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Title: The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation

Abstract

Station Blackout (SBO) is defined as 'a condition wherein a nuclear power plant sustains a loss of all offsite electric power system concurrent with turbine trip and unavailability of all onsite emergency alternating current (AC) power system. Station blackout does not include the loss of available AC power to buses fed by station batteries through inverters or by alternate AC sources as defined in this section, nor does it assume a concurrent single failure or design basis accident...' in accordance with Reference 1. In this paper, the innovative features of the AP1000 plant design are described with their operation in the scenario of an extended station blackout event. General operation of the passive safety systems are described as well as the unique features which allow the AP1000 plant to cope for at least 7 days during station blackout. Points of emphasis will include: - Passive safety system operation during SBO - 'Fail-safe' nature of key passive safety system valves; automatically places the valve in a conservatively safe alignment even in case of multiple failures in all power supply systems, including normal AC and battery backup - Passive Spent Fuel Pool cooling and makeup water supply during SBO - Robustness ofmore » AP1000 plant due to the location of key systems, structures and components required for Safe Shutdown - Diverse means of supplying makeup water to the Passive Containment Cooling System (PCS) and the Spent Fuel Pool (SFP) through use of an engineered, safety-related piping interface and portable equipment, as well as with permanently installed onsite ancillary equipment. (authors)« less

Authors:
; ; ; ;  [1]
  1. Westinghouse Electric Company LLC, 1000 Westinghouse Drive, Cranberry Township, PA 16066 (United States)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22105920
Resource Type:
Conference
Resource Relation:
Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 6 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; AC SYSTEMS; CONTAINMENT; COOLING SYSTEMS; DESIGN BASIS ACCIDENTS; ENGINEERED SAFETY SYSTEMS; FAILURES; FUEL STORAGE POOLS; INVERTERS; MITIGATION; OUTAGES; PORTABLE EQUIPMENT; PWR TYPE REACTORS; REACTOR SAFETY; REACTOR SHUTDOWN; SPENT FUELS; TURBINES; WATER SUPPLY

Citation Formats

Vereb, F., Winters, J., Schulz, T., Cummins, E., and Oriani, L. The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation. United States: N. p., 2012. Web.
Vereb, F., Winters, J., Schulz, T., Cummins, E., & Oriani, L. The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation. United States.
Vereb, F., Winters, J., Schulz, T., Cummins, E., and Oriani, L. Sun . "The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation". United States.
@article{osti_22105920,
title = {The AP1000{sup R} nuclear power plant innovative features for extended station blackout mitigation},
author = {Vereb, F. and Winters, J. and Schulz, T. and Cummins, E. and Oriani, L.},
abstractNote = {Station Blackout (SBO) is defined as 'a condition wherein a nuclear power plant sustains a loss of all offsite electric power system concurrent with turbine trip and unavailability of all onsite emergency alternating current (AC) power system. Station blackout does not include the loss of available AC power to buses fed by station batteries through inverters or by alternate AC sources as defined in this section, nor does it assume a concurrent single failure or design basis accident...' in accordance with Reference 1. In this paper, the innovative features of the AP1000 plant design are described with their operation in the scenario of an extended station blackout event. General operation of the passive safety systems are described as well as the unique features which allow the AP1000 plant to cope for at least 7 days during station blackout. Points of emphasis will include: - Passive safety system operation during SBO - 'Fail-safe' nature of key passive safety system valves; automatically places the valve in a conservatively safe alignment even in case of multiple failures in all power supply systems, including normal AC and battery backup - Passive Spent Fuel Pool cooling and makeup water supply during SBO - Robustness of AP1000 plant due to the location of key systems, structures and components required for Safe Shutdown - Diverse means of supplying makeup water to the Passive Containment Cooling System (PCS) and the Spent Fuel Pool (SFP) through use of an engineered, safety-related piping interface and portable equipment, as well as with permanently installed onsite ancillary equipment. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
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