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What Product Might a Renewal of Heavy IonFusion Development Offerthat Competes with Methane Microbes and Hydrogen HTGRs
Ralph Moir
Wayne Meier
George Caporaso
Max Tabak
Hong Qin
Per Peterson
Joe Kwan
John Barnard
Simon Yu
Enrique Henestroza
Lee
Alex Friedman
Grant Logan
Dick Briggs
Will Waldron
Mattaheus Leitner
Debbie Callahan
出版
Lawrence Berkeley National Laboratory
, 2006
URL
http://books.google.com.hk/books?id=2CHbjwEACAAJ&hl=&source=gbs_api
註釋
In 1994 a Fusion Technology journal publication by Logan, Moir and Hoffman described how exploiting unusually-strong economy-of-scale for large (8 GWe-scale) multi-unit HIF plants sharing a driver and target factory among several low cost molten salt fusion chambers {at} $40M per 2.4 GW fusion each (Fig. 1), could produce electricity below 3 cts/kWehr, even lower than similar multi-unit fission plants. The fusion electric plant could cost $12.5 B for 7.5 GWe and produce hydrogen fuel by electrolysis at prices competitive with gasoline-powered hybrids getting fuel from oil at $20$/bbl. At $60/bbl oil, the fusion plant can cost $35B and compete {at} 10% APR financing. Given massive and still-increasing world demand for transportation fuel even with oil climbing above $60/bbl, large HIF plants producing both low cost electricity and hydrogen could be more relevant to motivate new R & D funding for HIF development in the next few years. Three major challenges to get there: (1) NIF ignition in indirect drive geometry for liquid chambers, (2) a modular accelerator to enable a one-module IRE $100 M, (3) compatible HIF target, driver and chamber allowing a small driver {at}$500 M cost for a100MWe net power DEMO. This scoping study, at a very preliminary conceptual level, attempts to identify how we might meet the last two great challenges taking advantage of several recent ideas and advances which motivate reconsideration of modular HIF drivers:60X longitudinal compression of neutralized ion beams using a variable waveform induction module in NDCX down to 2 nanosecond bunches, the proof-of-principle demonstration of fast optical-gated solid state SiC switches by George Caporaso's group at LLNL (see George's RPIA06 paper), and recent work by Ed Lee, John Barnard and Hong Qin on methods for time-dependent correction of chromatic focusing errors in neutralized beams with up to 10 % {Delta}v/v velocity tilt, allowing 5 or more bunches, and shorter bunches, and possibly