Abstract
As the urgency of current energy-saving and discharge reduction task and difficult of related advance technology in breaking through, a new energy flow network system model was built based on modelling elements and rules of hybrid Petri nets to adapt to the system requirements through analyzing the basis features of energy flow network, and meet the demand of developing energy flow network efficiency of iron and steel enterprises. The dynamic rules and behaviour mechanism of energy flow network system for iron and steel enterprises were studied by utilizing the model combined with the historical data, the results show that the modelling method is effective and satisfactory, and provide guidance for optimizing the energy system and exploring the relation of material flow and energy flow.
Highlights
Scholars and entrepreneurs at home and abroad have done a great deal of work on energy saving of iron and steel enterprises
Professor Cai built the energy saving decision making model of iron and steel enterprises by using the large system optimization method, and realized the optimization of the production system of Anshan Iron and Steel Group and get a more reasonable production plan (Cai,2012).The nature of production process is the flow process of material flow driven by energy flow in iron and steel enterprises, Academician Yin studied the essence and law of iron and steel production process from microcosmic to macroscopic aspects, and provided a method and breakthrough point for energy saving and consumption reduction of iron and steel system(Yin,1997;2000)
Based on the inherent characteristics of materials flow and energy flow networks system in iron and steel enterprises, this paper uses hybrid Petri nets to realize the modelling of energy flow networks system based on the modelling methods and theory of hybrid Petri nets
Summary
Scholars and entrepreneurs at home and abroad have done a great deal of work on energy saving of iron and steel enterprises. The above modeling method either cannot optimize the whole energy system by taking a specific equipment and specific process of steel enterprise as the research object, or cannot effectively reflect the characteristics of the dynamic and orderly and compact system of the actual energy system in iron and steel enterprises by taking the production system as the object and maximizing the energy saving of the system as a goal. In this paper, based on the idea of network of energy flow, we discuss the building methodology of energy flow network by analyzing the distribution and input/output characteristics of the complex energy flow system in iron and steel enterprises, and build the energy flow network model of three links including energy use, energy recovery and energy conversion in the whole process based on hybrid Petri nets. Combined with the historical data, the dynamic energy network system model for iron and steel enterprises is carried out to verify the correctness and effectiveness of the energy flow hybrid Petri nets model(EFHPNM),and lay a solid foundation for achieving the dynamic, efficient and orderly operation of the enterprise energy system
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