Azmi Suna Kaya

44815670, Nov 6, 1984

Mar 1, 1982

6/353262

Azmi Kaya - Akron OH
Michael P. Lukas - Eastlake OH

The Babcock & Wilcox Company - New Orleans LA

G05B 1302

364157

An adaptive control for a process is disclosed which utilizes a process parameter calculator made up of simple function blocks which generate a plurality of process parameters, and a tuning parameter calculator, also made up of simple function blocks, for calculating tuning parameters from the process parameters. The process parameter calculator is provided with values for various disturbances, a set point, a control output from a process controller and process structure data including process sensitivity and nominal operating data. From these values, the process parameters are determined. The tuning parameter calculator is provided in addition to the process parameters, with performance parameters and design function for generating tuning parameters that are applied to the controller for modifying the control output in response thereto.

44121369, Oct 25, 1983

Dec 15, 1981

6/330995

Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Falls OH
Thomas J. Scheib - Chesterland OH

The Babcock & Wilcox Company - New Orleans LA

G06G 7635
H02J 346

290 40R

A load control for a system comprised of a plurality of energy converters wherein the energy output of all converters is adjusted in parallel to maintain the total rate of energy output from the system equal to demand and wherein during steady-state conditions the rate of energy conversion for that converter having the lowest incremental cost is increased and simultaneously the rate of energy conversion for that converter having the highest incremental cost is decreased a like amount.

50329774, Jul 16, 1991

Dec 7, 1989

7/430855

Jeffrey A. Beller - Willoughby OH
Ralph K. Johnson - Highland Heights OH
Roger Kammerer - Mercer Island WA
Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Fall OH

Elsag International B.V. - Amsterdam

G06F 1546
D21C 712

364165

A method and apparatus for controlling the delignification process by monitoring and minimizing variations in the Kappa Number and the digester residual chemical concentration. A parameter representative of the H factor for the delignification process and a measurement of the initial chemical concentration are utilized ot produce signals representative of the actual Kappa Number and the residual acid concentration in the digerter. The expected perturbations in Kappa Number and the residual chemical concentration are compared with target values for same to produce estimated errors due to mismatch which are compared with actual measured errors for these parameters to produce compensated control errors for same. The compensated control errors are utilized to modify the target values for the H factor and the initial chemical concentation by modifiying the chemical charge and the time versus temperature operating parameters of the digestings to regulate pulp Kappa number and spent cooking liquor residual chemical concentrations of the process.

44356501, Mar 6, 1984

Dec 15, 1981

6/331060

Donald J. Dziubakowski - Seven Hills OH
Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Falls OH
Theodore N. Matsko - Chesterland OH
William H. Moss - Willoughby OH
Thomas J. Scheib - Chesterland OH

The Babcock & Wilcox Company - New Orleans LA

H02J 300

307 32

A load control for a system comprised of a plurality of energy converters wherein a System Control Signal proportional to system load is developed and utilized to simultaneously adjust the rate of energy conversion of each of the converters in parallel in accordance with changes in system load. The rate of energy conversion for each converter, while operating under stead-state conditions for a predetermined period of time, is readjusted until its actual incremental cost of production is equal to a desired incremental cost.

50329766, Jul 16, 1991

Dec 7, 1989

7/430847

Jeffrey A. Beller - Willoughby OH
Ralph K. Johnson - Highland Heights OH
Roger Kammerer - Mercer Island WA
Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Falls OH

Elsag International B.V. - Amsterdam

G06F 1546
D21C 712

364151

A method and apparatus for controlling the delignification process by monitoring and minimizing variations in the Kappa Number and the digester residual chemical concentration. A parameter representative of the H factor for the delignification process and a measurement of the initial chemical concentration are utilized to produce signals representative of the actual Kappa Number and the residual acid concentration in the digester. The expected perturbations in Kappa Number and the residual chemical concentration are compared with target values for same to produce estimated errors due to mismatch which are compared with actual measured errors for these parameters to produce compensated control errors for same. The compensated control errors are utilized to modify the target values for the H factor and the initial chemical concentration by modifying the chemical charge and the time versus temperature operating parameters of the digestings to regulate pulp Kappa number and spent cooking liquor residual chemical concentrations of the process.

46850724, Aug 4, 1987

Jan 2, 1985

6/688213

Ralph K. Johnson - Highland Heights OH
Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Falls OH
William H. Moss - Kingwood TX

The Babcock & Wilcox Company - New Orleans LA

G06F 1546
G06F 1536
F23N 518

364551

A system for the automatic and continuous determination of the efficiency of a fossil fuel-fired vapor generator for utilization by an automatic load control (88) to control the distribution of the system load among a plurality of generators, wherein various heat losses from various combustion sources are separately determined, the individual losses summed (80) and subtracted (86) from 100 percent to obtain a measure of the vapor generator efficiency.

45746265, Mar 11, 1986

Mar 23, 1984

6/592499

Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Falls OH

The Babcock & Wilcox Company - New Orleans LA

G01K 1700
G01N 700
G01N 900

73112

An enthalpy measuring arrangement for measuring the heat content of a substance which may in the liquid phase, vapor phase or a mixed phase of liquid and vapor, comprises a first enthalpy calculating module for calculating the enthalpy of the substance when in a two-phase condition utilizing a plurality of discrete function blocks. The specific volumes of the overall mixture is calculated using a density transmitter which measures the density of the substance. Tables are utilized to obtain the specific volumes of the gas and vapor part of the substance on the basis of a measured temperature for the substance. These values are in turn used to obtain a quality value which is multiplied by a value representing the difference between the enthalpys of the vapor and liquid components of the substance to obtain the overall enthalpy of the mixture. Another module with a plurality of function blocks generates the enthalpy of the substance when it is superheated or entirely in the vapor phase. A selector module is connected to the mixed and vapor phase calculating modules to determine which of the modules should be utilized and to calculate the overall enthalpy of the substance regardless of its phase.

43039820, Dec 1, 1981

Aug 9, 1979

6/065020

Azmi Kaya - Akron OH
Marion A. Keyes - Chagrin Falls OH
Michael P. Lukas - Eastlake OH

The Babcock & Wilcox Company - New Orleans LA

G01K 1706

364550

A system for the measurement and control of the rate of BTU input to a gas burner wherein a signal is generated corresponding to the square root of the product of the burner inlet pressure multiplied by the in-situ density olf the gas, which, multiplied by a signal of constant value, corresponds to the mass flow of gas to the burner. This signal is then multiplied by a second signal of constant value to generate a signal corresponding to the rate of BTU input to the burner and which is compared with a set point signal to regulate the mass flow of gas to the burner as required to maintain the rate of BTU input to the burner at set point.