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Computer control of process - PowerPoint PPT Presentation

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Computer control of process
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  1. Computer control of process Computer aided process control

  2. AIM • Development of Computer Aided Systems for Chemical and Biochemical Product-Process Modelling/Simulation, Synthesis, Design, Analysis and Control/Operation for Chemical, Petrochemical, Pharmaceutical, Agrochemical, Food and Biochemical Industries.

  3. Quality build-in computer aided process control is very important for the electronics industry to maintain a competitive advantage. Its purpose is to maintain and achieve the target of six sigma quality level

  4. Introduction to process control • Some examples of process control • Process dynamics • Degrees of freedoms of process • PROCESS CONTROL OBJECTIVES

  5. Basics of computer aided process control • Process control computer hardware&soft –ware • Design of computer control systems • Advanced stages of computer control systems

  6. Example of process

  7. Heat exchanger

  8. Process control objectives

  9. Demands on control systems • 1.High reliability& availability • 2.Fast trouble shooting • 3. Simple operation • 4.Easy configurable • 5.High accuracy&reproducibility • 6.Low cabling cost • 7.Availablity of process computers • 8.Flexibility

  10. Historic development

  11. Economics of computer aided process control • Till the advent of Micropecessor--- most expensive • Today---1.Low cost • 2.Large complexity • 3.High returns • Benefits: • Repeatability in product quality • Frequent changes in product specifications • Increases productivity of the plant • Understanding of the behaviour of process • Reduction in dead time of batch processing process

  12. RECENT TRENDS

  13. Computer aided hot air blower

  14. Distributed digital control system

  15. Total plant hierarchical control system