Environmental Engineering Reference
In-Depth Information
the programs into DPU memory and workstations
is accomplished from the EWS/SS200 over the
Westnet II local network. Software for engineering
stations (EWS/SS200 and EWS/CIU207) supports
functioning of the SPDS.
The systems software includes: operating
memory iRMX; operating system MS-DOS;
operating system Solaris; protocol support driv-
ers; peripheral device drivers; drivers of interface
modules; Russification programs.
The display of information in video frames
is implemented according to the technological
hierarchical principle “from the general to the
particular.”
The technological process video frames are
separated into five levels of hierarchy. Know-how
in the display of general information comes pri-
marily from upper level video frames, on which
information is displayed in the form of polar
diagrams - polygons.
The video frame hierarchy includes:
• Determination of the condition of critical
safety functions;
•
Calculation
of
generalized
safety
parameters;
•
Calculation of
reactor power output
achieved;
• Determination of the number of working
turbine feedwater pumps;
• Power output balance;
• Core condition monitoring;
• Special calculations for the NPP unit;
• Reliable determination of heat carrier
temperatures;
• Determination of the number of working
loops;
• Radioactivity monitoring;
• Calculation of irst loop leakage;
• Mass balance;
• Monitoring the level in the pit;
•
Recording actuation of
the protection
system;
• Determination of constants for the NPP
unit;
• Determination of
•
Upper (First) Level Video Frames:
Unit
safety;
the
condition of
•
Second Level Video Frames:
General
state of the unit;
equipment;
• Monitoring the condition of the NPP unit
warm-up and cooling down;
• Reliable determination of NPP unit
parameters;
• Processing of neutron parameters;
• Monitoring parameters of state of the
containment;
•
Third Level Video Frames:
Efectiveness
of unit functions;
•
Fourth Level Video Frames:
State of the
unit systems;
•
Fifth Level Video Frames:
Sensor
readings.
•
Calculation of thermodynamic parameters
of water and steam.
The most general information on safety pa-
rameters of the generating unit is on upper level
video frames. The lower level video frames give
tehnological process information in detail.
The set of computer subsystem programs pro-
duces computations for execution of the following
main functions:
The calculations are also performed for the
following auxiliary functions:
• Analysis of redundant measurements;
•
Correction of low
rate and
level
parameters;
• Determination of the rate of change of
parameters;
• Averaging of parameters over time.
•
Calculation of parameters displayed on the
polygon-diagrams;
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