Core design and dynamics of the secure district heating reactor

Journal Article · Sat Apr 01 04:00:00 EST 1978 · Nucl. Technol.; (United States)

OSTI ID:5026081

Gransell, H ^[1]; Hoeglund, R

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1. AB Atomenergi, Nykoping, Sweden

The SECURE (Safe and Environmentally Clean Urban REactor) concept was developed by a Finnish-Swedish project group in 1976--1977. It is a small low-pressure and low-temperature nuclear plant for district heating purposes. The special safety requirements for a reactor of this kind have led to an unconventional design with certain inherent safety features to guarantee safe shutdown without the use of any active components. The reactor is located inside a large, slightly pressurized pool containing cold water with about 1000 ppM natural boron. On shutdown, the pool water flows into the primary system to keep the reactor subcritical. Boron is also used for power control, whereas burnup is compensated for by use of the burnable absorber Gd/sub 2/O/sub 3/.

• OSTI ID: 5026081
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 38:1; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210900* -- Nuclear Power Plants-- Process Heat Reactors-- (-1987)
DESIGN
DISTRICT HEATING
HEATING
POOL TYPE REACTORS
PROCESS HEAT REACTORS
REACTOR COMPONENTS
REACTOR CORES
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS