A novel apparatus that is capable of dynamic flash evaporation and phase separation using centrifugal flow (i.e., using a Hydro-Cyclone Apparatus/HCA) is evaluated in this study. The objective of this study is to evaluate the performance of a novel phase separator apparatus that forms a stable air core at the center from a premixed air-water mixture. The air core is retrieved using a retrieval tube placed at the center of the test section. Experiments were performed by varying the inlet volume flow rates of air and water to determine the maximum separation efficiency and plot its variation as a function of inlet air and water flow rates. The data obtained from this study is used as a preliminary indicator of the anticipated range of separation efficiencies for the system during experiments involving phase change for the production of potable water from saline water for water remediation applications.