DC ice-melting model for elliptic glaze iced conductor

Abstract

Both operating experiences and experiments show that the cross-section shape of iced conductor has an obvious influence on ice-melting time, however, it is ignored by almost all the existing ice-melting models which suppose that the iced conductor has a perfect circular cross-section shape. Based on the observed results in the natural icing station, this paper has analyzed the shape characteristic of iced conductor, and described the cross-section shape of iced conductor with an ellipse, then put forward a model to simulate the ice-melting process on the iced conductor with an elliptic cross-section. The simulated results have been validated in the natural icing station. Both the simulated results and the experimental results show that the ice-melting time of elliptic iced conductor is less than that of the circular iced conductor. For the elliptic iced conductor, our model is more precise than the existed ice-melting model.