Hi all, I've been making some experiments with heat generated in steel, using induction with coils.
I first tried a bunch of ferromagnetic and electrically conductive nails as a core and used my stingo pulser to see if any heat was created in the core.
Heat was created, though not much.
Then i tried a large 3/4" diameter by 6" long steel bolt, that created more heat within the core.
Was only using about 14 watts and collecting much of the power off the full wave bridge into 20 watt resistor.
I figured we want the biggest field change in the core, so i tried alternating current.
I was inspired to try these experiments, by looking at what little information their is about the Steorn hepha heater device, which apparently uses regular wall AC as the input.
I'm using various step down transformers i have on hand in these tests, to about 12-26 volts AC.
At around 26 watts shown on the killiwatt meter input from grid, it only takes a few minutes until the bolt core is getting too hot to touch and at 130 watts input from a little higher voltage transformer, the core gets too hot to touch in less than a minute.
I just picked up a 2 foot long, 3/4" dia. steel threaded rod, i plan to mount a coil in the middle and see how that heats up.
Then the idea is, to add aluminum heat sink fins along the length of the rod and also if needed, add a couple more coils at equal points on steel rod.
Your thoughts are welcome.
peace love light
I first tried a bunch of ferromagnetic and electrically conductive nails as a core and used my stingo pulser to see if any heat was created in the core.
Heat was created, though not much.
Then i tried a large 3/4" diameter by 6" long steel bolt, that created more heat within the core.
Was only using about 14 watts and collecting much of the power off the full wave bridge into 20 watt resistor.
I figured we want the biggest field change in the core, so i tried alternating current.
I was inspired to try these experiments, by looking at what little information their is about the Steorn hepha heater device, which apparently uses regular wall AC as the input.
I'm using various step down transformers i have on hand in these tests, to about 12-26 volts AC.
At around 26 watts shown on the killiwatt meter input from grid, it only takes a few minutes until the bolt core is getting too hot to touch and at 130 watts input from a little higher voltage transformer, the core gets too hot to touch in less than a minute.
I just picked up a 2 foot long, 3/4" dia. steel threaded rod, i plan to mount a coil in the middle and see how that heats up.
Then the idea is, to add aluminum heat sink fins along the length of the rod and also if needed, add a couple more coils at equal points on steel rod.
Your thoughts are welcome.
peace love light
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