Research on a 2700-MW(th) pebble-bed reactor for a helium-turbine power plant

Journal Article · Mon Nov 01 04:00:00 EST 1976 · Nucl. Technol.; (United States)

OSTI ID:7318191

Ruetten, H J; Teuchert, E

A favorable distribution of the fuel temperature in combination with a high cooling gas outlet temperature as necessary for a helium-turbine power plant can be achieved in a pebble-bed reactor with ''once-through-then-out'' fueling without leaving the scope of present feasibility. The equilibrium cycle is reached after a well-balanced and short running-in period. For non-base-load operation, the reactor can be controlled by moving the control rods in the upper void above the pebble bed. Withdrawing the rods causes an increase of the maximum fuel temperature by only 56/sup 0/C. To avoid replacing of the side reflector during a time of 30 yr, the fast-neutron flux in the reflector can be markedly lowered by inserting a certain amount of neutron poison into the reflector graphite and by an outer ring of ''breeding'' fuel elements, respectively.

• Research Organization: Kernforschungsanlage, Juelich, Ger.
• OSTI ID: 7318191
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 31:2; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210300* -- Power Reactors
Nonbreeding
Graphite Moderated
DESIGN
GAS TURBINES
HOMOGENEOUS REACTORS
KINETICS
PEBBLE BED REACTORS
REACTOR COMPONENTS
REACTOR CORES
REACTOR KINETICS
REACTORS
SOLID HOMOGENEOUS REACTORS
SPECIFICATIONS
TURBINES
TURBOMACHINERY