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Title: APPLICATION OF SNAP 2 TO MANNED ORBITAL SPACE STATIONS

Abstract

The results of a study of the installation and operational characteristics of a SNAP reactor system integrated with a manned space station are presented. The reference system selected was an 11 kw(e) version of a SNAP 2 system employing multiple power conversion units coupled to a single reactor source. Of prime importance is the reactor radiation shield required for the manned system and the use of design features which minimize the shield weight. The weight of the radiation shield is highly dependent upon the geometrical configuration of the space station and the reactor since shadow'' shielding of the manned compartments is required for minimum weight systems. The installation and shielding requirements of the 11 kw(e) system were considered for two types of space station configurations; one was a 10 ft dia cylindrical station with a reactor separation distance of 50 ft and the other a 150 ft dia toroidal station with the reactor located in the hub. The weight of the power system installed in the cylindrical space station was about 9000 lb of which 6000 lb was required for shielding. The weight of the system for a toroidal station was approximates 25,000 lbs of which 20,000 lbs was requiredmore » for shielding. However, these weights are relatively insensitive to power level and doubling or tripling the power output will only increase these weights by a small percentage. In addition, the designs developed for these two concepts permit the replacement of the reactor and power conversion system with the radiation shields becoming essentially a permanent part of the space station. Hence the large weight penalty associated with the reactor shield only has to be incurred once during the life of the space station. Because of the dominance of the reactor shield weights for manned systems, parametric curves of shielding weight are presented to enable the space vehicle designer to estimate nuclear power system weights for configurations other than those selected in this report. (auth)« less

Authors:
Publication Date:
Research Org.:
Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
Sponsoring Org.:
USDOE
OSTI Identifier:
4706177
Report Number(s):
AI-7950
NSA Number:
NSA-17-024724
Resource Type:
Technical Report
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
SPACE APPLICATIONS AND TECHNOLOGY; CONFIGURATION; CONVERSION; CYLINDERS; DIAGRAMS; PERSONNEL; PLANNING; POWER; POWER PLANTS; SHIELDING; SNAP-2 SERIES; SPACE VEHICLES; TORUS; WEIGHT; NESDPS Office of Nuclear Energy Space and Defense Power Systems

Citation Formats

Rosenburg, H.N. ed. APPLICATION OF SNAP 2 TO MANNED ORBITAL SPACE STATIONS. United States: N. p., 1962. Web. doi:10.2172/4706177.
Rosenburg, H.N. ed. APPLICATION OF SNAP 2 TO MANNED ORBITAL SPACE STATIONS. United States. doi:10.2172/4706177.
Rosenburg, H.N. ed. Sun . "APPLICATION OF SNAP 2 TO MANNED ORBITAL SPACE STATIONS". United States. doi:10.2172/4706177. https://www.osti.gov/servlets/purl/4706177.
@article{osti_4706177,
title = {APPLICATION OF SNAP 2 TO MANNED ORBITAL SPACE STATIONS},
author = {Rosenburg, H.N. ed.},
abstractNote = {The results of a study of the installation and operational characteristics of a SNAP reactor system integrated with a manned space station are presented. The reference system selected was an 11 kw(e) version of a SNAP 2 system employing multiple power conversion units coupled to a single reactor source. Of prime importance is the reactor radiation shield required for the manned system and the use of design features which minimize the shield weight. The weight of the radiation shield is highly dependent upon the geometrical configuration of the space station and the reactor since shadow'' shielding of the manned compartments is required for minimum weight systems. The installation and shielding requirements of the 11 kw(e) system were considered for two types of space station configurations; one was a 10 ft dia cylindrical station with a reactor separation distance of 50 ft and the other a 150 ft dia toroidal station with the reactor located in the hub. The weight of the power system installed in the cylindrical space station was about 9000 lb of which 6000 lb was required for shielding. The weight of the system for a toroidal station was approximates 25,000 lbs of which 20,000 lbs was required for shielding. However, these weights are relatively insensitive to power level and doubling or tripling the power output will only increase these weights by a small percentage. In addition, the designs developed for these two concepts permit the replacement of the reactor and power conversion system with the radiation shields becoming essentially a permanent part of the space station. Hence the large weight penalty associated with the reactor shield only has to be incurred once during the life of the space station. Because of the dominance of the reactor shield weights for manned systems, parametric curves of shielding weight are presented to enable the space vehicle designer to estimate nuclear power system weights for configurations other than those selected in this report. (auth)},
doi = {10.2172/4706177},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {12}
}