Modern production processes are characterized by a wide variety of products and, of course, great complexity.
For the processing of raw materials into final products should have a relatively large number of functionally different stages of processing. At each stage you need different types of energy, auxiliary materials, equipment, etc.
The development of a specific system has a specific objective. Such purpose for technical systems is creation of highly effective production, that is such on which make necessary production not only the necessary quantity and quality, but also economically expedient way with the minimum pollution of environment.
When designing a technological system should be aware of:
- new progressive directions of development of this technology as the problem of rational use of raw materials, energy, etc. Depends on them.
The next step is to determine the topology of the system and such parameters:
- incoming variables,
- technological regime in the elements of the system,
- technological flows, etc.
Input variables – the physical parameters of the input streams of raw materials, as well as the parameters of various physical and chemical effects of the environment that affect the process of functioning of the system. It can be pressure, temperature, concentration, etc.
Technological-degree of conversion of raw materials and component separation, the coefficient of the Issa-teploperenosa and so In.
Structural – geometric parameters of the units.
Process mode parameters in the system elements-temperature, pressure, activity of catalysts, etc.
Parameters of technological flows (they provide the system operation in a given mode) – the mass of raw materials, its temperature, pressure, concentration of matter in the flow, etc.