There is no universal equation that will enable us to calculate wear on impellers. However, the main factors that influence wear can be defined (eg impeller tip speed). There are different means available to increase the life-time of impellers. One of them is to improve the geometry of the flat blade disk turbines that are, typically, used in POX applications. Lab testing and CFD simulations help to get a deeper insight into wear patterns on flat blade disk turbines and its possible variants. These showed that it is possible to design a disk turbine with reduced wear - meaning increased impeller life-time. Using this improved impeller type, in combination with a coating of the impeller, will maximize the life-time of the impeller. Where wear patterns are localized, partial coating of impellers might be an option. Test work at EKATO's Technical Center will continue in order to get further insight into wear or abrasion phenomena. In addition it is desireable to establish more chemical resistance data for different coatings measured under production conditions.
展开▼
