The thermal characteristics of ACCR lines as a function of wind speed – an analytical approach

• Autorzy: Zaręba Marek , Gołębiowski Jerzy

Identyfikatory

DOI

10.24425/bpasts.2022.141006

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

wind speed; transient temperature field; steady temperature field; ACCR line; mathematical modeling

PL

prędkość wiatru; pole temperatury stacjonarne; pole temperatury niestacjonarne; linia ACCR; modelowanie matematyczne

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2022
• Tom: Vol. 70, nr 3
• Strony: art. no. e141006
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Zaręba Marek

• Faculty of Electrical Engineering, Bialystok University of Technology, ul. Wiejska 45D, 15-351 Białystok, Poland

autor

Gołębiowski Jerzy

• Faculty of Electrical Engineering, Bialystok University of Technology, ul. Wiejska 45D, 15-351 Białystok, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).