根据国家重点科技项目“三峡水轮发电机组研制”中的“三峡发电机冷却系统研究”立此科研课题。水轮发电机内的损耗热 ,除了极少部分沿大轴传出外 ,极大部分都是通过壁面与冷却空气之间的热交换传递给冷却器散出。因此准确计算表面散热系数十分必要 ,而现代大型水轮发电机励磁 According to the state’s key science and technology project “Three Gorges hydro-generator development” in the “Three Gorges generator cooling system research” based on this research project. The loss of heat within the hydro-generator, in addition to a very small part of the outgoing along the big axis, most of the heat transfer between the wall and the cooling air passed to the cooler. Therefore, it is necessary to accurately calculate the surface thermal coefficient, while the modern large-scale hydroelectric generator excitation