ハニカム構造体を用いたナノバブル生成装置の設計とその性能

抄録

In recent years, nanobubbletechnology has drawn great attention due to their wide applications in many fields of science and technology, such as water treatment, biomedical engineering, and nanomaterials. Nanobubble technology is also used for seafood long term storage. The nitrogen nanobubble water circulation can be used to reduce the oxygen in water and slow the progressions of oxidation and spoilage. In previous study, a kind of honeycomb structure for high efficiency nanobubble generation has been investigated. In addition, thesmall-scale honeycomb structure is designed for the broader applications. Comparing with stainless steel, acrylic resin and titanium have good corrosion resisting property in various liquids including the sea water. Therefore, acrylic resin and titanium are considered in this study. In this paper, the honeycomb structure is optimized and improved. Combining experimental solutions and CFD analyses, the performance of the generator is studied. The strength of the honeycomb structure is also analyzed by FEM. The relationship between nanobubble generation efficiency and structure type is discussed.