Three relatively simple mathematical models have been developed to estimate minimum reactor and radiation shield masses for liquid metal cooled reactors (LMR's), in-core thermionic reactors (TI's) and out-of-core thermionic reactors (OTR's). The approach was based on much of the methodology developed for the RSMASS model (Marshall 1986). The models use a combination of simple equations derived from reactor physics and other fundamental considerations along with tabulations of data from more detailed neutron and gamma transport theory computations. All three models vary basic design parameters within an allowed range to achieve a parameter choice which yields a minimum mass for the power level and operational time of interest. The impact of critical mass, fuel damage and thermal limitations are accounted for in the computations. Thermionic requirements are also accounted for in the thermionic reactor models. All major reactor component masses are estimated as well as instrumentation and control (Ia.C), boom and safety system mass. A new shield model was developed and incorporated into all three models. The new shield model is more accurate and simpler to use than the approach used in the original RSMASS model. The estimated reactor and shield masses agree with the mass predictions from detailed calculations within 16 percent for all three models.
RSMASS-D: reactor and shield mass minimization models
RSMASS-D: Massenminimierungsmodelle für Reaktor und Abschirmung
1991
6 Seiten, 1 Bild, 2 Tabellen, 6 Quellen
Aufsatz (Konferenz)
Englisch
Space reactor shield technology
Tema Archiv | 1988
|Engineering Index Backfile | 1958
|AIAA | 1963
|AIAA | 1963
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