Small engine + Small generator efficiency

[DamienDutch]

How much small generators on a small engine is the most efficient?
And at what RPS?

[izmebee]

load greatly influences all of these and makes it difficult to give a good answer. Read this one three times to make sure i didnt miss keywords like "seat".

Anthing else feeding off that engine or are you trying just for a stand alone generator.

[DamienDutch]

Originally posted by izmebee:

load greatly influences all of these and makes it difficult to give a good answer. Read this one three times to make sure i didnt miss keywords like "seat".

Anthing else feeding off that engine or are you trying just for a stand alone generator.

Just a stand alone generator, its for a electric train btw, and cant really fit a bigger engine

[izmebee]

This is only a rule in my head. But 1 engine 1 generator. Adding more generators only divides the output. Gearbox to get the most out of your generator.

[DamienDutch]

Originally posted by izmebee:

This is only a rule in my head. But 1 engine 1 generator. Adding more generators only divides the output. Gearbox to get the most out of your generator.

Thanks, yeah one medium works best, altough the medium electric engine uses more, it's reaaly quick.

[FinalBoss]

Use 2 dials and hook it to the generator and motor rps and a gearbox, try every single ratio, note which setting generates the most power. Know that the less rps the less fuel you use. Hypothetically I would take say 14 rps 28 generate over 18 rps and 33 generate as I can get a lot more longer usage vis using less fuel.


Electric motors will drain less as you use up battery capacity (someone else may need to confirm.) Sometimes my batteries will drain to .75 and I'll be going a tad slower but not draining anymore.

Finally one of my small motors on a jetski uses 5 generators. It doesnt give me more power over 3 or 4, but my rps got a lot lower while generating nearly the exact same amount as 3 and 4 via having 5.

3 was 14ish x 3 most rps
4 gave me 10ish x4 medium
5 gave me 8ish x 5 less amount rps

So I was getting a net gain per say via less rps and my total generated hardly changing.

40 amount and just less rps on my engine. So 1 to 1 ratio doesnt always hold true and you need to experiment. Side effect is u will be taking up more space and adding weight eith more gens.