Thermal Behavior of EHV Gas-Insulated Lines in Brenner Pass Pilot Tunnel

Author

Benato, Roberto ; Brunello, Pierfrancesco ; Fellin, Lorenzo

Author_Institution

Dept. of Electr. Eng., Univ. of Padova, Padova, Italy

Volume

25

Issue

4

fYear

2010

Firstpage

2717

Lastpage

2725

Abstract

The paper deals with the thermal behavior of a double-circuit gas-insulated line inside the pilot tunnel of the future high-speed railway galleries between Italy and Austria (Brenner Basis Tunnel (BBT)). Since the active power losses generated by the power transmission line may likely be about 7 MW, the thermal behavior of the BBT pilot tunnel and its ventilation requirements have been evaluated by resorting to a suitable computer model. This model is based on a “control volume” approach: a discretization of the space and time domains leads to a network of thermal capacities and resistances to be solved time after time by means of a linear algebraic system.

Keywords

gas insulated transmission lines; linear algebra; railways; thermal resistance; tunnels; Austria; Brenner pass pilot tunnel; EHV gas-insulated lines; Italy; active power loss; control volume approach; double-circuit gas-insulated line; high-speed railway galleries; linear algebraic system; power transmission line; thermal capacity; thermal resistance; time domains; Conductors; Gas insulated transmission lines; Power transmission; Rail transportation; Thermal conductivity; Electric power transmission; gas-insulated lines (GILs); thermal behavior;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2010.2051045

Filename

5560704