Steady State Hot Gas Flow Analysis for Nozzle Model Considering Nozzle Ab

노즐용삭을 고려한 노즐모델의 정상상태 열가스 유동해석

This paper describes a method for steady state hot gas flow analysis considering nozzle ablation for the nozzle of $SF_6$ gas circuit breaker. In order to take account of the effect of ablated nozzle material on the hot gas flow. the PTFE mass concentration equation is added to the established equations for hot gas flow analysis. The steady state simulations were carried out under the condition of DC current flows and the results are presented.