Published 1982 | Version v1
Report Restricted

Thermal and hydrodynamic analysis of the refueling stand pipe under normal and accidental conditions

Creators

  • 1. Babcock Hitachi K.K., Hiroshima-Ken, Japan

Description

The effect of natural convection on the gas temperature distribution inside the refueling stand pipe for the experimental VHTR is investigated numerically. The analysis is carried out using a computer program which solves continuity, momentum, and energy equations in finite difference form. The results show: (1) The gas temperature exceeds the limiting value of the internal structure when the lower region of the stand pipe is not thermally insulated. (2) The gas temperature can be maintained below the limiting value under both normal and accidental conditions when the lower region is thermally insulated

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Additional details

Publishing Information

Imprint Title
Third Japan-US seminar on HTGR safety technology: proceedings. Volume I
Journal Page Range
p. 231-239.
Report number
NUREG/CP--0045-Vol.1

Conference

Title
3. Japan/US HTGR safety technology seminar.
Dates
2-3 Jun 1982.
Place
Upton, NY (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
15034071
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COMPUTER CODES; CONTROL ROD DRIVES; DIFFERENTIAL EQUATIONS; EQUIPMENT PROTECTION DEVICES; HEAT TRANSFER; HYDRAULICS; JAERI; MATHEMATICAL MODELS; NATURAL CONVECTION; REACTOR ACCIDENTS; REACTOR OPERATION; REACTOR PROTECTION SYSTEMS; REACTOR VESSELS; TEMPERATURE DISTRIBUTION; THERMAL INSULATION; VHTR REACTOR
Descriptors DEC
ACCIDENTS; CONTAINERS; CONVECTION; ENERGY TRANSFER; ENRICHED URANIUM REACTORS; EQUATIONS; EXPERIMENTAL REACTORS; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HELIUM COOLED REACTORS; HTGR TYPE REACTORS; JAPANESE ORGANIZATIONS; NATIONAL ORGANIZATIONS; OPERATION; POWER REACTORS; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; THERMAL REACTORS