No abstract

No abstract

No abstract

An brief resume of the operation of the Nuclear Safety Information Center with emphas i s on those functions whi ch const i tute evaluation or compression of technical information was presented . The computer i zation of the center ' s information store and the several information retrieval programs includes some evaluation . However, i n addit i on to expediting searches of categorized information, the use of computers is des i rable in freeing technical personnel for more productive uses as in the preparation of technical review art i cles and state-of-the-art reports . A "compression" ratio greater than 100 is a reasonable expectation for such documents and offers the most promi sing hope to the individual desirous of maintaining his currency in a particular technology. A recent development involving the storage of data files on computer tape and the development of programs to evaluate the data in response to preconceived cri teria was also described . NOTICE This document contains informa t ion of a pre liminary nature and was prepared primori ly lor internal u se at the Oa k R idge Not io nal Laboratory. It is subject to revision or c orrection and therefore does not represent a final report.

T h e preliminary design o f a 3095-Mw(thermal), helium-cooled, graphite-moderated reactor employing graphite-U02 fuel elements has been investigated. At design conditions, 150OOF reactor outlet gas would be circulated t o eight steam generators to produce 1O5O0F, 1450-psi steam which would be converted to electrical power i n eight 157-Mw(electrica1) turbine-generators. The overall efficiency of t h i s nuclear power station i s 36.5%. The significant a c t i v i t i e s released from the unclad graphite-U02 fuel appear t o be less than 0.2% of those produced and would be equivalent to 0.002 curie/cm3 in the primary helium circuit. The maintenance problems associated with this contamination level are discussed. A cost analysis indicates that the capital cost o f this nuclear station per electrical k i l o w a t t would be around $220, and that the production cost o f electrical power would be 7.8 milIs/kwhr.