Recent Event Highlights: Improvised Generator Build at mdpub.com, Shorting out a DC generator motor, Steam Engine 274 Volts DC no load, Larger Steam Engine DC Generator Cam Gear Timing Chain, Realistic tsunami generator would help protect against future catastrophe, Bechtel Announces 2009 Business Results - Marketwire (press release), US Wasted NASA and Opportunity for Energy Independence - The New American, and 129 more...
Created by dipity on Mar 28, 2009
Last updated: 11/14/10 at 06:27 PM
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This is a 12V DC gas powered generator I built using an old lawn edger and a permanent magnet DC motor. I built this to charge up my battery banks on days when it is cloudy and calm when my solar panels and wind turbine aren't making much power. I got the edger for $5 at a yard sale and only paid another $5 for the PM motor at an auction. The entire build only cost a little over $20! More information on this project will be posted to my web site at www.mdpub.com
Bored with motors and transformers now.....next !
This is a larger Steam Engine I have. It was tested at 80 PSI and has a lot of torque. The Permanent Magnet motor is a 1HP Leeson motor that produces very high voltage. It is a good option for lower RPM turbines requiring higher charging voltage. The Timing Chain and gear were placed to test the maximum DC voltage. This is a lower torque setup. For heavier load testing I will be reversing the arrangement. The Geared motor requires 90V DC to run at 4900 RPM to the 120 to 1 ratio of 40 RPM. This Tested at 60 RPM so the power was about 100 watts of the single motor and 185 for the double setup.
Check us out at www.tutorvista.com Simple direct current (DC) generators contain an armature (or rotor), a commutator, brushes, and a field winding. The interactive tutorial presented below examines the operation of a simple DC or direct current generator. Translate the slider back and forth to adjust the frequency of the current. Note that the voltage amplitude increases with frequency. A variety of sources can supply mechanical energy to the DC generator to turn its armatures in order for its coils to cut through the lines of force in a magnetic field. These sources include steam, wind, a waterfall, or even an electric motor. In a direct current generator, the commutator's job is to change the alternating current (AC), which flows into its armature, into direct current. To put it another way, commutators keep the current flowing in one direction instead of back and forth. They accomplish this task by keeping the polarity of the brushes stationed on the outside of the generator positive. The commutator is made up of copper segments, with a pair (of segments) for every armature coil being insulated from all the others. The stationary brushes, which are graphite connectors on the generator, form contact with opposite parts of the commutator. As the armature coil turns, it cuts across the magnetic field, and current is induced. At the first half turn of the armature coil (clockwise direction), the contacts between communicator and brushes are reversed. The first brush now ...
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Washington, DC: Scientists have developed and successfully tested a unique wave-generating machine that mimics the activity of real-life tsunamis with unprecedented realism, which would help protect against future catastrophe.
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DNA India
http://www.dnaindia.com/scitech/report_realistic-tsunami-generator-would-help-protect-against-future-catastrophe_1367599
Bechtel Announces 2009 Business ResultsMarketwire (press release)In the nuclear sector, Bechtel continued work to increase generating capacity at several plants and strengthened its position as a leader in steam generator ...and more »
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National GeographicSolar Brings Light to HaitiNational GeographicAlthough the clinic maintains its diesel generator system as backup and to ensure reliable power in its operating room and for the higher energy needs of ...
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ThomasNet Industrial News Room (press release)Portable Power Distribution Box offers 125 V of power.ThomasNet Industrial News Room (press release)Suited for disaster restoration work, box helps convert 30 A, 125/250 V generator and dryer outlets, and 50 A, 125/250 V range outlets to compact power ...
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New York PostElectric cars charge into Midtown for debutNew York PostThe switch from battery power to generator was seamless. Both cars are expected to hit showrooms in December. The Volt will initially be available in ...and more »
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Craig Sweet: Medicare reductions pose an immediate threat to our patientsThe News-Press1 employer/income generator in Lee County, when you combine the hospital and private practices together, the results for this community will be devastating. ...and more »
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City of Palms will be in National spotlightThe News-Press"They've been an economic generator for the county," Rob Varley, executive director of Florida's Space Coast Office of Tourism, told Florida Today. ...Nationals will tour Lee County ballparkFlorida Todayall 16 news articles »
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Getting the hots for geothermal powerPower-Gen WorldwideThe Wairakei power station is owned by Contact Energy Ltd – New Zealand's leading generator of geothermal electricity, with three power stations in the ...and more »
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Man of Action Studios to Appear at WonderCon 2010Toon Zone... DC Comics and Marvel. Their creation of the mega-popular BEN 10 animated series has led directly to the new GENERATOR REX show, which is based on Image ...
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MyFox Washington DCDC Police Radios Down Citywide For HoursMyFox Washington DCSources tell FOX 5 that it's possible the issue was related to a generator problem at the McMillan Drive facility. At 10 pm Monday, radios were still down, ...and more »
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This DIY wind turbine blade is hooked to a 180 Volt Leeson 3.8 Amp Permanent Magnet Electric Motor acting as a generator. Maximum voltage recorded at ground level was 27 volts. Maximum Watts produced was 43 watts.
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...variety of outlets. There are four 120-volt AC outlets and one switchable 120/240-volt outlet. The generator also has a 12-volt DC outlet for charging small electronics. Each outlet is protected by its own circuit breaker. Design The Alton AT04105D weighs...
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Associated Content
http://www.associatedcontent.com/article/2768364/alton_at04105d_portable_generator_review.html
Regenerative Acceleration Generator Technology test using DC electric bike motor and fixed input. This video shows Regenerative Acceleration from 21 KPH (bike wheel speed) or roughly 2100 RPM (generator rotor speed) while producing about 14 Watts to the load. The system accelerates up to the full speed of the bike KPH limiter of 32 KPH. Cheers Thane President Potential +/- Difference Inc. thane_heins@yahoo.ca
Regenerative Acceleration Generator Technology test using DC electric bike motor and fixed input. This video shows Regenerative Acceleration from 21 KPH (bike wheel speed) or roughly 2100 RPM (generator rotor speed) while producing about 14 Watts to the load. The system accelerates up to the full speed of the bike KPH limiter of 32 KPH. Cheers Thane President Potential +/- Difference Inc. thane_heins@yahoo.ca
I got a wild hair one day and decided to fabricate a poor mans generator from a lawn mower engine and a single wire alternator. I use it to power a battery bank consisting of three deep cell marine batteries. I connected an inverter to the battery bank to change the DC to AC and use it for power outages, camping, charging batteries, etc. Hope you like it! - 5 HP Honda lawn mower engine Vertical Shaft - Pulleys and Belt from Tractor Supply - Aluminum Frame from Scrap Yard - Positive & Negative Clamps, Voltage Meter, & Alternator from Advance Auto The alternator was about $40.00 and was a tractor replacement. The kind that requires no wiring harness. It charges as soon as it starts turning. The system charges at 14.5 volts.
This video shows the power of permanent Magnet motors from DC used in reverse as a generator. The motor is geared so it spins a very high rpms providing a usable DC current. The Exercise DIY bicycle can power a Recreation Vehicle RV Fan, DC air compressor, cordless drill, LED lights. Light Emitting Diode and Incandescent 50 Watt Light Bulbs. The purpose of the video is to demonstrate the inefficiencies of cordless drill motors and portable air compressors and to illustrate the efficiencies of better constructed motors and LED lights vs regular bulbs.
Inside an Inverter generator. This video explains what is the difference between an Inverter Generator and a Regular Generator. Also explains why car alternators are not the best choice for wind turbines. DC generator or DC motors work for power generation. The most efficient generator is the Dual Axial Flux Generator. Electronics Inverter vs. non-inverter generator, generator INVERTER GENERATOR VS REGULAR GENERATOR WHAAT IS AN INVERTER GENERATOR
I got a wild hair one day and decided to fabricate a poor mans generator from a lawn mower engine and a single wire alternator. I use it to power a battery bank consisting of three deep cell marine batteries. I connected an inverter to the battery bank to change the DC to AC and use it for power outages, camping, charging batteries, etc. Hope you like it!
Brushless DC neomagnet motor updated using Dave's 2nd big 12 inch diameter Rodin coil. Using a 12 VDC supply it cranks up to 22700+ RPM ! Awesome. Uses about 800 milliamps at speed. Unusual thing is a load on the charger does not slow the motor down, or use any additional source power. It acts just like a Bedini motor pulse charger. The back spike voltage is approx 450VDC. Charged some 240 ufd/ 450vdc rated capacitors to this voltage in about a minute. Charger is strong. Physically loading the rotor down increases the current, to about 1.2 amps max. Fairly good torque at all RPMs. This is not an over-unity device, although there is some energy recapture done by the charger to batteries and capacitors. It makes a fairly good charger. If you load down the rotor to do some work, it will draw additional power from the source. Aloha and thanks to Dave for sending me this fine coil.
I pass hundreds of pounds of scrap wood every year so I bought a pot belly stove and now turn it into heat. I will use various fuels to test boiler in coming months as well regenerate the exhaust steam to act as bellows for firebox. A stirling LTD may even run off the waste heat from a turbine like this. When the big Greyhound buses stop belching black soot I may start believing the man made not solar caused heating of our planet. The sun increase also may be a good source of boiler heating if focused. . Trying to determine optimum DC or AC motor size for consistent power generation of steam in remote locations. Should be better with steam. I am testing this large motor because I know a smaller 12 0r 16v will perform even better with less self generated pressures ie small boiler or high pressure water. . Want to build a better one? britgaskets.ca This would be ok without belt slip for charging my 500w electric bike as an example of use off steam power. . A test with a permanent magnet 36 volt DC motor on pully, when lenz kicks in the current drops but considering the DC motor is 2x the weight of the turbine a good result. With a 12volt DC motor of 2" I am confident the turbine would hold 25-30 000rpm. There was very little drag or change in speed with the AC stepper motor but it topped out at 75ma, the 36v DC motor generated around 1amp (36watts) but had belt slip so 500ma at 36v would be a good goal for charging at 40psi.
www.wilhoit-az.com This was just a small experiment for the new design of rotor to resolve some balancing issues and you will also see a new reed switches (pulley looking thing). The light is a LED shop light running from a 100( I think) Watt DC to AC Inverter for a car cigarette lighter. Nothing special happening in this video. Will have to wait for more supplies to set up a more controlled series of experiments to pull data from. Update: I had a bad reed switch in this video so the test and light was more successful after the fix.
Improved Brushless DC Pulse motor-generator that goes 10000 RPM. A rodin coil is used to drive a neodymium cylinder magnet, using a Bedini Style pulse motor circuit, with the trigger provided by a Hall-Effect sensor. The magnet is magnteized thru the diameter and mounted over the driver Rodin coil. A second magnet & regular wound coil are the generator part, which producest 240 VAC with no load, and 75 VAC powering a standard AC 6 Watt bulb. See the Google "Rodin Coil" group for a circuit diagram and addit additional information. A couple of observations
DC Pulse motor & charger, with a Rodin coil and a 1 inch diameter neodymium magnet rotor, magnetized thru the diameter. It is triggered by a Hall-effect sensor, and revs up to 8000 RPM when not under load. Any load, physical or inductive slows it down. Volts: 12VDC, Current draw 370 ma, 7800 RPM ( no added load ) 12VDC Current draw 470 ma 3000 RPM Inductive load, powering 6W lamp The charge circuit is a so-called Tesla Shuttle, with a bridge rectifier across the Rodin coil windings, and output to a capacitor or battery. It charges up a 24000 ufd / 50 v cap in up to 50V in a fw minutes. It can charge caps up to about 100v. The circuit diagram is included in the video. More fun with magnets and motors. Aloha
This little film shows the making of a wind turbine that is based around a WindBlue DC-540 PMA. The turbine was made in two days using some great tools and with a clear plan in mind. It is currently mounted on a 4m mast with three guy wires. Output is connected to the battery bank via a diode. Charge control is handled by a Xantrex controller and dump load. Maximum unloaded voltage is 68v, not measured the current yet. This is not a WindBlue endorsed video, I am simply a customer who ordered the DC-540 from their web site and had it shipped to the UK.
This is my 59 Bel Air. I am the second owner, and have owned the car since March 1978. I paid $75.00 for it, with 58000 miles at that time. It is still mostly original, other than it has been repainted, by me, in 1984. Dashboard still has the factory original paint and gauges. Everything on the car works great. Options are, clock, deluxe heater, two speed electric wipers, AM radio,Tissue Dispenser, parking brake alarm...blinking red light in very beginning of video... EZI glass...tinted, rocker moldings, vent shades and license plate pocket guard...gas filler is behind license plate. The engine is a 348 cid 250 hp Turbo Thrust V-8, that has never been overhauled. It has a 4-Jet Rochester carb. The power steering is driven off the rear of the generator...yes it has a DC generator....not a AC alternator with diodes to change the AC to DC current. Power brakes are boosted by factory Bendix booster. Trans is a 3 speed manual and axle ratio is 3.36 to1. Driving it from Michigan to Georgia it got 18 mpg and used no oil.
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...2000 watts of power. This provides you with both 120V AC power in addition to 12V DC power. Also, remember that this is an inverter generator. This means it produces power suitable enough to use with high performance electronics such as computers as high-end...
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Associated Content
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http://www.associatedcontent.com/article/2311893/generator_review_honeywell_hw2000i.html
this is my own build dc generator.it describes the simple principal of a dc generator.
LIGHT AND PORTABLE ALTERNATOR WELDER WITH 120 VDC 20 AMP RECEPTACLE FOR ALL POWER TOOLS WITH UNIVERSAL MOTORS. WELD, GRIND, CUT, SAND, POLISH AND DRILL IN REMOTE LOCATIONS. WHY WASTE ENERGY RUNNING AN ALTERNATOR WELDER WITH A 200 HP VEHICLE ENGINE WHEN YOU CAN USE A 5 TO 20 HP MOWER ENGINE. JUST ROLL THIS UP ONTO THE TRUCK BED AND GET CRACKIN. BUILD IT YOURSELF IN THE SHOP WITH ALL USED PARTS. CHEAP AND RELIABLE. USE A 3 OHM 50 WATT RHEOSTAT TO CONTROL FIELD CURRENT. USE ENGINE RPM TO CONTROL OUTPUT VOLTAGE. GEARED AT 2.5:1 RATIO GIVES YOU 9000RPM WITH MAX ENGINE RPM OF 3600 FOR OUTPUT VOLTAGE OF 120 VDC. THE TINY 6 AMP ENGINE ALTERNATOR KEEPS THE BATTERY CHARGED AND PROVIDES 14 VDC FOR AN INCREASE IN FIELD CURRENT TO THE WELDING ALTERNATOR WITH THIS ADDITIONAL 2 VDC ABOVE THE BATTERY VOLTAGE ALONE. I CAN RUN A 5 PEAK HP SHOP-VAC AND A 4.8 AMP GRINDER SIMULTANEOUSLY ON THIS GENERATOR AND AT WELDING VOLTAGE MAX OUT AT 160 AMPS. THAT HIGH PITCHED WHISTLE IS THE PULSED CURRENT VIBRATING THE WELD PUDDLE. ENGINE RPM = 3600 GEAR RATIO = 2.5:1 ALTERNATOR RPM = 9000 OR 150 CYCLES PER SECOND X 12 MAGNETIC POLE PIECES X 3 PHASES = 5400HZ WHISTLE.
In this video we test a treadmill motor at different rpms to see the resulting voltages. For more information please visit: www.allenergies.net We also discuss what to look for in a DC generator for use in Hydro or Wind.
www.greenpowerscience.com This is a small 24v DC geared motor I attached to one of our Small Stirling Engines using plumbing fixtures for a mount. This is a NO LOAD TEST. The maximum voltage was 22v DC and the estimate was 300 ma. So this can produce about 6.5 watts with this simple setup. I am working on a more efficient process. Due to the weather, NO LOADS were tested today but I have tested some leds and small DC motors with good results. I will expand this test when we get better sunny days. Summers in the Sunshine State are 150 days of clouds:-)
this is video gold!!
SYSTEM OF IMPROVING OUTPUT POWER ON MAGNETIC TRANSFORMER AND POWER GENERATOR. COIL AND WIRE TICKNESS ARE NOT THE ONLY THINGS THAT CHANGE OUTPUT POWER, AN EFFICIENT RECTIFICATION CIRCUIT CAN TRIPLE THE POWER.
DC-Hybrids.com S Cell
Burning DC motor by axial flux generator
Senate Environment and Public Works Subcommittee on Clean Air and ...Trading Markets (press release)FPL Group's principal subsidiaries are NextEra Energy Resources, the largest generator of renewable energy from the wind and sun in North America, ...
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KODAK 9500 Cone Beam 3D System: Large Field 3D, Refined and RedefinedOsseoNewsThe system's high-frequency, optimized DC x-ray generator maximizes hard radiation and minimizes soft radiation to reduce overall exposure while providing ...
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Street cleaning tickets have a real purposeGreater Greater WashingtonHe created a Facebook group arguing that the tickets are just a revenue generator for DC. He also added that Georgetown has no street cleaning (nor does ...
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Lunch links: Feel the powerGreater Greater WashingtonThe streetcar system looks nice; couldn't you just but in a secondary generator and run the AC off of that? by charlie on Jul 9, 2009 1:25 pm So if you're ...and more »
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BUYINS.NET: ACPW, PARL, HPOL, HFBC Expected To Be Lower Leading Up ...Trading Markets (press release)It offers continuous power systems that comprise UPS system, switchgear, and a generator under the PowerHouse brand. Active Power, Inc. also provides ...and more »
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Artnet NewsArtnet"Character Generator," July 9-Aug. 14, 2009, at Eleven Rivington, with nine artists using "text-based approaches" in a show organized by Kitchen curator ...and more »
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Washington TimesTiger teed up winnerWashington TimesWhen a weak field, a toothless track and snarled traffic threatened to short-circuit the marquee status of his event, sports' ultimate emergency generator ...and more »
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Examiner.comChevy Volt Pre-Production UpdateExaminer.comNonetheless, the 1.4 liter, E85 internal-combustion generator engine acts as backup to extend the driving range beyond the 40 miles to be on par with any ...and more »
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Osun DefenderNigeria's Epileptic Electricity, Don Advances Permanent SolutionOsun DefenderCurrent cost of fuel actually makes electricity generated with a household generator at least 5 times as expensive as that from PHCN. ...and more »
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GROUP III ELECTROMAGNETIC-AC Oscillating electromagnetic fields Filmed 1991-1996, 11 of 15 methods of levitating an object known to the author John Iwaszko, edited from the video Antigravity the reality made in 1996. The antigravity method shown in this edit, was introduced and was referred to as Magnetic Pulse Propulsion which has now been reclassified by the author as Electromagnetic AC Group IIIB ii) Electrodynamic Suspension (EDS)-Induced currents/Eddy currents- Oscillating ...
This is a down-and-dirty, unpolished video of the first start of a DC generator I had just put together. The small battery to the left is a starting battery from a lawn tractor, and it has a dead cell so it wouldn't start the engine. I wanted to show a manual start, anyway. Then I had difficulty starting the beast because, although it looked like it had enough fuel in it, it was low enough so the vibration allowed the fuel pickup to suck air. When I figured out what was happening, I added some biodiesel but that part inadvertently got cut from the vid. The last time I tried to use this particular (Delco 10SI internally regulated) alternator, the regulator was toast so while throwing this genny together, I bypassed the regulator and haywired a couple of power resistors to limit the field current (and hence, output current); you can hear the load changing as I move the clip lead to different combinations of resistors (we doan' need no steenkin' switches). At the end, you can see that it is only outputting about 20 amps, while the engine sounds like it has a fairly good load on it. This is a demonstration of just how poor is the efficiency of automotive alternators. I plan to make a vid of welding with this setup, in the near future. Oh, BTW, the revolver is a Ruger old model Single Six, .22 LR.
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