Linear induction to produce heat in a nichrome wire - Possible?

In summary, the conversation discusses the possibility of using linear induction to produce heat in a nichrome wire. The design constraints of the device are mentioned, including the maximum distance and diameter of the rare Earth magnet, the length of the copper solenoid coil, and the overall diameter of the device. It is noted that any current will produce heat, but it is unclear if it will be sufficient for the desired objective. The speaker asks for advice or help in achieving their objective.
  • #1
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linear induction to produce heat in a nichrome wire - Possible??

I'm attempting to design a device that will use the same principals as the faraday flashlight. Wherein a rare Earth magnet slides back and forth inside of a copper solenoid coil, which generates a current. My device would then have the current pass through a highly resistive wire (likely nichrome 20 gauge or higher) to generate heat.
My question is: with the following design constraints is it possible to produce enough current to generate heat in the nichrome wire.
The maximum distance of the tube is 380mm. The maximum diameter of the rare Earth magnet is 6.5 mm, but the length could be up to 380mm because multiple magnets could be put in series to create one long slider. Obviously if the magnet is 380mm long it won't be able to slide, so I a smaller length would have to be used. The length of the copper solenoid coil could be 380mm and the maximum outer diameter of the device could be 12.5mm, therefore with the copper wire wrapped around an 8.5mm diameter plastic tube it could be wrapped to a thickness of 4mm (not sure what this would translate to in rotations, also not sure of the best gauge of copper wire to use).
The rare Earth magnet would go through one full cycle per second when the device is in use.
Any advice or help is greatly appreciated!
 
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  • #2
Yes, any current produces heat.

But I think you want "sufficient" heat to meet your objective. But you didn't say what your objective is.
 

1. How does linear induction work to produce heat in a nichrome wire?

Linear induction uses a series of electromagnets to create a moving magnetic field, which then induces an electric current in a nearby conductor, such as a nichrome wire. This current produces heat in the wire due to resistance, heating up the wire.

2. What is the advantage of using nichrome wire for heat production?

Nichrome wire has a high melting point and low resistance, making it ideal for producing heat. It also has a relatively stable resistance, allowing for consistent heat production.

3. Can linear induction be used for other types of wire besides nichrome?

Yes, linear induction can be used with any type of conductor, but the choice of wire will depend on the specific application and desired heat production. Nichrome is commonly used for its properties mentioned above.

4. How efficient is linear induction for heat production?

The efficiency of linear induction for heat production depends on various factors such as the design of the induction system, the quality of the wire, and the desired temperature. However, it is generally considered to be a highly efficient method of heat production.

5. Are there any safety concerns to consider when using linear induction for heat production?

As with any electrical system, there are potential safety hazards when using linear induction for heat production. Proper insulation and grounding are essential to prevent electric shocks. Additionally, the high temperatures produced by nichrome wire can be a fire hazard if not controlled properly.

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