Heat transfer analysis in a power cable
Hi all, I am analyzing heat transfer in a power cable as the result of current flowing through conductor of the cable. Which physics, interface should I use? In Electromagnetic heating Joule heating,...
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Hi Akim, I am trying to perform similar calculations on HV Cable and I'm using Joule heating because it seems to be a better match to reality as we need to model the electric fields in the Cable as...
View ArticleRe: Heat transfer analysis in a power cable
Hi Tanumay, Thank you! I have attached my model, but the problem is that the solution does not converge. I don't know why. Also I wanted to add Volume Force, Inlet and Outlet but Heat Transfer in...
View ArticleRe: Heat transfer analysis in a power cable
Hi Akim The probable reason for the non-convergence of your solution is the '0' value that you have used for the electrical conductivity values for Air, XLPE, Impregnated paper & PVC. 0 is the...
View ArticleRe: Heat transfer analysis in a power cable
Also do verify the correctness of the several variables that you've used for its defined values for giving-in numeric data.
View ArticleRe: Heat transfer analysis in a power cable
Thank you Tanumay for your response! I will try. If I add laminar flow wil all three physics be coupled together? If yes, can you give me an idea how to do it or it is done automatically? Variables?...
View ArticleRe: Heat transfer analysis in a power cable
You may couple Laminar flow either manually by adding Multiphysics node or by selecting a pre-coupled Multiphysics interface e.g. Conjugate heat transfer and couple it with 'ec' 'Variables' mean.. of...
View ArticleRe: Heat transfer analysis in a power cable
What is the electrical conductivity value that you have used for PVC (Cable outer sheath)? What is the reference source that you use for defining new materials?
View ArticleRe: Heat transfer analysis in a power cable
for pvc i used 10e-16 S/m, XLPE : 10e-14 S/m Impregnated paper: 10e-14 S/m Some of them i found from wikipedia, some from other sources. I define heat source as abs(mf.Qrh), but when i run the...
View ArticleRe: Heat transfer analysis in a power cable
I also defined heat source as Electromagnetic heating, the same results
View ArticleRe: Heat transfer analysis in a power cable
Hi Tanumay, As you suggested I put non-zero but small values for electrical conductivity of air, pvc, xlpe and impregnated paper. This time following error shows up: 'Failed to find consistent initial...
View ArticleHeat transfer analysis in a power cable
Hi all, I am analyzing heat transfer in a power cable as the result of current flowing through conductor of the cable. Which physics, interface should I use? In Electromagnetic heating Joule heating,...
View ArticleRe: Heat transfer analysis in a power cable
Hi Akim, I am trying to perform similar calculations on HV Cable and I'm using Joule heating because it seems to be a better match to reality as we need to model the electric fields in the Cable as...
View ArticleRe: Heat transfer analysis in a power cable
Hi Tanumay, Thank you! I have attached my model, but the problem is that the solution does not converge. I don't know why. Also I wanted to add Volume Force, Inlet and Outlet but Heat Transfer in...
View ArticleRe: Heat transfer analysis in a power cable
Hi Akim The probable reason for the non-convergence of your solution is the '0' value that you have used for the electrical conductivity values for Air, XLPE, Impregnated paper & PVC. 0 is the...
View ArticleRe: Heat transfer analysis in a power cable
Also do verify the correctness of the several variables that you've used for its defined values for giving-in numeric data.
View ArticleRe: Heat transfer analysis in a power cable
Thank you Tanumay for your response! I will try. If I add laminar flow wil all three physics be coupled together? If yes, can you give me an idea how to do it or it is done automatically? Variables?...
View ArticleRe: Heat transfer analysis in a power cable
You may couple Laminar flow either manually by adding Multiphysics node or by selecting a pre-coupled Multiphysics interface e.g. Conjugate heat transfer and couple it with 'ec' 'Variables' mean.. of...
View ArticleRe: Heat transfer analysis in a power cable
What is the electrical conductivity value that you have used for PVC (Cable outer sheath)? What is the reference source that you use for defining new materials?
View ArticleRe: Heat transfer analysis in a power cable
for pvc i used 10e-16 S/m, XLPE : 10e-14 S/m Impregnated paper: 10e-14 S/m Some of them i found from wikipedia, some from other sources. I define heat source as abs(mf.Qrh), but when i run the...
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