Gas-liquid separation is widely used in many fields, such as nuclear energy and petroleum resources. And the gas-liquid mixture separated gradually shows the characteristic of wide range of gas void fraction and variable flow patterns. However, the current separator only suit for narrow range of gas void fraction or single flow patterns. In this research, two different new type separators using centrifugal technology were designed and an experimental system was fabricated to test the two separators using dry air and water under different flow patterns, including bubble, slug and churn flow. One was called inline separator consisting of three swirls and another was called double-layer cylinder separator making up of a central tube, a swirl and an outer tube. The results show that the separation performance of the inline separator was sensitive with flow patterns and the two-layer cylinder separator keeps high efficiency in different flow patterns. In bubble flow and slug flow conditions, the two separators kept high efficiency, while the oscillation of the gas core in the inline separator increased under slug flow condition. When increasing the gas void fraction, the turbulence of the churn flow led to the diameter of the gas core change drastically and reduce separation efficiency.


ICONE Competition - ICONE28-POWER2020-16297: Experimental Study on Two Different Gas-Liquid Separators Under Different Flow Patterns

Division / Sponsors: 
Power Division & Nuclear Engineering Division (NED)

Power Conference
Paper Proceedings: https://asmedigitalcollection.asme.org/POWER/POWER2020/volume/83747

International Conference on Nuclear Engineering
Paper Proceedings: https://asmedigitalcollection.asme.org/ICONE/ICONE2020/volume/83761

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