US3914795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid distribution network and steam generators and method for nuclear power plant training simulator
Assignee: Westinghouse Electric Corp
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Filing: 1973-02-23
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Granted: 1975-10-21
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Expires: 1993-02-23
Abstract
Abstract A training simulator for the real-time dynamic operation of a nuclear power plant utilizes apparatus that includes control consoles having manual and automatic devices corresponding to simulated plant components and indicating devices for monitoring physical values in the simulated plant. A digital computer configuration is connected to the control consoles to calculate the dynamic real-time simulated operation of the plant in accordance with the simulated plant components to provide output data including data for operating the control console indicating devices. In the method and system for simulating a fluid distribution network of the power plant, such as that which includes, for example, a main steam system which distributes steam from steam generators to high pressure turbine steam reheaters, steam dump valves, and feedwater heaters, the simultaneous solution of linearized non-linear algebraic equations is used to calculate all the flows throughout the simulated system. A plurality of parallel connected steam generators that supply steam to the system are simulated individually, and include the simulation of shrink-swell characteristics.
Inventors
- 👤 William H Alliston
- 👤 Steven J Johnson
- 👤 Boris A Mutafelija
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:07
CPC Classifications
G; G09; G09B; G09B9/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
163 words
An automated training simulator for the real-time dynamic operation of a power plant; comprising a plurality of command devices corresponding to representative fluid control actuating devices of a representative fluid distribution system; means responsive to the operation of the command devices to generate an input signal relating to the operation of each representative fluid control device; calculating means including sequence controlling means having the following components a. means governed by each input signal to generate a data value relating to a linear admittance for each representative fluid control device in accordance with data values relating to flow and pressure for spaced locations of the representative fluid system, b. means governed by data values including the generated linear admittance data values to generate data values relating to flow and pressure for each said spaced location of the representative fluid system; and indicating devices responsive to the generated data values relating to flow and pressure to monitor the physical values in the representative fluid system.
Claim 2
Dependent Claim
163 words
An automated training simulator for the real-time dynamic operation of a power plant; comprising a plurality of command devices corresponding to representative fluid control actuating devices of a representative fluid distribution system; means responsive to the operation of the command devices to generate an input signal relating to the operation of each representative fluid control device; calculating means including sequence controlling means having the following components a. means governed by each input signal to generate a data value relating to a linear admittance for each representative fluid control device in accordance with data values relating to flow and pressure for spaced locations of the representative fluid system, b. means governed by data values including the generated linear admittance data values to generate data values relating to flow and pressure for each said spaced location of the representative fluid system; and indicating devices responsive to the generated data values relating to flow and pressure to monitor the physical values in the representative fluid system.
Claim 3
Dependent Claim
58 words
An automated training simulator according to claim 1 wherein the sequence controlling means generates said data values repetitively at fixed time intervals; and the generated data values relating to flows and pressures generated during one of said fixed time intervals are in accordance with the data values relating to linear admittance generated during the preceding fixed time interval.
Claim 4
Dependent Claim
20 words
An automated training simulator according to claim 2 wherein the calculating means is structured in a programmed digital computer means.
Claim 5
Dependent Claim
62 words
An automated training simulator according to claim 1 wherein each pressure data value is generated in accordance with a data value relating to temperature and enthalpy, each flow data value is generated in accordance with the generated pressure daTa value, and the calculating means includes means to generate the temperature and enthalpy data values in accordance with an instantaneous energy balance equation.
Claim 6
Dependent Claim
20 words
An automated training simulator according to claim 4 wherein each data value is generated in a programmed digital computer means.
Claim 7
Dependent Claim
71 words
An automated training simulator according to claim 1 wherein the representative fluid distribution system includes a representative pump; and the sequence controlling means further includes (a) means governed by the input signals to generate data values relating to pump flow and pump speed, (b) means to generate data values relating to pump shut-off head pressure and internal admittance in accordance with the data values relating to pump speed and pump flow.
Claim 8
Dependent Claim
147 words
An automated training simulator according to claim 6 wherein the representative fluid distribution system includes a representative steam generator; and the sequence controlling means further includes a. means governed by the data value relating to flow to generate a data value relating to steam generator pressure, b. means governed by data values relating to steam flow and water mass to generate a data value relating to the proportion of steam generator water and steam mass, c. means to generate a data value relating to steam generator total volume water and steam mixture in accordance with the data value relating to mass, d. means to generate a data value relating to steam generator water level in accordance with the data value relating to steam generator volume; and indicating means governed by the steam generator water level data value to monitor the water level of the representative steam generator.
Claim 9
Dependent Claim
42 words
An automated training simulator according to claim 7, further comprising circuit means operative to delay the generation of the data values relating to volume for a predetermined time interval, whereby the indicating means monitors the shrink-swell characteristics of generator steam water volume.
Claim 10
Dependent Claim
20 words
An automated training simulator according to claim 7 wherein the calculating means is structured in a programmed digital computer means.
Claim 11
Dependent Claim
20 words
An automated training simulator according to claim 6 wherein the calculating means is structured in a programmed digital computer means.
Claim 12
Dependent Claim
20 words
An automated training simulator according to claim 1 wherein the calculating means is structured in a programmed digital computer means.
Claim 13
Dependent Claim
187 words
An automated training simulator for the real-time dynamic operation of a power plant; comprising a plurality of command devices corresponding to representative fluid control actuating devices of a representative fluid distribution system; means responsive to the operation of each command device to generate an input signal representative of the operation of a respective representative fluid control device; calculating means to generate data values repetitively during successive time intervals, said calculating means including sequence controlling means having the following components a. means to store each of the generated data values including data values relating to flow, pressure and linear admittance, b. means to generate during each said time interval data values relating to flow and pressure in accordance with the stored generated data value relating to linear admittance, c. means governed by said input signal to generate during each said time interval a data value relating to a linear admittance in accordance with data values including the stored data values relating to flow and pressure; and indicating devices governed by the generated data values relating to flow and pressure to monitor the operation of the representative fluid system.
Claim 14
Dependent Claim
187 words
An automated training simulator for the real-time dynamic operation of a power plant; comprising a plurality of command devices corresponding to representative fluid control actuating devices of a representative fluid distribution system; means responsive to the operation of each command device to generate an input signal representative of the operation of a respective representative fluid control device; calculating means to generate data values repetitively during successive time intervals, said calculating means including sequence controlling means having the following components a. means to store each of the generated data values including data values relating to flow, pressure and linear admittance, b. means to generate during each said time interval data values relating to flow and pressure in accordance with the stored generated data value relating to linear admittance, c. means governed by said input signal to generate during each said time interval a data value relating to a linear admittance in accordance with data values including the stored data values relating to flow and pressure; and indicating devices governed by the generated data values relating to flow and pressure to monitor the operation of the representative fluid system.
Claim 15
Dependent Claim
37 words
An automated training simulator according to claim 12 wherein the data value relating to admittance is generated in accordance with data values relating to a maximum flow coefficient value, a density constant and a unit conversion constant.
Claim 16
Dependent Claim
26 words
An automated Training simulator according to claim 13 wherein the data value relating to temperature is generated in accordance with data values relating to saturated conditions.
Claim 17
Dependent Claim
20 words
An automated training simulator according to claim 14 wherein each data value is generated in a programmed digital computer means.
Claim 18
Dependent Claim
20 words
An automated training simulator according to claim 13 wherein each data value is generated in a programmed digital computer means.
Claim 19
Dependent Claim
119 words
An automated training simulator according to claim 12 wherein the representative fluid distribution system corresponds to a main steam system having a plurality of representative steam generators for conducting steam to a representative common header said sequence controlling means further including a. means to generate a data value relating to steam pressure for each representative steam generator in accordance with data values relating to enthalpy and temperature, b. means to generate data values relating to enthalpy and temperature for each representative steam generator in accordance with data values relating to an instantaneous energy balance, and c. means to generate a data value relating to flow for each representative steam generator in accordance with the data value relating to pressure.
Claim 20
Dependent Claim
20 words
An automated training simulator according to claim 17 wherein the calculating means is structured in a programmed digital computer means.
Claim 21
Dependent Claim
20 words
An automated training simulator according to claim 12 wherein the calculating means is structured in a programmed digital computer means.
References Cited (Backward Citations)
US3061945A
Cited
US3237318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |