 - transistor (or even four transistor) inverter circuit as that voltage pump and it works and does not sag upon the demand from high speed ignition frequencies (voltage doesn't drop ...stays self regulated)

                        I'm open to everything though, and thanks for your input.

                        Peace,

                        Greg (VexUs's daddy)
                        Last edited by gmeast; 11-09-2008, 11:58 PM.

                        Comment


                        • I have just read the Panceauniversity.org document on the water sparkplug to get more of an understanding of this circuit..

                          From your last post Gregory (Gmeast) you indicated that the frying of the inverter is the major issue that is trying to be overcome with the newer circuits being created.

                          I understand that Bill Cozzolino's Nexus circuit was test driven with a few thousand miles with no inverter failure.

                          My questions are
                          - is "frying inverters" still an issue with Bills Cozzolino's circuit.
                          - what improvements are the newer circuit trying to make over Bills circuit.

                          From my perspective Bills circuit has adequate plasma for my testing (thinking that that there is a point of diminishing returns with plasma spark on an ICE) and Bills circuit is a good starting point for my fuel economy testing with lean burn.

                          But just concerned as to the Bills circuits reliabiliy. Any comments.

                          Comment


                          • circuit

                            Originally posted by turbotrana View Post
                            I have just read the Panceauniversity.org document on the water sparkplug to get more of an understanding of this circuit..

                            From your last post Gregory (Gmeast) you indicated that the frying of the inverter is the major issue that is trying to be overcome with the newer circuits being created.

                            I understand that Bill Cozzolino's Nexus circuit was test driven with a few thousand miles with no inverter failure.

                            My questions are
                            - is "frying inverters" still an issue with Bills Cozzolino's circuit.
                            - what improvements are the newer circuit trying to make over Bills circuit.

                            From my perspective Bills circuit has adequate plasma for my testing (thinking that that there is a point of diminishing returns with plasma spark on an ICE) and Bills circuit is a good starting point for my fuel economy testing with lean burn.

                            But just concerned as to the Bills circuits reliabiliy. Any comments.
                            Hi turbotrana,

                            I'm not familiar with Bill's circuit. The VexUs circuit (the one I'm developing) seems to be the one plagued with the inverter issue and no one knows why. I fixed it by getting rid of the inverter in mine.

                            The last word I heard about the Nexus circuit from lapperLL in overunity.com (and here) was that there developed a cross-talk and misfire problems with the diode strings in the long term testing.

                            What's been noticed is that inverters carry a whole lot of overhead with them and are not at all efficient for the amount of power being diverted to the plasma spark. It is in the hundreds of Watts. I'm presently using only 65 - 85 Watts with my VexUs circuit. If you saw my last pressure test video, there's plenty of plasma clout at only 0.080 Joules of energy per pulse.

                            If you can find current info' about the Nexus circuit would you please share it back here?

                            Thanks,

                            Greg

                            Comment


                            • Originally posted by turbotrana View Post
                              I have just read the Panceauniversity.org document on the water sparkplug to get more of an understanding of this circuit..

                              From your last post Gregory (Gmeast) you indicated that the frying of the inverter is the major issue that is trying to be overcome with the newer circuits being created.

                              I understand that Bill Cozzolino's Nexus circuit was test driven with a few thousand miles with no inverter failure.

                              My questions are
                              - is "frying inverters" still an issue with Bills Cozzolino's circuit.
                              - what improvements are the newer circuit trying to make over Bills circuit.

                              From my perspective Bills circuit has adequate plasma for my testing (thinking that that there is a point of diminishing returns with plasma spark on an ICE) and Bills circuit is a good starting point for my fuel economy testing with lean burn.

                              But just concerned as to the Bills circuits reliabiliy. Any comments.


                              Hi Turbotrana,

                              Greg is right in regards to my having issues with cross talk after duration testing. I attribute the problem to my trying to save space. I diverted from Bill's circuit slightly by not utilizing the 60 diode bank and just increased the the cross talk bank. I am not sure is this contributed to the issue or not but I don't think is does. As you have see, Greg's circuit performs flawlessly with just a 15kv HV diode on each plug. I believe my issue derived from trying to skimp and save money by using a 15 diode string on each cylinder. I tried to save space by zig-zagging the diodes back and forth to make a small package. The problem is that you need to insulate the heck out of them or they will take a short cut and bypass a bunch of the diodes. A straight line is the best if you have the space. I also believe that my routing of wires was an issue. I am in the process changing out my stock plug wires with some custom wires I made using HV neon tubing wire (GTO) it has a very low resistance an will allow me to tie into the wires at the distributor rather than at the plug. The only problem is that I still have not received my HV diodes that I ordered last Saturday. USPS miss-routed the package, so I am still waiting. Once I have received them I can complete my alterations and go back to testing. I have not been able to use an entire tank of fuel to do MPG comparisons, only 100 to 150 miles per pop.

                              Although I can say the only issue I have had with the inverter was the need for an isolation transformer. The inverter that I use does not completely isolate the secondary voltage from the primary, so an iso tranny was required. I believe that Bill's inverter is a higher end inverter and is completely isolated internally. If you are going to replicate his circuit, then I would highly recommend that you check your inverter first and also make sure that it is isolated from any vehicle ground i.e. vehicle chassis. But other than that, the inverter has run without any issues. It draws roughly 4 amps at idle and 7 at higher RPM's. I also ordered a clamp on DC amp meter, so I will be able to provide more accurate info on that.

                              Hope this helps,



                              LapperL

                              Comment


                              • thanks

                                Originally posted by lapperl View Post
                                Hi Turbotrana,

                                Greg is right in regards to my having issues with cross talk after duration testing. I attribute the problem to my trying to save space. I diverted from Bill's circuit slightly by not utilizing the 60 diode bank and just increased the the cross talk bank. I am not sure is this contributed to the issue or not but I don't think is does. As you have see, Greg's circuit performs flawlessly with just a 15kv HV diode on each plug. I believe my issue derived from trying to skimp and save money by using a 15 diode string on each cylinder. I tried to save space by zig-zagging the diodes back and forth to make a small package. The problem is that you need to insulate the heck out of them or they will take a short cut and bypass a bunch of the diodes. A straight line is the best if you have the space. I also believe that my routing of wires was an issue. I am in the process changing out my stock plug wires with some custom wires I made using HV neon tubing wire (GTO) it has a very low resistance an will allow me to tie into the wires at the distributor rather than at the plug. The only problem is that I still have not received my HV diodes that I ordered last Saturday. USPS miss-routed the package, so I am still waiting. Once I have received them I can complete my alterations and go back to testing. I have not been able to use an entire tank of fuel to do MPG comparisons, only 100 to 150 miles per pop.

                                Although I can say the only issue I have had with the inverter was the need for an isolation transformer. The inverter that I use does not completely isolate the secondary voltage from the primary, so an iso tranny was required. I believe that Bill's inverter is a higher end inverter and is completely isolated internally. If you are going to replicate his circuit, then I would highly recommend that you check your inverter first and also make sure that it is isolated from any vehicle ground i.e. vehicle chassis. But other than that, the inverter has run without any issues. It draws roughly 4 amps at idle and 7 at higher RPM's. I also ordered a clamp on DC amp meter, so I will be able to provide more accurate info on that.

                                Hope this helps,



                                LapperL
                                Hi lapperl,

                                Thanks for jumping in and helping with the Q?.

                                Greg

                                Comment

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