NESC0590 INTEG/INSPEC
INTEG INSPEC, Accident Frequencies and Safety Analysis for Nuclear Power Plant
NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCE, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
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| Program name | Package id | Status | Status date |
|---|---|---|---|
| INTEG | NESC0590/01 | Tested | 01-SEP-1976 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NESC0590/01 | IBM 370 series | IBM 370 series |
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3. DESCRIPTION OF PROBLEM OR FUNCTION
These programs analyze the characteristics of a general model developed to represent the safety aspects of an operating nuclear reactor. These characteristics are the frequencies of incidents that are departures from the expected behavior of the reactor. Each incident is assumed to be preceded by a sequence of events starting at some initiating event. At each member in this sequence there may be functions such as safety circuits, and personnel operations that stop the sequence at that member. When mechanical devices fail they are assumed to remain inoperative until repaired. The model accounts for scheduled inspection and maintenance of all equipment in the system.
These programs analyze the characteristics of a general model developed to represent the safety aspects of an operating nuclear reactor. These characteristics are the frequencies of incidents that are departures from the expected behavior of the reactor. Each incident is assumed to be preceded by a sequence of events starting at some initiating event. At each member in this sequence there may be functions such as safety circuits, and personnel operations that stop the sequence at that member. When mechanical devices fail they are assumed to remain inoperative until repaired. The model accounts for scheduled inspection and maintenance of all equipment in the system.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
INSPEC is limited to subsystems with no more than 7 safety circuits. The transition matrix can be made up as desired so that any intercorrelations between failures of circuits can be accommodated. In INTEG, failure rates of safety circuits are restricted to independence.
INSPEC is limited to subsystems with no more than 7 safety circuits. The transition matrix can be made up as desired so that any intercorrelations between failures of circuits can be accommodated. In INTEG, failure rates of safety circuits are restricted to independence.
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6. TYPICAL RUNNING TIME
The INTEG sample problem containing five problems, each with 3,000 steps of trapezoidal integration and with an average of 4.6 safety circuits, requires a total CPU time of 2 seconds on an IBM360/195, while the INSPEC sample problem with three safety circuits runs for 500 transitions with an indicated CPU time less than 2 seconds.
The INTEG sample problem containing five problems, each with 3,000 steps of trapezoidal integration and with an average of 4.6 safety circuits, requires a total CPU time of 2 seconds on an IBM360/195, while the INSPEC sample problem with three safety circuits runs for 500 transitions with an indicated CPU time less than 2 seconds.
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NESC0590/01
| File name | File description | Records |
|---|---|---|
| NESC0590_01.001 | INTEG SOURCE PROGRAM (F4) EBCDIC | 143 |
| NESC0590_01.002 | INTEG SAMPLE PROBLEM INPUT DATA | 28 |
| NESC0590_01.003 | INTEG SAMPLE PROBLEM PRITED OUTPUT | 627 |
| NESC0590_01.004 | INSPEC SOURCE PROGRAM (F4) EBCDIC | 159 |
| NESC0590_01.005 | INSPEC SAMPLE PROBLEM INPUT DATA | 10 |
| NESC0590_01.006 | INSPEC SAMPLE PROBLEM PRINTED OUTPUT | 46 |
Keywords: Markov process, reactor operation, reactor safety, simulation.