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Possible to make an omelette on-the-go on rechargeable batteries? Answered

Hi guys! I really need your advice!

I want to make a device where you can bake an omelette outdoors where there's no poweroutlet available (like a mini portable stove). So my question is if it's possible to use rechargeable batteries (maybe LiPo batteries?) to make enough heat to bake at least one egg. The diameter of the omelet will be about 75mm so, the area is quite small. I have no idea how much power it takes to bake an omelette and I don't really know what to compare it to. 

So my questions is:
- Is it possible to generate enough heat to make an omelette with the use of rechargeable batteries? If yes, which batteries are the most practical?

Thanks in advance!

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iceng

Best Answer 4 years ago

Of course it is !

The engineering comes into use when we look at the smallest rechargeable battery and the most efficient ( insulated ) stove/E_fry-pan to do the job.

Though a simple Tea-candle will do several omeletts, as will a can of Sterno.

There are about a dozen patents on this subject see

http://www.freepatentsonline.com/D463203.html

.

You need to answer which is more important to you Size or Weight ?

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gojillahiceng

Answer 4 years ago

I can't use fire for the design. I thought of charging the product on a poweroutlet and cook it when your outdoors.

I find the weight of the device more important. Is there a way to calculate how to choose your batteries?

Thanks for the your reply and that site btw, i'm going to take a look at it!

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icenggojillah

Answer 4 years ago

First we design 75 mm =2.96" or 3" diameter cooking pan and the insulating enclosure.

Next add two 25 watt 4ohm Dale metal clad resistors to the bottom of .... say a 3" tin can. RH style resistors are less expensive then the NH non-inductive wire wound resistors and can run at 250 C.

Surround the can and mounted resistors with the best 4" foam insulation and a plex top window.

For a battery the A 11.1volt 2200mah 3 cell Li-Poly pack.

RH4ohm25W.jpg11V2200ahBATTERY.jpg
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icengiceng

Answer 4 years ago

Here is a circuit.

BatHOTplate.bmp
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gojillahiceng

Answer 4 years ago

Hi! It's me again!
I want to build this circuit for my project, but I cannot find the 4Ohm 25Watt resistor that is available in such a short notice.. Is there a way to use other resistors? I don't mind using a few extra resistors or less.

I'm really bad at calculating, but maybe you can show me how?

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gojillahiceng

Answer 4 years ago

You're a hero! thank you so much :)

I can totally work further with this