会议专题

THE EQUIVALENT THERMAL CONDUCTIVITY OF SNOW SLEEVES ON OVERHEAD TRANSMISSION LINES

The equivalent thermal conductivity of the snow, i.e. heat transfer capability of the snow sleeve, is investigated in this paper. Besides snow density, the strong influences of microstructure and vapor on the thermal conductivity were taken into account in this model. First, a microstructure model for dry snow was developed. Snow was classified into four categories according to the shape of snow grain. Two geometry factors were then introduced and their influence on snow density was discussed in detail. Second, these results were compared with those of prior research, showing good agreement. Dependence on the microstructure and other factors was also studied. Finally, a set of experiments was conducted and their results were compared with those of the model.

C.Zhang M.Farzaneh L.Kiss P.Montpellier

NSERC / Hydro-Quebec / UQAC Industrial Chair on Atmospheric Icing of Power Network Equipment (CIGELE NSERC / Hydro-Quebec / UQAC Industrial Chair on Atmospheric Icing of Power Network Equipment (CIGELE International Research Centre on Atmospheric Icing and Power Network Engineering (CENGIVRE), Univers Reseau de transport delectricite (RTE), Paris, France

国际会议

The 14th International Workshop on Atmospheric Icing of Structures(第十四届结构物大气覆冰国际研讨会 IWAIS 2011)

重庆

英文

105

2011-05-08(万方平台首次上网日期,不代表论文的发表时间)