The calculation of the over-all heat transfer coefficient of the condenser in the evaporative cooling system of the hydro-generator

The condenser is the key component for the evaporative cooling system of hydro-generators. And the over-all heat transfer coefficient is primary standard to judge the condenser´s performance. In order to more comprehensively understand the evaporative cooling system and evaluate the condenser´s work efficiency, it is important to calculate the over-all heat transfer coefficient of the condenser. In our works the over-all heat transfer was calculated in each stage and a kind of calculational methods was brought forward, thus the over-all heat transfer which is a value related to a process was proved.