Question

how to design a heating coil ?​

Answer 1

$\huge\bigstar\:$$\Huge\tt\underline\blue{ANSWER}$

Heating Element Design

ρ = Electrical Resistivity (μΩcm)

R = Element Resistance at 20 °C (Ω)

d = Wire diameter (mm)

t = Tape thickness (mm)

b = Tape width (mm)

l = Tape or wire length (m)

a = Tape or wire cross-sectional area (mm²)

$\huge\underline\mathfrak\red{Steps}$

Step 1 – Determine the Voltage of the Heat Needed. ...

Step 2 – Coil the Nickel-chromium Wire in Your Desired Shape. ...

Step 3 – Cut the End of the Heating Coil as Necessary. ...

Step 4 – Attach the Nickel-chromium Wire to the Heat Source. ...

Step 5 – Test Heat Source. ...

Step 6 – Secure the Heating Coil.

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Answer 2

Answer:

Designing a Round Wire Element

V = Voltage (Volts)

W = Power (Watts)

S = Surface Area Loading (W/cm²)

Rt = Element Resistance at Operating Temperature (ohms)

R = Element Resistance at 20°C (ohms)

F = Temperature-Resistance Factor.

I = Wire Length (m)

A = Resistance per meter (ohms/m)