Real-time analysis of power plant thermohydraulic phenomena
US5619433A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1992 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Oct 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B25/025
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and computer tool apparatus for determining the final state parameters of a power plant thermohydraulic system in which the thermohydraulic system is represented as a plurality of nodes having a flow regime map monitoring the thermodynamic system parameters. An equation set is provided including a first plurality of field equations including only one momentum equation, a drift equation for correlating the field equations with their variables, constitutive correlations and drift flux coefficients determined in response to the flow regime map so that there is closure between the field equations and the drift flux equation, and state equations for dependent thermodynamic variables. Final state parameters for the monitored thermohydraulic system are determined by solving the equation set in response to the sensed parameters by a momentum method and pressure search method, using a constant time step in the calculations. Real time methodologies used in the simulation field are combined with engineering analysis methodologies to provide the method and apparatus for engineering analysis and simulation of power plant thermohydraulic phenomena in a real-time environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.