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Self-initialization module for the RELAP4/MOD7 program [electronic resource].

Published:
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1979.
Physical Description:
Pages: 12 : digital, PDF file
Additional Creators:
United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
An automated self-initialization option has been developed and implemented into the RELAP4/MOD7 computer code. With this new feature, pressurized water reactors or similar models may be initialized to steady state conditions with minimal user-supplied input data. Previously, the analyst (user) had to hand compute all pressures and temperatures in conjunction with several iterative computer runs. Two semi-independent functions, pressure balancing and thermal balancing, comprise the self-initialization module. The user supplies input data specifying a reference pressure and temperature and associated locations. Control volume pressures and temperatures are computed consistent with the nodalization, geometry, total power, and mass flow rates specified. Verification has been accomplished by performing transient calculations on system models and observing the persistence of stable operating conditions. Preparation of input data for the self-initialization module seldom requires more than several man-hours. Computing time required on a CDC 7600 computer to complete the self-initialization process is typically less than 30 seconds.
Report Numbers:
E 1.99:conf-790402-9
conf-790402-9
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
01/01/1979.
"conf-790402-9"
Computational methods in nuclear engineering, Williamsburg, VA, USA, 23 Apr 1979.
Burgess, C.H.; Johnsen, G.W.; Behling, S.R.
Idaho National Engineering Lab., Idaho Falls (USA)
Funding Information:
EY-76-C-07-1570
View MARC record | catkey: 14371568