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    • 4. 发明授权
    • Method and system for designing a nuclear reactor core for uprated power operations
    • 用于设计用于升级电力运行的核反应堆堆芯的方法和系统
    • US09047995B2
    • 2015-06-02
    • US11585965
    • 2006-10-25
    • David Joseph KropaczekWilliam Earl Russell, II
    • David Joseph KropaczekWilliam Earl Russell, II
    • G21C19/19G21D3/00G21C5/02G21C7/00
    • G21D3/001G21C5/02G21C7/00G21Y2002/201G21Y2002/304G21Y2004/30G21Y2004/40Y02E30/39
    • In a method of designing a nuclear reactor core for uprated power operations, a set of constraints are inputted to be satisfied for uprated power operations, and a test reactor core design is generated based on the constraints. One or more automated tools may be selected from a set of automated tools to evaluate the test core design against the constraints. The selected tool may then be operated. Operation of the selected automated tool includes simulating reactor operation with the test core design, based on the constraints, to produce a plurality of outputs, comparing the outputs against the constraints, and providing data indicating constraints that were violated by the test core design during the simulation, based on the comparison. One or more of the automated tools are iterated until a test core design meets all constraints for uprated power operations, thereby representing an acceptable power uprate core design.
    • 在设计用于上升功率操作的核反应堆堆芯的方法中,输入一组约束以满足上升功率操作,并且基于约束产生测试反应堆堆芯设计。 可以从一组自动化工具中选择一个或多个自动化工具,以根据约束来评估测试核心设计。 然后可以操作所选择的工具。 所选择的自动化工具的操作包括基于约束来模拟具有测试核心设计的反应堆操作,以产生多个输出,将输出与约束进行比较,以及提供指示在测试核心设计期间违反的约束的数据 仿真,基于比较。 一个或多个自动化工具被迭代,直到测试核心设计满足上升功率操作的所有约束,从而表示可接受的上电核心设计。
    • 5. 发明授权
    • Xenon oscillation prediction method and computer program for xenon oscillation prediction
    • 氙振荡预测方法和氙振荡预测计算机程序
    • US08792604B2
    • 2014-07-29
    • US12595744
    • 2008-04-30
    • Yoichiro Shimazu
    • Yoichiro Shimazu
    • G21C7/36G21C7/00
    • G21C7/00G21C7/005G21C17/00G21D3/001G21D3/04G21Y2002/201G21Y2004/40Y02E30/39
    • To predict xenon oscillation at the present time and later. For this purpose, as an axial offset of a power distribution of a reactor is represented by AOp, an axial offset of a power distribution based on xenon distribution is represented by AOx, and an axial offset of a power distribution based on an iodine distribution is represented by AOi, a parameter DAOpx(=AOp−AOx) and a parameter DAOix(=AOi−AOx) are described by a relational expression of a trigonometric function and an exponential function using an angular frequency of xenon oscillation. Next, phases with respect to initial values of the parameters DAOpx and DAOix are obtained (Step S101). The parameter DAOpx and the parameter DAOix expressed by the obtained phase and a coefficient of the relational expression obtained from this phase are plotted on an X coordinate and a Y coordinate, respectively. A locus at the present time and later is predicted using the locus obtained in this manner (Step S102), and a timing of extinguishing the xenon oscillation is predicted (Step S103).
    • 预测氙气振荡现在和以后。 为此,由于AOp表示反应堆功率分布的轴向偏移,所以基于氙分布的功率分布的轴向偏移由AOx表示,基于碘分布的功率分布的轴向偏移为 由AOi表示,参数DAOpx(= AOp-AOx)和参数DAOix(= AOi-AOx)通过使用氙振荡的角频率的三角函数和指数函数的关系表达式来描述。 接下来,获得关于参数DAOpx和DAOix的初始值的相位(步骤S101)。 通过获得的相位表示的参数DAOpx和参数DAOix以及从该相位获得的关系表达式的系数分别绘制在X坐标和Y坐标上。 使用以这种方式获得的轨迹预测当前时间和之后的轨迹(步骤S102),并且预测氙振荡的熄灭时间(步骤S103)。