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Modeling A Four Tank Air-Flow System

Modeling A Four Tank Air-Flow System. Justin Miles ECHE 499 Instructor Dr. Gatzke. Process Controls Theory. Control systems are present in every industrial process Control systems are the “brain” of the plant Execute the vast majority of all required actions in a plant

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Modeling A Four Tank Air-Flow System

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  1. Modeling A Four Tank Air-Flow System Justin Miles ECHE 499 Instructor Dr. Gatzke

  2. Process Controls Theory • Control systems are present in every industrial process • Control systems are the “brain” of the plant • Execute the vast majority of all required actions in a plant • Opening and closing valves • Running HVAC system • Regulate tank filling • Running reactors

  3. Process Controls Theory (cont.) • Control systems ensure safe plant environment • Regulate temperature & pressure to prevent explosions • Prevent overfilling of tanks • Simulation models used to test control systems • Ensures control system will function properly • Prevents need of “tweeking” during start-up of plants • Saves money

  4. Research • Developing a process simulation model for a dynamic air-flow system • Will be using MATLAB/Simulink to create and test a mathematical model of the system • Mathematical model should accurately predict experimental pressure in each of the four tanks

  5. Pictures of the System

  6. System Diagram

  7. Pictures of the System

  8. Details of the Model • Model will take into account • incoming pressure • valve positions • system disturbances • Leaks • variations in atmospheric pressure • Model will consist of four high order differential equations based on undergrad fluid mechanics ( ECHE 320)

  9. System Diagram

  10. Diagram of One Tank System

  11. Simulink Model

  12. Applications • Use simulation model to test the capabilities of experimental controller • Test to ensure controller works properly • Will it overshoot/undershoot its set point? • See how quickly controller corrects for disturbances on system • Model will be used as a hands-on tutorial for future undergrads in ECHE 550 • Calculate process gains • Calculate time constants • Develop process models

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