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New Nuclear Engineering Study Findings Recently Were Reported by Z.Q. Xiong and Co-Researchers

February 26, 2014

By a News Reporter-Staff News Editor at Journal of Engineering -- Current study results on Nuclear Engineering have been published. According to news reporting originating in Shanghai, People's Republic of China, by VerticalNews journalists, research stated, "Swirl-vane separator is responsible for the separation of more than 80% of water liquid from steam in steam generator. It is vital to understand and predict the separation performance for the design purpose."

The news reporters obtained a quote from the research, "To facilitate the understanding of separation process and provide data for the verification of CFD simulation, experiments on small-scale swirl-vane separators are carried out to study the effect of the slots on the separation performance. Tests were performed with the water superficial velocity ranging from 3.3 x 10(-4) m/s to 1.4 x 10(-2) m/s and the air superficial velocity in the range of 5.7-12.4 m/s. The separation efficiency in the studied cases is in the range of 77.3-99.9%. It depends mainly on the superficial velocity of water. For the pressure drop, the influence of air superficial velocity is dominant. Moreover, it is found that the distribution of the separated water is sensitive to both the water superficial velocity and the air superficial velocity. The fraction of water separated from the down-comer increases with the decrease in the air superficial velocity, while the opposite trend is observed for the fraction of water separated from the assistant barrel. Increasing the height of the slot, upper riser and orifice ring results in a larger fraction of water collected in the down-comer. By adding the tangential slots, separation efficiency is improved at a high water superficial velocity."

According to the news reporters, the research concluded: "To assure good separation performance in a large range of operation conditions, usage of the slot is recommended."

For more information on this research see: Effects of the slots on the performance of swirl-vane separator. Nuclear Engineering and Design, 2013;265():13-18. Nuclear Engineering and Design can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier -; Nuclear Engineering and Design -

Our news correspondents report that additional information may be obtained by contacting Z.Q. Xiong, Shanghai Nucl Engn Res & Design Inst, Shanghai 200233, People's Republic of China. Additional authors for this research include M.C. Lu, Y.Z. Li, H.Y. Gu and X. Cheng.

Keywords for this news article include: Asia, Shanghai, Nuclear Engineering, People's Republic of China

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Source: Journal of Engineering

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