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This article describes the design of a simple forecasting system and its practical application to predict the sporadic needs for a spare part. The article shows new approach already implemented in the special servicing and production company in Slovakia and its results during a short period of performance after its implementation. Such a proposed model can be a part of the purchase planning of spare...
Diffuse combustion is one of the basic mode of the heat generation. Solution of the diffuse combustion problems very tightly connected with specific conditions of its utilization. Insufficient regarding of the specific conditions can significantly decrease their performance (in comparison by their technical possibility). On the other hand, by proper solutions of diffuse combustion, activity of thermal...
In the last years new technologies in the area of granular materials thermal treatment have been developed. Basic improvement was achieved in significant increasing of heat exchange area, heat distribution and in the hydrodynamics. Development and operation of this thermal apparatus is based on physical and mathematical modelling, which can significantly contribute to acquire required critical knowledge...
For process control two basic approaches are used: outside - in approach and inside - out approach. Outside-in approach is user oriented. Process is forced to satisfy user objectives. Inside-out approach is process oriented. At this process driven approach process has dominant position and conditions have been created to realize it by the most natural way. Process oriented approach is based on knowing...
Mathematical models serve as a basic tool for information gaining about technological objects and processes. Suitable mathematical model, which can be effectively used as a integral part of the process control system, requires not only adequacy to the modeled objects but also adequacy of the computing time to the real time, because one of the main criteria of the optimal model is its time saving....
A new advanced monitoring system for granular materials thermal treatment was developed. This system underpinned with a mathematical model of the process consists of tree operational layers: basic control, process control and supervisory control level. Monitoring system is made up of instrumentation, mathematical model, and visualization layers. Instrumentation level was enriched by new types of sensors...
Process control is one of the principal approaches to increase process quality and performance. Model based control system is based on real time mathematical model, which can be used at individual levels of the process hierarchy in the on line real time control system. The model is used for interpretation, planning, and execution of the tasks through the autonomous controllers. For the outlining tasks,...
Rotary furnace simulation model was used for a model-based control on behalf of the on-line interactive communication. Developed model is used for the support of direct and supervisory control. On the direct control level model is used for process observation and process prediction. On the supervisory level model is used for process planning, and execution of the task segments through the autonomous...
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