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As a widely used clean and renewable energy, the wind power has attracted the attention of all nations in the world. The application of evaporative cooling technology in the cooling method of large wind power generator is a new attempt in the discovery of wind power energy. This paper mainly discusses the air cooling condenser with frequency converted axial fan which is adopted in the natural temperature...
Evaporative cooling technique is successfully applied for large turbo generator following the air-cooled, hydrogen-cooled and water-cooled techniques. Compared with the three techniques, evaporative cooling technique absorbs the heat of thermal parts of generator by vaporization latent heat of coolant, which is sharply more efficient than the specific heat cooling approaches. The temperature rise...
As a new generator cooling technology, the evaporative cooling technology has been researched on various aspects to a certain extent, such as the two-phase flow pressure drop, temperature distribution and etc. But there has no research reported on the two-phase flow instability in the parallel hollow conductors in the evaporative cooling system. The occurrence of two-phase flow instability phenomena...
According to the character of liquid and gas two-phase flow in the evaporative cooling generator stator bar, the void fraction was calculated and analyzed using universal model. Experiment table of v ray measurement system was erected. Because all the calculation models donpsilat consulted the influence of flux to the drift velocity, the calculated result and the experiment result are not consistent...
Firstly, this paper introduces two kinds of traditional cooling methods for hydrogenerators. Secondly, it shows the development and the status quo of evaporative cooling technology. Thirdly, it proves that the evaporative cooling technology will temporize the development of Green Power in 21st century from two aspects of reliability and environmental protection. Finally, the developing foreground...
The condenser is the key component in the evaporative cooling hydro generator. The design of the condenser will directly affect the performance of the whole evaporative cooling system as well as the temperature distribution of the stator bar. So, this paper introduced the method of the arrangement of condensers and the design of the capacity of each single condenser. Especially, under unsymmetrical...
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