Research on the Flow Characteristics of Forced Circulation Evaporative Cooling System of Stator in Turbo-Generator

Abstract:

The forced circulation evaporative cooling system of stator in turbo-generator is a new cooling system under study, with the advantages of high-security, high efficiency and energy-saving. In this paper, an experiment table of this new cooling system with single hollow conductor was established. The flow characteristics of coolant in hollow conductor were analyzed and discussed by theoretical simulating and experimental researching. The results show that with the volume flow of coolant increasing, the variation tendencies of total flow resistance in hollow conductor and Xe are not monotonic and the prediction precision of total flow resistance in hollow conductor is satisfying with maximum relative error less than 10%. The length of subcooled flow boiling region in hollow conductor is relative long and can not be ignored. The conclusions in this paper can provide the theoretical and experimental basis for the further study of this new cooling system.

• Periodical: Advanced Materials Research (Volumes 516-517)
• Pages: 1618-1621
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.516-517.1618
• Online since: May 2012
• Authors: Hai Hong Dong, Lin Ruan
• Keywords: Evaporative Cooling, Flow Characteristic, Forced Circulation, Hollow Conductor, Turbo-Generator

References

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[6] Dong Haihong and Ruan Lin: submitted to Asia-Pacific Power and Energy Engineering Conference (2012)