Stirling Engine w/ Generator Power Measurement 

Exactly. I was wondering why he did that when he was measuring AMps.

There are 2 issues here with his power measurement First, you nailed it as he was testing short circuit amps, that is why the motor stalled. That is maximum current it can produce, but it is not usable as the voltage will drop to 0 so power is effectively zero also (P=I*E). The second is he was measuring open circuit voltage. There was no load on the generator., not no current was being drawn, again power was effectively zero As a result, the real power is less than the .12W he calculated, What you need is a variable resistor and 2 meters, one in series for current and one in parallel (across the resistor) for voltage. Adjust the resistor in steps and record the voltage and current. Plot these and you will see the power curve under variable loads and should also see the maximum power

You can search on youtube for videos on these. I think it was Philips that made one you put on your stove to power a tube radio. They have been used on and off, but they are tricky. Scaling them is tricky if you want them to be efficient.

Not if you have it running continuously into an external battery

Also, the engines have different power at different RPMs, these are very much like the models from China and the engines are equipped with very less efficient generators (motor reverse usage), these are what I know❤

Not sure if that would work. The generator is DC.

@@tsbrownie Although the generator is a DC motor instead, it emits AC power, which I tested using an oscilloscope, as I once had a similar model.

@@user-wl4eb8vi8b It will emit pulsed DC.

@@tsbrownie In fact, what it outputs is not pure DC. It has three wave peaks in one cycle. At this time, it is inaccurate to use the DC gear measurement. How to accurately measure the power of an engine running at a few hundred milliwatts is also a problem I am dealing with.

I have a video that explains the Sterling engines. They all operate by heating and cooling a "working gas" (air). ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Q5QEBqjkNjo.html

So true.

they have been proved useful over and over again what are you talking about? cryogenic cooling systems? powering mars rover?

Every tool has it's use. Just because a hammer is better at putting in a nail then a wrench doesn't make the wrench useless.

Some people want to know how long it needs before it will start running. So if I keep trying they can see for themselves.

Interesting. Let us know how it goes. Post a video!

Awesome! Make sure you connect belts and generators to all main AND secondary wheels to get the most power. Leave no wheels left un-belted (each engine has two wheels)!!

Also a boost converter amplifies voltage, not the current. The current may go down because of the law of conservation of energy (Power in = Power out). Because of this, the phone charger might not work if the output current gets to low.

Not enough current. You won't be able to charge that phone while in use, and it would take days to recharge it if it was turned off.

Yeah i agree..thats the law of conservation energy mean..if it produce hi-V..maybe can use buck converter.

Not sure I understand your question. Most amp meters put an almost dead-short on the system, so that will drag down a generator.

The meter, as it is attached here is a very low resistance "shunt". You create nearly a dead short with this arrangement. Most of the power generated from the 'generator' (motor) is trying to drive the same motor in the opposite direction. A previous poster alluded to the same.

You are welcome

There are some types that are much quieter, but the mechanical motion creates sound, so the faster it moves (more power) the louder it is.

True. I need to redo it. I was just trying to give a feeling for the power, but a lot of people want better.

"Cool sterling👍"

My wife does not want me to set her house on fire, so I'm banished to the back porch. I have to find better wind breaks.

If you make it, please do a video and post it. I want to see it!

I have roughly measured the efficiency of the little motors they use as "generators" and it is very low, like 10% to 20%. So a good generator might be able to put out 5x to 10x more than I am measuring.

@@tsbrownie so if I replace the motor with a better motor to use as a generator I'd get better voltage?

@@MrMorgan316 Voltage depends on the number of turns in the winding, plus things like total resistance of the windings.

That's they way it came. And you are right, these little motors are not efficient generators. I have a video on that.

You can find them easily online. The best way to measure the output is power, for that you need to measure volts and amps at the same time. The cylinders seem to be test tubes (or glass syringes) that have been sawed off. So I would guess if you can get the same diameter tubes then they could be changed out (some kits supply a spare tube). You also might have to modify / change out the flywheel to change the stroke.

This is a DC brushed generator, so the output is pulsed DC.

I think you are right.

yes it could: web.wpi.edu/Pubs/E-project/Available/E-project-032814-103716/unrestricted/StirlingMQP_Final_2014.pdf

Other companies make different styles out of steel.

I've seen them on Amazon.

Two quick ways: make it bigger, run it at higher temperature differentials.

@@tsbrownie how about replacing generator motor with 775? It will run?

@@HydrO152 What's a 775?

I don't have the equipment to do that. My amp meter will provide a dead short giving bad voltage readings. So it's not the best, but it gives some idea about what is going on.