Affiliation:
1. Department of Life Science and Materials Engineering Nagoya Institute of Technology Nagoya‐shi Japan
2. Nippon Sosey Kogyo Co., Ltd. Nagoya‐shi Japan
3. Department of Bio‐Chemical Engineering Dongyang University Kyungbuk South Korea
Abstract
AbstractThe axial flow in the vessel was the most critical flow under the laminar region, where the Reynolds number was less than 10. The most popular impeller which generates the axial flow is a helical ribbon impeller, but the production cost is high. By combining some pitched blade impellers, authors developed a new impeller, the production cost is lower than that of the helical ribbon. The mixing performance was investigated in laminar region. The new impeller had the same mixing performance as a helical ribbon. The partial helical ribbon type has a down flow that originates from two locations and intersects twice near the mixing shaft, and the four‐stage pitched paddle type has two cylindrical down flows. AM impeller is not affected by the shaft, and it is considered to exhibit high mixing performance. The phase angle of the blades caused these characteristics of down flows of the AM impeller.
Reference15 articles.
1. Power Correlations and Mixing Patterns of Several Large Paddle Impellers with Dished Bottoms
2. A Study on the Mixing of High-viscosity Liquid
3. SPXFLOW Philadelphia Mixer (Counterflow impeller non‐newtonian/high viscosity).https://www.spxflow.com/philadelphia/products/non-newtonian-high-viscosity/(accessed: June 1 2023)
4. SPCFLOW Lightnin (A620 counter flow impeller).https://www.spxflow.com/lightnin/products/a620‐counter‐flow‐impeller/(accessed: June 1 2023)
5. Mixing Performance of LR500 Impeller for Highly Viscous Fluid