Magnetic Induction Stoves

[AgentofGaming]

Yesterday my Electromagnetism professor told us about cooking by magnetic induction. He claimed that it was far more efficient than the traditional element and gas stoves. However you need a special type of pot to cook.

The stove generates magnetic flux which I believe creates a magnetic field on a resistive pot. Magnetic fields induce current, however there is a loss of current from the resistance turns into heat which is far more efficient that heating an element which in turn heats a pot.

P=VI, as energy is dissipated into heat by resistive elements.
Before I went into engineering I didn't know heaters were just big resistors. :rolleyes:

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Any comments?

[yondyr]

Interesting subject given my situation of solar power which means I'm unable to use anything electric that sucks power, i.e. heating elements. I'll look into since I'm closer to Asia. I suspect for boiling water, the element in the water method remains the most efficient, but for heating/cooking foods induction would be a good option but still sucks power, having looked at what's available online and they use anywhere up to 3000watts.

(psst could you ask prof how I can convert my huge supply of free wood into charging my batteries? lol I am serious but I know it's a stretch)

[AgentofGaming]

If you live near a body of water maybe you can use wind or a watermill to supplement. Also they've just began to harness power from rain.


If you want to convert wood to energy, I think you'd have to burn it.
You can burn garbage too to power a steam engine which could charge your batteries if they are rechargeable. Of course I'm not a professional engineer so my advise is a liability.

Also my professor doesn't specialize in power or chemistry so I doubt he'd know.
Of course you could email (To view links or images in this forum your post count must be 2 or greater. You currently have 0 posts.) him yourself but that'd be weird.

[yondyr]

(replies very quietly cuz it was a thread hijack...thanks, we've considered most and rejected most, never mind.)

[denaria]

I'm now on my second kitchen re-fit and my second induction hob (stovetop). I think they're wonderful! All you need are decent pans with bases which are capable of attracting a magnet (not all stainless steel does, so you need to check). I use "domino" hobs, so I have a main 4 ring induction hob and a secondary two ring ceramic electric hob for the odd pan that doesn't work - but in fact I've only used the secondary one twice in 9 months.

Induction hobs are as fast if not faster than gas, as controllable, much easier to keep clean, much safer, and as cheap to run. The only mild downside is that the electronic controls can get their knickers in a twist from time to time - but you learn to avoid the situation that upset them.

Just wish they'd extend induction technology to other appliances - driers, ovens?