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• W1586874783 abstract "As a part of the DOE-sponsored Heavy Ion Fusion Systems Assessment (HIFSA) project, a systems and costing computer model has been developed to examine the behavior of a linear induction accelerator-driven (LINAC) HIF power plant. The main purpose of this code is to examine different system and subsystem options as well as a large range of parameter space in which an HIF power plant might operate. The ultimate goals include the identification of: (1) desirable operating regimes, (2) preferred system and subsystem options, (3) systems with major cost impacts, and (4) systems where appropriate research and development or technological breakthroughs could yield significant economic benefits.The Inertial Confinement Systems and Costing Model (“ICCOMO”) is divided into six main sections: target design; cavity design; beam transport and final focus; linac design; plant power balance; and power plant costing. These routines are controlled by an overall driver which determines system inputs and contains parameter search and optimization capabilities. The target, cavity and beam transport sections each have the capability to model several different options. There are currently six target designs (two singleshell/2-sided illumination schemes; a doubleshell/2-sided illumination scheme; and three innovative designs), and four cavity designs (lithium waterfall, liquid lithium film, magnetically-protected dry wall and granular lithium compound). The target and cavity designs can be paired in a variety of ways. The beam transport option (single-beam, dual-beam and multiple-beam) appropriate to the particular target under consideration is used.The linac design consists of a set of curve fits to data produced by the Lawrence Berkeley Laboratory linac design code, LIACEP. These curve fits model accelerator cost, efficiency and length as a function of a variety of system inputs and target requirements. The plant power balance routine computes gross electric power, recirculating power requirements and net electric power output. If a specific net electric power is desired, the thermal power is adjusted iteratively until convergence is achieved. Finally, the power plant costing routine produces direct and indirect capital costs, operating costs and the resulting cost of electricity based upon the assumption of a tenth-of-a-kind power plant with commercially developed components. Steam, liquid metal or helium coolant cycles are combined with compatible cavity designs. Conventional balance-of-plant technology is generally assumed.This code is currently being exercised in order to locate the preferred operating regime for net electric powers in the range of 1000-2000 MWe HIF commercial power plants. Trade studies that are currently being performed include variation of repetition rate; target type; target parameters; targetillumination scheme; cavity type; number ofreactor cavities; and accelerator parameters.Preliminary results at 1000 MWe indicate that targets with gains of about 100 and driver repetition rates around 5 Hz are preferable. However, overall power plant costs of electricity appear to be relatively insensitive to parameters such as target type, gamma (r3/2R where r is beam spot radius and R is ion range) and accelerator ion species. Both capital costs and cost of electricity appear to be minimized at medium beam energies and high ion voltages (§5 MJ and 15 GeV respectively). Single reactor cavities tend to be preferable to multiple cavities, although the cost of electricity is relatively insensitive to the number of cavities in most operating regimes. Predictably, 2000 MWe power plants yield much lower costs of electricity, demonstrating the preference of the linac driver for operation at higher beam energies and the general economies of scale inherent in larger power plants." @default.
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• W1586874783 date "1986-11-01" @default.
• W1586874783 modified "2023-10-18" @default.
• W1586874783 title "A Systems Performance and Cost Model for Heavy Ion Fusion" @default.
• W1586874783 doi "https://doi.org/10.13182/fst86-a24934" @default.
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