Boots – shoes – and leggings
Patent
1988-02-03
1989-07-25
Lastova, John R.
Boots, shoes, and leggings
364157, 137391, 137400, G05B 1300
Patent
active
048520535
ABSTRACT:
A method for controlling a system parameter based on controlling a setpoint for a process control variable includes measuring the rate of input to and output from a vessel. The difference between the input and output rates is determined to provide an expected rate of accumulation in the vessel. The actual rate of accumulation in the vessel is measured. The difference between the expected rate of accumulation and the actual rate of accumulation is determined to provide a bias term. A value for the setpoint for the process control variable is calculated by solving one of a material or energy balance equation which includes the bias term and a term representative of a predetermined time period during which the controlled parameter is to reach a desired value. The setpoint for the process control variable is then controlled based on the calculated setpoint value. An apparatus is disclosed for carrying out the disclosed method.
REFERENCES:
patent: 3394053 (1968-07-01), Shinskey
patent: 3601588 (1971-08-01), Bristol
patent: 4111218 (1978-09-01), Hobbs
patent: 4197576 (1980-04-01), Sanchez
patent: 4249908 (1981-02-01), Funk
patent: 4257105 (1981-03-01), Stewart et al.
patent: 4385362 (1983-05-01), Arcara
patent: 4551796 (1985-11-01), Singh
patent: 4562552 (1985-12-01), Miyaoka et al.
patent: 4570230 (1986-02-01), Wilson et al.
patent: 4578747 (1986-03-01), Hideg et al.
"Internal Model Control", C. E. Garcia and M. Morari, Ind. Eng. Chem. Process Des. DEv., 1982, vol. 21, pp. 308-323.
"Dual Composition Control in a C.sub.3 /C.sub.4 Splitter", R. V. Bartman, CEP, Sep. 1981, pp. 58-62.
Exxon Chemical Patents Inc.
Lastova John R.
LandOfFree
Material and energy balance reconciliation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Material and energy balance reconciliation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Material and energy balance reconciliation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2363847