6 Myths of Process Performance

George Buckbee presented an interesting discussion on some frequently quoted myths:

The Myths

"¢ Myth 1: Tuning is Everything

"¢ Myth 2: Averages are More Important Than Dynamics

"¢ Myth 3: There Isn't Time to Look at Everything

"¢ Myth 4: Each Unit Operation is an Island

"¢ Myth 5: Analog Instruments Can't Deliver Diagnostics

"¢ Myth 6: You Can't Show the Value in Dollars and Cents

Myth 1 debunked:

"¢ Tuning is One Piece of the Puzzle

  • "¢ Equipment

  • "¢ Operations

  • "¢ Loop

  • "¢ Software Tools

    • "¢ Identify the Problems

"¢ Focus Your Efforts

Causes of Inefficiency

  • "¢ Process Upsets

  • "¢ Controls

  • "¢ Tuning

  • "¢ Loop Interaction

  • "¢ Equipment

  • "¢ Valve Stiction

  • "¢ Operator Response

  • "¢ Overload, Confusion

  • "¢ Right Information not Available

  • "¢ Setpoint Not at Optimum

  • George went methodically through each myth, debunking them.

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