SP-100 Power Program

Mondt, Jack F.; Truscello, V. C.; Marriott, A. T.

doi:10.1063/1.2950161

Cited by 14 publications

(4 citation statements)

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“…The electromagnetic (EM) pump is an indispensable equipment for transporting conductive fluids in diverse energy conversion systems, such as liquid metal-cooled nuclear reactors, aerospace, metal casting, and chip heat dissipation [1][2][3]. Compared with the mechanical pumps, the advantages of the EM pump are of contactless drive, no-moving parts, leakage free, and low vibration and noise [4,5].…”

Section: Introductionmentioning

confidence: 99%

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Wang,

Zhang

et al. 2024

International Journal of Energy Research

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The strong coupling between fluid and electromagnetic field in the annular linear induction pump (ALIP) can gradually amplify small disturbance in the fluid field into large-scale vortices. The appearance of the vortices seriously affects the efficiency and reliability of the pump. An active flow control method based on the modification of the driving electromagnetic field is proposed to improve the flow stability. A simplified numerical model of the ALIP is established to simulate the three-dimensional flow in the annular flow channel, and the internal electromagnetic field is modified by using the modulated surface current. The influences of the active flow control method on the flow behavior, pressure pulsation, and energy conversion are, respectively, investigated based on the simulation results. The results show that the modulated surface current can accelerate the vortical evolution. The size and strength of the vortices are suppressed in the modified electromagnetic field. The pressure pulsation low frequency at the ALIP’s outlet is significantly reduced when the modulated surface current density reaches a certain level. The surges in the processes of energy conversion become more gentle within the control method, and the overall energy efficiency is slightly reduced even at the highest modulated surface current density.

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Section: Introductionmentioning

confidence: 99%

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Wang,

Zhang

et al. 2024

International Journal of Energy Research

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“…All of these used IJZrH fuel with a NaK coolant (Anderson, 1983). The subsequent SP-1OO program designed a reactor which used UN fuel with a Li coolant (Mondc 1994;Mondt, 1995;E1-Genk, 1994). The Russian Rorsat reactors (about 30 flown in space) used UMo fuel (Angelo, 1985).…”

Section: Tug Designsmentioning

confidence: 99%

“…The baseline SP-1OOwas designed to produce 2400 kW thermal and 100 kW electric with a lifetime of 7 to 10 years (Mondt, 1994, Mondt 1995, E1-Genk 1994. The specific power at program termination was about 42 kg/kWe.…”

Section: Un-fueled Gas-cooled Reactor Wi~h Brayton Conversion System 3"mentioning

confidence: 99%

NEP for a Kuiper Belt Object rendezvous mission

Lipinski¹,

Lenard²,

Wright³

et al. 2000

AIP Conference Proceedings

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3Los Alamos National Luborato~, i% Alamos, NM 87545, poston@lanl.gov AbstracL Kuiper Belt Objects (KBOS) are a recently-discovered set of solar system bodies which lie at about the orbit of Pluto (40 AU) out to about 100 astronomical units (AU). There are estimated to be about 100,000 KBOS with a diameter greater than 100 km. KBOS are postulated to be composed of the pristine material which formed our solar system and may even have organic materials in them. A detailed study of KBO size, orbit distribution, structure, and surface composition could shed light on the origins of the solar system and perhaps even on the origin of life in our solar system. A rendezvous mission including a lander would be needed to perform chemical analysis of the surface and sub-surface composition of KBOS. These requirements set the size of the science probe at around a ton. Mission analyses show that a fission-powered system with an electric thruster could rendezvous at 40 AU in about 13.0 years with a total AV of 46 krnk. It would deliver a 1000-kg science payload while providing ample onboard power for relaying data back to earth. The launch mass of the entire system (power, thrusters, propellant, navigation, communication, structure, science payload, etc.) would be 7984 kg if it were placed into an earth-escape trajectory (C=O). Alternatively, the system could be placed into a 700-kmearth orbit with morepropellant,yieldinga total mass in LEO of 8618 kg, and then spiral out of earth orbit to arrive at the KBO in 14.3 years. To achieve this performance, a fission power system with 100 kW of electrical power and "atotal mass (reactor, shield, conversion, and radiator) of about 2350 kg. Three possible configurations are proposed: (1) a UZrH-fueled, NaK-cooled reactor with a steam Rankine conversion system, (2) a UN-fueled gas-cooled reactor with a recuperated Brayton conversion system, and (3) a UN-fueled heatpipe-cooled reactor with a recuperated Brayton conversion system. (Boiling and condensation in the Rankine system is a technical risk at present.) All three of these systems have the potential to meet the weight requirement for the trip and to be built in the near term.

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“…The most recent U.S. space reactor power program, SP-1OO, developed detailed designs, advanced reactor fiel, a "zero-power" reactor critical assembly, radiation-hardened control drives, and various other hardware components in the 1980s. The baseline SP-1OOwas designed to produce 2400 kW thermal and 100 kW electric with a lifetime of 7 to 10 years (Mondt, 1994, Mondt 1995, E1-Genk 1994. The projected specific power at program termination was about 42 kg/kWe.…”

Section: Zrh-fueled Nak-cooled Reactor With Rankine Conversion Systemmentioning

confidence: 99%

Fission-based electric propulsion for interstellar precursor missions

Lipinski¹,

Lenard²,

Wright³

et al. 2000

AIP Conference Proceedings

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Abstract. This paper reviews the technology options for a fission-based electric propulsion system for interstellar precursor missions. To achieve a total AV of more than 100 km/s in less than a decade of thrusting with an electric propulsionsystemof 10,000s Isp requires a specificmass for the power systemof less than 35 kg/kWe.Three possible configurationsare described:(1) a UZrH-fueled,NaK-cooledreactor with a steamRankineconversionsystem,(2) a UNfueled gas-cooledreactor with a recuperatedBrayton conversion system, and (3) a UN-fieled heatpipe-cooledreactor with a recuperatedBrayton conversionsystem. All three of these systemshave the potential to meet the specificmass requirementsfor interstellarprecursormissionsin the near term. Advancedversionsof a fission-basedelectricpropulsion systemmighttravel as much as severallightyears in 200 years.

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SP-100 Power Program

Cited by 14 publications

References 0 publications

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

Active Flow Control of the Magnetohydrodynamic Flow in an Annular Linear Induction Pump by Modifying the Driving Electromagnetic Field

NEP for a Kuiper Belt Object rendezvous mission

Fission-based electric propulsion for interstellar precursor missions

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