Temperature of an electric wire

General Questions
1

Hello everybody. What is the best strategy to simulate the temperature of an electric wire with the following characteristics?

  • wire material: copper
  • wire diameter: 3 milimeters;
  • wire length: 2 meters;
  • current on the wire: 5 Ampere;
  • ambient temperature: 27 degrees.

Thank you all
Hello

2

Such simulations are usually done using Joule heating coupled analyses (heat transfer + electric currents). In PrePoMax it’s not available but you could use these formulas to calculate the necessary inputs for pure heat transfer analysis (or even get the analytical result for a simple case):

ρ = 1 / σ
R = ρ * (L / S)
Q = P * t = R * (I^2) * t
ΔT = Q / (c * m)

where: ρ - electrical resistivity of the material, σ - electrical conductivity of the material, R - resistance, L - length of the conductor, S - cross-sectional area of the conductor, Q - heat, P - power, t - time, I - current, ΔT - temperature increase, c - specific heat, m - mass of the conductor

3

Thank you very much.
I will try and i’ll send here the images.
Cheers
Giovanni