SP-100 reactor design and performance

Deane, Nelson A.; Murata, Ryo; Kruger, G.B.

doi:10.1109/iecec.1989.74624

Cited by 6 publications

(1 citation statement)

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“…Uranium nitride fuel was selected because of its higher melting temperature (3030 K) and enhanced density. All liquid metal cooled fast spectrum space reactors, such as SP-100 of the United States [19] and ERATO of France [20], adopt nitride fuel for the following reasons:…”

Section: Reactor Core Designmentioning

confidence: 99%

RAPID-L and RAPID operator-free fast reactors combined with a thermoelectric power conversion system

Kambe

Tsunoda

Nakajima

et al. 2004

Proceedings of the Institution of Mechanical Engineers, Part A:

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The 200 kWe, uranium nitride fuelled, lithium-cooled, fast reactor concept "RAPID-L" for a lunar base power system, and the 1000 kWe, U -Pu -Zr metal fuelled, sodium-cooled, fast reactor concept "RAPID" for a terrestrial power system have been demonstrated. These reactors are characterized by the RAPID (Refuelling by All Pins Integrated Design) refuelling concept, which enables quick and simplified refuelling. The essential feature of the RAPID concept is that the reactor core consists of an integrated fuel assembly (IFA) instead of conventional fuel subassemblies. In this small-size reactor core, all the fuel pins are integrated altogether and encased in a fuel cartridge. Refuelling is conducted by replacing an IFA. The reactor can be operated without refuelling for up to 10 years. Unique challenges in reactivity control system design have been addressed in these reactors. They have no control rod, but involve the following innovative reactivity control systems: lithium expansion modules (LEMs) for inherent reactivity feedback, lithium injection modules (LIMs) for inherent ultimate shutdown and lithium release modules (LRMs) for automated reactor start-up. All these systems adopt lithium-6 as a liquid poison instead of B4C rods. In combination with LEMs, LIMs and LRMs, RAPID-L and RAPID can be operated without an operator. Another characteristic of RAPID-L and RAPID is a thermoelectric (TE) power conversion system instead of the conventional steam turbine generator. In this paper, design characteristics of RAPID-L and RAPID power system concepts are discussed.

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Section: Reactor Core Designmentioning

confidence: 99%

RAPID-L and RAPID operator-free fast reactors combined with a thermoelectric power conversion system

Kambe

Tsunoda

Nakajima

et al. 2004

Proceedings of the Institution of Mechanical Engineers, Part A:

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An accident-tolerant control drum system for a small space reactor

Han

Lim

Noh

2015

Annals of Nuclear Energy

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Reactivity Control Schemes for Fast Spectrum Space Nuclear Reactors

Craft

King

2008

AIP Conference Proceedings

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Several different reactivity control schemes are considered for future space nuclear reactor power systems. Each of these control schemes uses a combination of boron carbide absorbers and/or beryllium oxide reflectors to achieve sufficient reactivity swing to keep the reactor subcritical during launch and to provide sufficient excess reactivity to operate the reactor over its expected 7-15 year lifetime. The size and shape of the control system directly impacts the size and mass of the space reactor's reflector and shadow shield, leading to a tradeoff between reactivity swing and total system mass. This paper presents a trade study of drum, shutter, and petal control schemes based on reactivity swing and mass effects for a representative fast-spectrum, gas-cooled reactor. For each control scheme, the dimensions and composition of the core are constant, and the reflector is sized to provide $5 of cold-clean excess reactivity with each configuration in its most reactive state. The advantages and disadvantages of each configuration are discussed, along with optimization techniques and novel geometric approaches for each scheme.

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SP-100 reactor design and performance

Cited by 6 publications

References 0 publications

RAPID-L and RAPID operator-free fast reactors combined with a thermoelectric power conversion system

RAPID-L and RAPID operator-free fast reactors combined with a thermoelectric power conversion system

An accident-tolerant control drum system for a small space reactor

Reactivity Control Schemes for Fast Spectrum Space Nuclear Reactors

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