Numerical Simulation of the Flow Field for Rotor Ventilation System of Large-Scale Nuclear Power Turbo-Generator

Abstract:

The nuclear power turbo-generator with large capacity is a basic unit of nuclear power plant, while the cooling technology becomes one of the key issues which affect its design and operation deeply. Axial-radial ventilation structure for rotor is commonly used in large nuclear power generator. In this article, according to the basic principles of computational fluid dynamics (CFD), ventilation’s structure and performance is analyzed, 3D flow model is also established. After the boundary conditions are determined, the numerical calculation and analysis is finished. And then, the rules of flow distribution is obtained, the flow field and the static pressure character of the gap is also computed, which could be very important to the ventilation system of the whole generator.

• Periodical: Applied Mechanics and Materials (Volumes 152-154)
• Pages: 1498-1504
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.152-154.1498
• Online since: January 2012
• Authors: Xiao Hu Zhang, Lei Hu, Jian Hua Yuan, Yi Chao Yuan
• Keywords: Flow Field, Nuclear Power, Numerical Simulation, Rotor Ventilation, Turbo-Generator

References

[1] Pan Ziqiang, Shen Wenquan. Nuclear Energy—the Strategic Role and Sustainability in China[J]. Engineering Sciences , 2008, 10(1): P. 33-P. 38.

[2] Zhong Xinwen. China has the world's largest national nuclear power under construction[J]. Guangxi Electric Power, 2009, 14(11): P. 9-P. 10.

[3] Wang Geng. The analysis of capacity and rotate speed selection of 1 000 MW generator in Chinese plants[J]. Shanghai large and medium-sized motor, 1994, 37(4): P. 1-P. 10.

[4] Ding Shunnian. The heating and cooling of large generator [M], Beijing: Science Press, 1992.

[5] M. Fukushima, K. Yamashita, M. Teraoka. Study on a ventilation simulation for Hydroturbine generator motor[J]. IEEE Transactions on Energy Conversion, 1986, 7(3): P. 174-P. 181.

DOI: 10.1109/tec.1986.4765752

[6] Chi Su, Li Chunying, Li Mengqi. The Network Calculation Method of Hydrogenerator Ventilation System[J]. Hei longjiang Electric Power. 1999, 21(3): P. 10-P. 12.

[7] Tu Xiaojin. 300 MW. The research on ventilation and cooling system of Hydrogen water steam turbine generator [D]. University of Shanghai for Science and Technology, 2002.

[8] HAN Jiade, MA Xianhao, LU Yiping, LI Weili, YIN Wenhao, CHEN Pengfei. Numerical Calculation of Air Mass Flow Rate Distribution in Rotor Radial Ducts of Large Turbo Generator[J]. Proceedings of the CSEE, 2007, 27(32): P. 72-P. 16.

[9] Li Dongmei. CFD analysis of Ventilation structure of air cooling steam turbine generator rotor[J]. Dongfang Electrical Machine, 2006, 34(1): P. 41-P. 45.

[10] Wang Fujun. The computational fluid dynamics analysis(1st edition)[M]. Beijing: Tsinghua University Press, 2004.

[11] Pan Wenquan. Fluid mechanics foundation[M]. Beijing: China Machine Press, 1980.

[12] Wen Zheng, Shi Liangchen, Rengyiru. FLUENT fluid calculation application tutorial [M]. Beijing: Tsinghua University Press, 2009.

[13] Tao Wenquan. Numerical Heat Transfer(2ed edition). [M]. Xi'an: Xi 'an jiaotong university press, 2001.