Patent ID: 6918356
Filing Date: 2005-07-19
Classification: F22B

Abstract:
1. In a process having a plurality of input operators, each operator being independently variable over its own range of settings, and a plurality of process output parameters, each parameter having a range of acceptable values, a method for controlling the process such that a specified value for a primary process output parameter is achieved and all other process output parameter values are within their respective acceptability ranges, comprising the steps of: a) characterizing said process to produce a look-up characteristic table by determining empirically the operational relationships between said plurality of input operators and said plurality of output parameter values for combinations of said input operator settings resulting both in operation of the process and in output parameter values within said ranges of acceptable values; b) designating one of said process output parameters as a primary control parameter; c) providing a desired value of said designated primary control parameter as a process control setpoint; d) setting said input operators at a combination of respective settings as determined from said look-up table to cause said process to operate at a value of said designated control parameter approximating said process control setpoint.