Abstract

Understanding the underlying flow mechanisms of inertial particle separators is important to creating more efficient separators. Previous experiments have utilized test dusts that vary dramatically in size and shape. These factors make it difficult to validate computational models due to the complexity that they introduce into the system; on top of an already complex flow field. Efficiency measurements were completed using spherical particles to isolate these effects on IPS efficiency. Three different particle sizes were tested at three different flow splits on each geometry. Large particles were shown to bounce through the IPS with near 100% efficiency at any flow split. As particles become smaller, their separation efficiency decreases due to the increase of fluid influences. The smallest spheres tested showed significant loss in efficiency that is more than expected. These effects are important to understand for modeling and prediction of IPS operation and efficiency.

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