Interesting thought but it may not be feasible for the following reasons:
1, The Peltier for example uses about 4 amps at 12 VDC which is approximately 50 watts of power (much larger models use about 400 watts) Assuming the generator is 70% efficient that means you would have to "pull off" the engine power about 71 watts.
2. The 540 XL motor has a nominal rating of 800 watts. Thus you must use about 10% of the motor power just to have a generator supply the voltage.
3. Net result is that it is MUCH easier to do with just another small 3 S LiPo pac.
BUT, most importantly the power requirement is a distant second to the amount of cooling required to get the Peltier device to work. It is this large cooling requirement that prevents their effective use to cool the ESC and not the voltage.
1, The Peltier for example uses about 4 amps at 12 VDC which is approximately 50 watts of power (much larger models use about 400 watts) Assuming the generator is 70% efficient that means you would have to "pull off" the engine power about 71 watts.
2. The 540 XL motor has a nominal rating of 800 watts. Thus you must use about 10% of the motor power just to have a generator supply the voltage.
3. Net result is that it is MUCH easier to do with just another small 3 S LiPo pac.
BUT, most importantly the power requirement is a distant second to the amount of cooling required to get the Peltier device to work. It is this large cooling requirement that prevents their effective use to cool the ESC and not the voltage.
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