Faster-than-real-time simulation of nuclear reactor accidents: the TRAC-NPA code Page: 9 of 11
This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided to UNT Digital Library by the UNT Libraries Government Documents Department.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
-8-
I lin'd ;i r. J F.a] I i r.g - f : lr quench fronts. The heat trar.sler I rom the luel rods and
other "ivster s I nu t u rev is calculated usiri1 I ! ow-reg ime-dt penJer.l heu t -1 runs I'e ;
mell k icr.ts I'WaireJ I rom a gene ra I 1 Zed hi': ! : r.g iurve based it. Iolj I
c iT.d it 1 OT.s .
TRAC is completely nodular bv physical component. The c omponent s ir a
calculation are specified through input data: available c ompor.e nt s allow the
user to node 1 virtually ar.v PVR design or experimental font'i guru t i on. This
gives TRAC great versatility in the possible large ol applications. TRAC
con.porert nodules kurrertlv include accumulators, pipes, plena, pressur i ze r s.
pa1 team generators, tees, turbines, valves, and vessels with associated
internals (downcomer, lower plenum, core, upper plenum, etc. There is also a
general capability for modeling p1 ant-contro1 systems, trips, and operator
interact u'ns.
TRAC" also is modular by function: that is. the major aspects of the
ca 1 c u 1 a t i or.s are performed in separate modules. lor example, the basic one- or
three-dimensional hvdrodyr.; mics solution algorithm, the wa 1 1 - t empe ra t ure field
solution algorithm, the heat-trans1cr-coe1ficiert selection, and other functions
are performed in separate sets of routines that are accesseJ bv the appropriate
component modules.
iv. tiii: nucllar plant analy/i-k
The development ol a aster running ver«ioi ol TRAl car have signilicar.t
economic value s ir.pl v because of TRAC s widespread use. Ivec a UK improvement
in run time car save hundreds of thousands of dollars per vear ir computer
costs. However, there are more important consequences ol the fact that TRAC car.
lie rur. in real-time. lor the first time, interactive lie s t - e s t i ma t e engineering
simulation Will he possible.
Ve have coupled TK.AC-NP.A to ar. interactive graphics executive to create a
Nuclear Plant Analyzer l NIVA).' A block diagram ol the NPA software structure is
shown i r. I:ig. 1. The NPA provides interactive control of TRAC together with
s. lec table eo 1 or - “c r e er. display of results at rur time or in playback mode.
Display choices include a schematic with a color-coded representation of a
selected system, variable presented or. a TRAt -nodir.g diagram and a set of
time -his t o rv ( x-v > plots.
Upcoming Pages
Here’s what’s next.
Search Inside
This article can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Article.
Woodruff, S.B. Faster-than-real-time simulation of nuclear reactor accidents: the TRAC-NPA code, article, April 1, 1985; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1085692/m1/9/?rotate=90: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.