ARC: A compact, high-field, fusion nuclear science facility and demonstration power plant with demountable magnets
ARC: A compact, high-field, fusion nuclear science facility and demonstration power plant with demountable magnets
复制标题
DOI：
10.1016/j.fusengdes.2015.07.008
复制
发表时间：
2015-11-01
影响因子：
1.7
通讯作者：
Whyte, D. G.
中科院分区：
文献类型：
--
作者：
Sorbom, B. N.;Ball, J.;Whyte, D. G.
经济、坚固、紧凑（ARC）反应堆是概念设计研究的产物，旨在减少联合聚变核科学设施（FNSF）和示范聚变试验电厂的尺寸、成本和复杂性。ARC是一个类似于200-250 MWe托卡马克的反应堆，长半径为3.3 m，短半径为1.1 m，轴上磁场为9.2T。ARC有稀土钡铜氧化物（REBCO）超导环向场线圈，它有接头，使拆卸。这允许真空容器被快速更换，减轻第一壁存活性的担忧，并且允许单个装置测试许多真空容器设计和偏滤器材料。设计点具有近似于13.6的等离子体聚变增益Q（p），但完全无电感，具有仅类似于63%的适度自举分数。因此，ARC提供了高功率增益，具有相对较大的电流分布外部控制。这种极具吸引力的组合是通过新的REBCO超导体技术实现的线圈上类似于23 T的峰值磁场实现的。外部电流驱动由两个创新的内置RF发射器提供，使用25 MW的低混合动力和13.6 MW的离子回旋快波功率。由此产生的高效电流驱动提供了远离破坏性极限的鲁棒的稳态核心等离子体。ARC使用全液体覆盖层，由低压、缓慢流动的氟锂铍（FLiBe）熔盐组成。液体包层是低风险技术，提供有效的中子慢化和屏蔽，出色的散热，氚增殖率>= 1.1。FLiBe是液体的大温度范围允许900 K的输出包层温度、单相流体冷却和高效氦布雷顿循环，这允许在将ARC作为试点发电厂操作时进行净发电。(C)2015 Elsevier B. V.版权所有。
The affordable, robust, compact (ARC) reactor is the product of a conceptual design study aimed at reducing the size, cost, and complexity of a combined fusion nuclear science facility (FNSF) and demonstration fusion Pilot power plant. ARC is a similar to 200-250 MWe tokamak reactor with a major radius of 3.3 m, a minor radius of 1.1 m, and an on-axis magnetic field of 9.2T. ARC has rare earth barium copper oxide (REBCO) superconducting toroidal field coils, which have joints to enable disassembly. This allows the vacuum vessel to be replaced quickly, mitigating first wall survivability concerns, and permits a single device to test many vacuum vessel designs and divertor materials. The design point has a plasma fusion gain of Q(p) approximate to 13.6, yet is fully non-inductive, with a modest bootstrap fraction of only similar to 63%. Thus ARC offers a high power gain with relatively large external control of the current profile. This highly attractive combination is enabled by the similar to 23 T peak field on coil achievable with newly available REBCO superconductor technology. External current drive is provided by two innovative inboard RF launchers using 25 MW of lower hybrid and 13.6 MW of ion cyclotron fast wave power. The resulting efficient current drive provides a robust, steady state core plasma far from disruptive limits. ARC uses an all-liquid blanket, consisting of low pressure, slowly flowing fluorine lithium beryllium (FLiBe) molten salt. The liquid blanket is low-risk technology and provides effective neutron moderation and shielding, excellent heat removal, and a tritium breeding ratio >= 1.1. The large temperature range over which FLiBe is liquid permits an output blanket temperature of 900 K, single phase fluid cooling, and a high efficiency helium Brayton cycle, which allows for net electricity generation when operating ARC as a Pilot power plant. (C) 2015 Elsevier B.V. All rights reserved.