Affiliation:
1. Canadian Nuclear Laboratories , 286 Plant Road, Chalk River, ON K0J 1J0, Canada
Abstract
Abstract
In many jurisdictions, filtered containment venting systems are an integral part of severe accident management guidelines but are normally only used as a last resort, to be manually activated when the containment pressure approaches the containment failure limit. This approach fails to utilize the capability of the filtered venting system to better control containment pressure throughout an accident and to create capacity for possible future pressurization based on the accident progression. In this paper, smart venting strategies are explored, using a generic single-unit Canada Deuterium Uranium (CANDU) (660 MWel) plant model in MAAP-CANDU, as a means to mitigate the consequences of a severe accident. These strategies are able to account for both current conditions as well as possible future pressurization. The use of strategic venting offers an improvement in maintaining containment integrity, as well as reducing I-131 releases to the environment by about 10% to 31% compared to last-resort venting while being feasible for manual operator actions. Overall, this comprehensive analysis demonstrates the capability of a smart venting strategy paired with a filtered containment venting system as an active mitigation tool.
Subject
Nuclear Energy and Engineering,Radiation
Reference20 articles.
1. Status Report on Filtered Containment Venting,2014
2. Severe Accident Mitigation Through Improvements in Filtered Containment Vent Systems and Containment Cooling Strategies for Water Cooled Reactors;International Atomic Energy Agency,2015
3. Control of Accidental Discharge of Radioactive Materials by Filtered Containment Venting System: A Review;Nucl. Eng. Technol.,2019
4. Overview of Filtered Containment Venting System in Nuclear Power Plants in Asia;Ann. Nucl. Energy,2018
5. Overview of Containment Filtered Vent Under Severe Accident Conditions at Wolsong NPP Unit 1;Nucl. Eng. Technol.,2013
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献