There is also a 1.0 m diameter stirred tank equipped for sparging. In addition, there are specialized 0.39 m and 0.29 m tanks permanently devoted to aeration research. Laboratory tools specifically for aeration include equipment for measuring dissolved oxygen and bubble void-fraction probes. The tanks are housed in standard frames instrumented to measure impeller torque. There is wide range of other equipment and techniques that can be brought to bear on a particular problem.
Bubble trajectories influence gas absorption.
Bubble acoustics Bubble acoustics offers an experimental technique for measuring bubble sizes in the laboratory or the field. It can also improve scientific understanding of bubble dynamics. In molten metal processes, bubbles occur owing to entrainment, dissolved gases or sparging. Here, knowledge of the bubble size distribution would be an immediate advantage. Applications include pouring molten metals, void removal in die castings, and oxygen injection in steelmaking.