TY - JOUR
N2 - The paper has investigated the effect of wind speed on selected thermal characteristics of the contemporary ACCR line. As wind speed functions, heating curves, stationary temperature profiles, steady-state current ratings and thermal time constants, have been determined. The composite core (Al–Al2O3) and the Al–Zr alloy braid were modeled as porous solids. As a result, the physical model is composed of a solid cylinder and a hollow cylinder with different material parameters of the above-mentioned elements. The mathematical model was formulated as the boundary-initial problem of the parabolic heat equation. The problem was solved by the state-superposition of and variable-separation method. On this basis, a computer program was developed in the Mathematica 10.4 environment and the velocity characteristics sought for were plotted. The results obtained analytically were positively verified by the finite-element method in the NISA v.16 environment. The physical interpretation of the determined characteristics has been given.
L1 - http://www.journals.pan.pl/Content/122846/PDF-MASTER/2693_BPASTS_2022_70_3.pdf
L2 - http://www.journals.pan.pl/Content/122846
PY - 2022
IS - 3
EP - e141006
DO - 10.24425/bpasts.2022.141006
KW - wind speed
KW - transient and steady temperature field
KW - ACCR line
KW - mathematical modeling
A1 - Zaręba, Marek
A1 - Gołębiowski, Jerzy
VL - 70
DA - 06.04.2022
T1 - The thermal characteristics of ACCR lines as a function of wind speed – an analytical approach
SP - e141006
UR - http://www.journals.pan.pl/dlibra/publication/edition/122846
T2 - Bulletin of the Polish Academy of Sciences Technical Sciences
ER -