Recent content by gtg357i

I'm making a coiled heating element from nichrome wire, and I was wondering how the coiling will affect the current. I have values for current needed for straight nichrome wire, but I believe coiling it will change the resistance. Thanks.

The source is a DC motor, rated at 24 V and 16 amps. Therefore the resistance is 1.5 ohms. But this is the motor specs, there are no specs for spinning the shaft and turning it into a generator. We are producing 70 V, so a resistance of 1.5 ohms result in 3267 W. This is not possible as I'm...

I'm a mechanical engineer getting confused with electrical engineering... I've made an electrical generator by spinning the shaft of a DC motor by connecting it to my bicycle. I've tested it with a multimeter, and on 1 kOhm, 2kOhm, 3kOhm, and 4kOhm resistors I'm producing about 70 Volts...

Thanks, I'm looking into the high temp paint idea. You got it, I'm using the dc motor as a generator to produce electricity. What exactly does high temp paint do? I want to electrically insulate it, but allow for maximum heat transfer from the wire to the water. (or wire to copper pot to water).

The ASME design competition is to design a human powered still... basically to use human power to boil water. We have a bike running a DC motor, producing a range of 100-250 watts (depending on pedal speed, we need to test this). To convert this to electricty, we were thinking of using...