How to design a simple temperature controlled electrical heating system ?

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Discussion Overview

The discussion revolves around designing a temperature-controlled electrical heating system for a cylindrical aluminum tube, with a focus on achieving and maintaining temperatures up to 300 degrees Celsius. Participants explore various methods for heating, controlling temperature, and safety considerations.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant inquires about the method for incrementally controlling the temperature using electric coils and seeks guidance on the type of wire and current needed to achieve the desired temperature.
  • Another participant suggests that control could be achieved by either adjusting the current in a single coil or using multiple coils that activate at different times.
  • A reference to manufacturer information from Omega is provided to assist with understanding control methods and necessary products.
  • A warning is issued regarding the high temperatures of the tube, emphasizing the need for proper isolation or shielding to prevent accidental contact.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the specific methods for controlling the temperature or the materials to be used, indicating that multiple competing views and uncertainties remain in the discussion.

Contextual Notes

There are limitations regarding the specifics of the control mechanisms, the type of wire suitable for the coils, and the exact current required to reach 300 degrees Celsius, which remain unresolved.

Who May Find This Useful

Individuals interested in electrical engineering, thermal management, or DIY heating system design may find this discussion relevant.

Tejas Rathod
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Hello,
I have a cylindrical aluminium tube ( Diameter- 8cm, Length-15 cm, Thickness - 0.5cm ). It is insulated from bottom and open from above. I want to raise the temperature inside the tube maximum upto 300 degree celsius in a controlled fashion. I want to use electric coils to heat it. Can anyone guide me have to proceed about this problem.
 
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I suppose that it depends upon what sort of control you want. The only things that immediately come to mind if you want it "stepped" is to incrementally increase or decrease the current in a single coil or to have several separate coils that can be set to come on at certain times.
 
Thankyou. i will incrementally increase or decrease the current. But i don't know which wire i should use to make the coils? How much current i should pass through the coils to generate temperatures around 300 Celsius ? How can i control the temperature ?
 
that tube will be REALLY hot and needs to be isolated/shielded to avoid any unwanted contact with flesh.
 

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