| Title |
Temperature Rise Prediction of GIS Bus Bar Considering Thermal Flow |
| Authors |
김중경(Kim, Joong-Kyoung) ; 오년호(Oh, Yeon-Ho) ; 이지연(Lee, Ji-Yeon) ; 한성진(Hahn, Sung-Chin) |
| Keywords |
GIS bus bar ; Convection heat transfer coefficient ; Flow field analysis ; Temperature rise prediction |
| Abstract |
Many works on the temperature distribution of power apparatus have usually done by coupled magneto-thermal analysis. Such a method can not consider the internal gas or oil flow in the power apparatus such as gas insulated switchgear, GIS bus bar, and power transformer. Moreover it can not show the internal temperature distribution of the power apparatus exactly. This paper proposes a coupled magneto-thermal-flow analysis considering Navier-Stokes equations. The convection heat transfer coefficient is calculated analytically by applying Nusselt number for natural convection and is applied to the boundary condition of proposed method. Temperature distribution of the GIS bus bar model considering thermal flow is obtained by the proposed method and shows good agreement with the experimental data. |