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I want to know how can I heat a plate at 2KW using an electrical circuit. I need this circuit for a research project. I have to heat a large area so I am hoping that I could use something like a wire mesh to heat the plate.

I was looking to directly supply 220V AC to a resistive wire, but my advisor says it might be dangerous to do so.

I would be grateful if you could help me out with the circuit.

Plate Dimensions: 400mm x 64mm base area.

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    \$\begingroup\$ Why do you want to rectify it? It doesn't make it any less dangerous... \$\endgroup\$ – PlasmaHH Jul 17 '17 at 14:42
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    \$\begingroup\$ Use some large incandescent light bulbs. \$\endgroup\$ – analogsystemsrf Jul 17 '17 at 14:44
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    \$\begingroup\$ 2KW does not mean anything here without dimensions, temperatures required, space limitations etc. Also, rectifying makes no sense.... \$\endgroup\$ – Trevor_G Jul 17 '17 at 14:49
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    \$\begingroup\$ You want to put 2 kW of heat into a 40 x 6.4 cm plate and you're worried about electrical safety? I'd be more worried about burning the building down. ;-) \$\endgroup\$ – Andrew Jul 17 '17 at 15:02
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    \$\begingroup\$ What temperature does it need to get to? If it's less than 100 °C you could have a bath of water at the correct temperature and pump water through the block. You should be able to achieve 2 kW of heat transfer safely that way. \$\endgroup\$ – Andrew Morton Jul 18 '17 at 9:34
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Sounds like what you need is a custom shape electric stove element.

Stove elements are typically directly connected to 220 VAC, but note that the resistive wire is encased in an electrical insulator (but thermal conductor) and then enclosed in a protective metal tube. This isolates the outer surface of the heating element from the electricity, making it safe (electrically at least).

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