公开(公告)号：WO1999021192A2

公开(公告)日：1999-04-29

申请号：PCT/US1998021847

申请日：1998-10-15

Applicant: WESTINGHOUSE ELECTRIC CORPORATION

Inventor： WESTINGHOUSE ELECTRIC CORPORATION ,  STUCKER, David, L. ,  BOGARD, William, T. ,  ERIN, Larry, E. ,  MURPHY, Hugh, J., Jr. ,  HEIBEL, Michael, D.

IPC: G21C17/00

CPC classification number: G01T3/006 ,  G21D3/04 ,  Y02E30/40

Abstract: A safety grade protection system for monitoring parameters indicative of the status of a core of a nuclear reactor, and reducing the criticality of the nuclear reaction when the onset of unsafe conditions are detected. The invention directly detects, in real time, the power at a plurality of axial and radial locations within or about the core and provides a three-dimensional real-time core power output. The system processes those outputs together with a measure of core coolant inlet temperature, pressure and flow rate to calculate, in real time, the fuel centerline temperature, the heat transfer condition at the fuel elements' boundary and the rate of power change within the core.

Abstract translation: 一个安全等级保护系统，用于监测指示核反应堆核心状态的参数，以及在发现不安全状况时降低核反应的危险性。 本发明实时地直接检测核心内或周围的多个轴向和径向位置处的功率，并提供三维实时核心功率输出。 系统将这些输出与核心冷却液入口温度，压力和流量的量度一起处理，以实时计算燃料中心线温度，燃料元件边界处的热传递条件和核心内功率变化率 。