Comparison of mist generators between twin fluid water suction type and single fluid swirl type

Sadatomi and Kawahara invented a multi-fluids mixer which is categorized as a twin-fluid type but have a merit of water suction type. The mixer is usable to generate micro- bubbles, etc. besides mists, fine droplets. In the mists generation, pressurized air alone is supplied because water can be sucked automatically by a negative pressure arisen downstream from the orifice in the mixer. The objective of the present study is to compare the performance between the above twin-fluid type atomizer and a common single-fluid swirl type atomizer studied in the present experiments. The comparison results showed that the twin-fluid type was superior to the singe-swirl type in the performance of CO2 adsorption by the mists. The CO2 adsorption rate by the twin-fluid type was about twice. Such results on the experiments and the comparisons are described in this paper. Keywords—atomizer, twin- and single-fluid types, hydraulic performance, CO2 adsorption