Induction plate power dropping efficiency

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Iulistoi
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Induction plate power dropping efficiency

Post by Iulistoi »

Why there are differences in power efficiency between pots, even all are magnetic? I have pots that use 80-90% net power, other much lower efficiency and they spend longer time going to boiling.

If the diameter of pot exceeds the plate, is this a reason for dropping the efficiency or the composition of the pot? The bottom made of sandwich with aluminium layer and stainless steel disc holds the magnet strongly but the sides have weaker force of attraction. The net power used is about 1400W out of 2100, that is too low for 2 inch column. I need about 1800-2200W for optimal working of the column.

PS: The net power can be calculated by heating a certain amount of water and applying formula: [4200 x Water Volume × (Final Temperature - Initial Temperarure)] / Time in Seconds = Power in Watts.
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NZChris
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Re: Induction plate power dropping efficiency

Post by NZChris »

Are you using an ammeter to check the current you are drawing?
Iulistoi
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Re: Induction plate power dropping efficiency

Post by Iulistoi »

NZChris wrote: Wed Oct 13, 2021 11:56 pm Are you using an ammeter to check the current you are drawing?
No, but with other pots the heating is faster and the boiling is more vigurous
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subbrew
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Re: Induction plate power dropping efficiency

Post by subbrew »

It is related to the metal composition of the pots. If you remember it was not long ago when most stainless pots would not work at all on induction plates. They were not magnetic so the magnetic induction of the plate didn't cause the molecules to move and thus didn't induce heat. With the more widespread use of induction cook tops companies started to change the pans. Some made them more magnetic than others. The more magnetic the more efficient induction is. As for not being magnetic on the sides, they don't want the sides to heat, you want to heat from the bottom. Hot sides will give burning on to edge of the pot contents.
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Demy
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Re: Induction plate power dropping efficiency

Post by Demy »

The largest diameter than the plate could be the cause, even the quality of the material used to build pots could affect the times.
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