Simple 2.5kw power station for boats or home, with solar charger

[Tommey Reed]

I hope I can help you not to make a mistake I did in the past with the pulse generator on OverUnity, they will eat you alive.
Try to test input voltage @ amps and the output voltage @ amps.
This will give you all the data needed to make it more efficient.



Tom...

[DreamThinkBuild]

Hi Tommey,

The final result is it's too in-efficient with this motor setup, the numbers show it clearly.

Results with a 75 watt light bulb run through 2 phase output.
Kill-o-watt measures the input(snow blower motor) loaded 7.67 amp 110vac 720 watt (wow! that is backwards)
Alternator Output measures 146vac 710ma

Results with a 400 watt Quartz Heater. ( 838watts to get a 400 watt heater running)
Input 838 watt 8.53amp 110vac
Output 66vac 1.70 amp

I tried pushing it with a 800 watt heater but the belt started slipping. Too much load and loss with the system.

[Tommey Reed]

Now you see the devil in the details, very in-efficient. You now see the truth in front of you, no free lunch.

You would be better to have a bigger motor, maybe a 2hp will do to make 1000watts of power.

Sorry that your design did not work the way you wanted it too, I've been there many times.....

Tom....

[Tommey Reed]

Think of energy, 746 watts of power. This can be more efficient if you calculate the max rpm's and bring it down to 3800-3600 rpms.
In other words, if your motor is running say 10,000 rpm's you can add more torque when you gear in down to 3800-3600 rpm's.

If your not shore how to calculate gearing take 10,000/3600=2.7 or say 3:1 gear ratio.
This will increase efficiency on your unit...

My dc motor runs at 3800 rpm's, with no load.....

Hope this helps..
Tom

[Tommey Reed]

I see that you are using pulleys, all you would need to do then is calculate the circumference of your motor pulley. (d x Pi) and times the ratio. or say 1:3 would be motor pulley and gen- pulley  (d x pi)  and (d x pi)  x 3.

Tom