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Title: High flux research reactors based on particulate fuel

Abstract

High Flux Particle Bed Reactor (HFPBR) designs based on High Temperature Gas Reactors (HTGR) particular fuel are described. The coated fuel particles, approx.500 microns in diameter, are packed between porous metal frits, and directly cooled by flowing D/sub 2/O. The large heat transfer surface area in the packed bed, approx.100 cm/sup 2//cm/sup 3/ of volume, allows high power densities, typically 10 MW/liter. Peak thermal fluxes in the HFPBR are 1 to 2 x 1/sup 16/ n/c/sup 2/ sec., depending on configuration and moderator choice with beryllium and D/sub 2/O Moderators yielding the best flux performance. Spent fuel particles can be hydraulically unloaded every day or two and fresh fuel reloaded. The short fuel cycle allows HFPBR fuel loading to be very low, approx.2 kg of /sup 235/U, with a fission product inventory one-tenth of that in present high flux research reactors. The HFPBR can use partially enriched fuel, 20% /sup 235/U, without degradation in flux reactivity. 8 refs., 12 figs., 2 tabs.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (USA)
OSTI Identifier:
6051442
Report Number(s):
BNL-37931; CONF-860171-1
ON: DE86009919
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Conference: Advanced steady state neutron sources meeting, Washington, DC, USA, 1 Jan 1986; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; REACTOR CORES; DESIGN; RESEARCH REACTORS; COATED FUEL PARTICLES; SPACE POWER REACTORS; SPACE PROPULSION REACTORS; HEAT TRANSFER; HYDRAULICS; MODERATELY ENRICHED URANIUM; NEUTRON FLUX; PERFORMANCE; POWER DENSITY; POWER DISTRIBUTION; REACTOR FUELING; ACTINIDES; ELEMENTS; ENERGY TRANSFER; ENRICHED URANIUM; FLUID MECHANICS; FUEL PARTICLES; ISOTOPE ENRICHED MATERIALS; MATERIALS; MECHANICS; METALS; MOBILE REACTORS; POWER REACTORS; PROPULSION REACTORS; RADIATION FLUX; REACTOR COMPONENTS; REACTORS; RESEARCH AND TEST REACTORS; URANIUM; 210600* - Power Reactors, Auxiliary, Mobile Package, & Transportable

Citation Formats

Powell, J R, Takahashi, H, and Horn, F L. High flux research reactors based on particulate fuel. United States: N. p., 1986. Web.
Powell, J R, Takahashi, H, & Horn, F L. High flux research reactors based on particulate fuel. United States.
Powell, J R, Takahashi, H, and Horn, F L. 1986. "High flux research reactors based on particulate fuel". United States. https://www.osti.gov/servlets/purl/6051442.
@article{osti_6051442,
title = {High flux research reactors based on particulate fuel},
author = {Powell, J R and Takahashi, H and Horn, F L},
abstractNote = {High Flux Particle Bed Reactor (HFPBR) designs based on High Temperature Gas Reactors (HTGR) particular fuel are described. The coated fuel particles, approx.500 microns in diameter, are packed between porous metal frits, and directly cooled by flowing D/sub 2/O. The large heat transfer surface area in the packed bed, approx.100 cm/sup 2//cm/sup 3/ of volume, allows high power densities, typically 10 MW/liter. Peak thermal fluxes in the HFPBR are 1 to 2 x 1/sup 16/ n/c/sup 2/ sec., depending on configuration and moderator choice with beryllium and D/sub 2/O Moderators yielding the best flux performance. Spent fuel particles can be hydraulically unloaded every day or two and fresh fuel reloaded. The short fuel cycle allows HFPBR fuel loading to be very low, approx.2 kg of /sup 235/U, with a fission product inventory one-tenth of that in present high flux research reactors. The HFPBR can use partially enriched fuel, 20% /sup 235/U, without degradation in flux reactivity. 8 refs., 12 figs., 2 tabs.},
doi = {},
url = {https://www.osti.gov/biblio/6051442}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Feb 01 00:00:00 EST 1986},
month = {Sat Feb 01 00:00:00 EST 1986}
}

Conference:
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