Process management using component thermal-hydraulic function classes
- Woodridge, IL
- Downers Grove, IL
- Western Springs, IL
A process management expert system where following malfunctioning of a component, such as a pump, for determining system realignment procedures such as for by-passing the malfunctioning component with on-line speeds to maintain operation of the process at full or partial capacity or to provide safe shut down of the system while isolating the malfunctioning component. The expert system uses thermal-hydraulic function classes at the component level for analyzing unanticipated as well as anticipated component malfunctions to provide recommended sequences of operator actions. Each component is classified according to its thermal-hydraulic function, and the generic and component-specific characteristics for that function. Using the diagnosis of the malfunctioning component and its thermal hydraulic class, the expert system analysis is carried out using generic thermal-hydraulic first principles. One aspect of the invention employs a qualitative physics-based forward search directed primarily downstream from the malfunctioning component in combination with a subsequent backward search directed primarily upstream from the serviced component. Generic classes of components are defined in the knowledge base according to the three thermal-hydraulic functions of mass, momentum and energy transfer and are used to determine possible realignment of component configurations in response to thermal-hydraulic function imbalance caused by the malfunctioning component. Each realignment to a new configuration produces the accompanying sequence of recommended operator actions. All possible new configurations are examined and a prioritized list of acceptable solutions is produced.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 5930315
- OSTI ID:
- 872416
- Country of Publication:
- United States
- Language:
- English
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Process management using component thermal-hydraulic function classes
A first-principles generic methodology for representing the knowledge base of a process diagnostic expert system
Related Subjects
management
component
thermal-hydraulic
function
expert
following
malfunctioning
pump
determining
realignment
procedures
by-passing
on-line
speeds
maintain
operation
partial
capacity
provide
safe
shut
isolating
level
analyzing
unanticipated
anticipated
malfunctions
recommended
sequences
operator
actions
classified
according
generic
component-specific
characteristics
diagnosis
thermal
hydraulic
analysis
carried
principles
aspect
employs
qualitative
physics-based
forward
directed
primarily
downstream
combination
subsequent
backward
upstream
serviced
components
defined
knowledge
base
functions
mass
momentum
energy
transfer
determine
configurations
response
imbalance
caused
configuration
produces
accompanying
sequence
examined
prioritized
list
acceptable
solutions
produced
knowledge base
energy transfer
acceptable solution
configuration produces
thermal hydraulic
alignment procedures
process management
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