Download Free Nrc Plant Analyzer Development At Bnl Bwr Book in PDF and EPUB Free Download. You can read online Nrc Plant Analyzer Development At Bnl Bwr and write the review.

The objective of this program is to develop an LWR engineering plant analyzer capable of performing realistic and accurate simulations of plant transients and Small-Break Loss of Coolant Accidents at real-time and faster than real-time computing speeds and at low costs for preparing, executing and evaluating such simulations. The program is directed toward facilitating reactor safety analyses, on-line plant monitoring, on-line accident diagnosis and mitigation and toward improving reactor operator training. The AD10 of Applied Dynamics International, Ann Arbor, MI, a special-purpose peripheral processor for high-speed systems simulation, is programmed through a PDP-11/34 minicomputer and carries out digital simulations with analog hardware in the input/output loop (up to 256 channels). Analog signals from a control panel are being used now to activate or to disable valves and to trip pump drive motors or regulators without interrupting the simulation. An IBM personal computer with multicolor graphics capabilities and a CRT monitor are used to produce on-line labelled diagrams of selected plant parameters as functions of time.
Advanced technology for high-speed interactive nuclear power plant simulations is of great value for timely resolution of safety issues, for plant monitoring, and for computer-aided emergency responses to an accident. Presented is the methodology employed at BNL to develop a BWR plant analyzer capable of simulating severe plant transients at much faster than real-time process speeds. Five modeling principles are established and a criterion is given for selecting numerical procedures and efficient computers to achieve the very high simulation speeds. Typical results are shown to demonstrate the modeling fidelity of the BWR plant analyzer.
An engineering plant analyzer has been developed at BNL for realistically and accurately simulating transients and severe abnormal events in BWR power plants. Simulations are being carried out routinely with high fidelity, high simulation speed, at low cost and with unsurpassed user convenience. The BNL Plant Analyzer is the only operating facility which (a) simulates more than two orders-of-magnitude faster than the CDC-7600 mainframe computer, (b) is accessible and fully operational in on-line interactive mode, remotely from anywhere in the US, from Europe or the Far East (Korea), via widely available IBM-PC compatible personal computers, standard modems and telephone lines, (c) simulates both slow and rapid transients seven times faster than real-time in direct access, and four times faster in remote access modes, (d) achieves high simulation speed without compromising fidelity, and (e) is available to remote access users at the low cost of $160 per hour.
The BWR Plant Analyzer has been developed for realistic and accurate simulations of normal and severe abnormal transients in BWR power plants at high simulation speeds, low capital and operating costs and with outstanding user conveniences. The simulation encompasses neutron kinetics, heat conduction in fuel structures, nonequilibrium, nonhomogeneous coolant dynamics, steam line acoustics, and the dynamics of turbines, condensers, feedwater pumps and heaters, of the suppression pool, the control systems and the plant protection systems. These objectives have been achieved. Advanced modeling, using extensively analytical integration and dynamic evaluation of analytical solutions, has been combined with modern minicomputer technology for high-speed simulation of complex systems. The High-Speed Interactive Plant Analyzer code HIPA-BWR has been implemented on the AD10 peripheral parallel processor.
This program is being conducted to develop an engineering plant analyzer capable of performing, in a dedicated facility, accurate real-time and faster than real-time simulations of plant transients and small-break loss of coolant accidents in LWR power plants. The analyzer is required to obtain timely and cost-effective answers to a wide variety of safety questions related to the nuclear steam supply system, the balance of the plant and its control systems, for human factors studies (error rate measurements), for risk assessments. For monitoring continuously the operation of a particular power plant, for the detection of instrument, component or system failures, and for anticipating the consequences from mitigating operator actions following an accident.