1| Page Technical Meeting on the Status and Evaluation of Severe Accident Simulation Codes for Water Cooled Reactors M0E03 IAEA Headquarters Vienna, Austria 9–12 October 2017 Ref. No.: I3-TM-54660 Information Sheet A. Background The major nuclear power plant (NPP) accidents at Three Mile Island (1979, United States of America), Chernobyl (1986, Union of Soviet Socialist Republics), and Fukushima Daiichi (2011, Japan) have resulted in increased attention being paid to the evaluation of severe accident computational codes and modelling methods, to improvement of the models and of the scope of simulations, and to their validation and related uncertainty and sensitivity analysis. This meeting will focus on deterministic severe accident codes for the analysis of currently operating water cooled reactors (WCRs) and for advanced WCR designs.
Transcript
1 | P a g e
Technical Meeting on the
Status and Evaluation of
Severe Accident Simulation Codes for
Water Cooled Reactors
M0E03
IAEA Headquarters
Vienna, Austria
9–12 October 2017
Ref. No.: I3-TM-54660
Information Sheet
A. Background
The major nuclear power plant (NPP) accidents at Three Mile Island (1979, United States of America), Chernobyl (1986, Union of Soviet Socialist Republics), and Fukushima Daiichi (2011, Japan) have resulted in increased attention being paid to the evaluation of severe accident computational codes and modelling methods, to improvement of the models and of the scope of simulations, and to their validation and related uncertainty and sensitivity analysis. This meeting will focus on deterministic severe accident codes for the analysis of currently operating water cooled reactors (WCRs) and for advanced WCR designs.
2 | P a g e
A ‘severe accident’ is defined in the International Atomic Energy Agency (IAEA) Safety Guide entitled Severe Accident Management Programmes for Nuclear Power Plants (IAEA Safety Standards Series No. NS-G-2.15) as a comprising “accident conditions more severe than a design basis accident” and “involving significant core degradation”. Computer codes for severe accidents are used to model a range of severe accident phenomena such as thermal-hydraulics, heating, hydrogen generation and combustion, reactor vessel failure, core melting, molten core–concrete interactions, containment performance and fission products release. Accordingly, this meeting will review the state-of-the-art severe accident codes and models, and identify: the gaps and limitations of existing codes and models; areas in which further development, validation and uncertainty assessments are required; and areas for which new numerical/experimental benchmarks need to be developed. The meeting will also include an overview of the most recent efforts at comprehensive computational modelling of the Fukushima Daiichi accident. In addition, participants will be invited to present on the severe accident basic principle desktop simulators that are currently used for education and training in support of Member States’ human capacity building programmes.
The IAEA supports Member States through various forms of information exchange, including the publication of various technical and economic documents, coordinated research projects, and Technical Meetings. This meeting seeks to bring together experts on various issues related to the modelling and simulation of severe accidents at currently operating WCRs and for advanced WCR designs, and to serve as a forum for effective information exchange and for achieving a better understanding of the common challenges, the state-of-the-art of severe accident codes and models, and of the tools that can facilitate international cooperation.
B. Objectives
The purpose of the meeting is to provide a forum for detailed presentations and technical discussions on the status and evaluation of severe accident simulation codes for WCRs. Furthermore, the meeting will enable Member States to learn about innovations in this area, as well as about the limitations of existing codes, and to exchange information that can serve as the basis for further collaboration. A special session is planned on recent efforts in the modelling of the Fukushima Daiichi accident.
The presentations and discussions at the meeting will be used in the preparation of an IAEA Technical Document (TECDOC) on the subject of the meeting. This TECDOC is intended to present an objective summary of reference information for interested organizations, individuals, and decision-makers from countries embarking on, or considering the implementation of, new nuclear power programmes as well as from those that are expanding existing programmes.
The meeting will have the following specific objectives, with an emphasis on achieving a better understanding of the capabilities, scope and limitations of the simulation codes used for the modelling and analysis of severe accidents:
Review and discuss the status of, and recent progress in, deterministic simulation codes for evaluation of severe accidents in WCRs;
Collect information on how these codes need to be improved, on their validation and verification and related uncertainty assessments, and on assessing the need for new benchmark models (in reviewing different types of experimental and numerical benchmarks);
3 | P a g e
Provide an update on the results of the most recent modelling and simulations of the Fukushima Daiichi accident;
Assess information on the available personal computer (PC)-based basic principle simulators that cover severe accidents in WCRs and identify areas in which they need to be developed further; and
Discuss the prospects of future research and development (R&D) and projects on advancing the deterministic simulation codes for severe accident evaluation in currently operating WCRs and for advanced WCR designs.
The meeting programme will include presentation and discussion sessions to enable participants to contribute to the summary and highlights of the meeting, and to make recommendations to the IAEA on future activities in this area.
C. Expected Outputs
The expected outputs of the meeting are:
Collection of up-to-date information from Member States on the status and evaluation of deterministic severe accident simulation codes for WCRs;
Exchange of information on demonstrated and ongoing developments in severe accident computational simulations and modelling;
Updated information on modelling and simulations of the Fukushima Daiichi accident; and
Development of the above-mentioned TECDOC, which will address, inter alia, the following topics: innovations in the modelling and graphical visualization of severe accidents (including onset, accident progression and mitigation efforts); improvement of the current computational models and their systematic validation and verification as well as related uncertainty quantifications; strengths and limitations of currently existing computational models; benchmarks (experimental and numerical) for simulation code comparisons and the identification of gaps and areas in which further international collaboration is needed; PC-based basic principle simulators addressing severe accidents as tools in education and training for national human resource building; and global cooperation in support of newly identified and relevant R&D activities.
D. Request to Participants and Call for Papers
Technical papers from contributors are being sought on topics that are described in the following programme outline.
Papers should be written following the instructions provided in Appendix I, and must be submitted electronically in the form of a Microsoft Word document for possible publication as part of an IAEA Technical Document (TECDOC). The papers will be presented by invited speakers and organizations as audiovisual presentations. The deadline for submission of papers is 22 August 2017.
4 | P a g e
Those authors whose presentations are accepted will be informed of the acceptance of their contributions by 22 September 2017. They will then be requested to prepare and submit their presentations in Microsoft PowerPoint or PDF format by email to the Scientific Secretary of the meeting, Ms Tatjana Jevremovic (Email: [email protected]), by 2 October 2017.
Tentative Programme
Session I: Overview of the Existing Computer Codes and Models for Evaluation of Severe Accidents in Water Cooled Reactors
Integrated Computer Codes in Modelling the Progression of Severe Accidents
Computer Codes to Estimate Severe Accident Source Terms [in various scenarios and under different conditions]
Multiphysics Code Coupling Schemes in Modelling the Progression of Severe Accidents [including radiological releases]
Computer Codes for Modelling Full-Plant Responses to Severe Accident Conditions
Computer Codes for Graphical Visualization of Severe Accident Progression
Limitations and Gaps in Existing Severe Accident Simulation Codes and Areas for Further Development
Modelling of the Spent Fuel Pools during Severe Accidents: Current Status of Capabilities, Areas for Improvement and Benchmark Studies
Session II: Uncertainty and Sensitivity Analysis of the Computer Models and Codes for Evaluation of Severe Accidents in Water Cooled Reactors
Current State of Knowledge on the Uncertainties and Validation and Verification of Severe Accident Codes and Models
Development of New Models, and Validation and Verification of Severe Accident Simulation Codes
Numerical Benchmark Studies of the Uncertainties in Severe Accident Modelling and Simulation Codes and Methods
Session III: New Developments in Comprehensive Computer Modelling of the Fukushima Daiichi Accident
Computer Codes’ Capabilities in Modelling the Fukushima Daiichi Accident
Benchmark Studies of the Fukushima Daiichi Accident
Uncertainties and Sensitivity Studies of the Computer Simulated Propagation and Mitigation of the Fukushima Daiichi Accident
5 | P a g e
Session IV: PC Based Basic Principle Simulators for Severe Accidents Used in Education and Training
Severe Accidents Desktop Simulators for Currently Operating WCRs and Advanced WCR Designs
Device Independent and/or Web-Based Severe Accident Desktop Simulators
Benchmark Studies and Gap Analysis in the Severe Accident Desktop Simulators for Currently Operating WCRs and Advanced WCR Designs
E. Administrative and Financial Arrangements
Designating Governments will be informed in due course of the names of the selected candidates and will at that time be given full details on the procedures to be followed with regard to administrative and financial matters.
The costs of the meeting are to be borne by the IAEA; no registration fee will be charged to participants. Travel and subsistence expenses of participants will not be borne by the IAEA. Limited funds are, however, available to help cover the cost of participants from Member States eligible to receive technical assistance under the IAEA’s technical cooperation programme. Such assistance may be offered upon specific request to normally one participant per country provided that, in the IAEA’s view, the participant on whose behalf assistance is requested will make an important contribution to the meeting. The application for financial support should be made at the time of designating the participant. The attached Grant Application Form (Form C) should be used for this purpose
The organizers of the meeting do not accept liability for the payment of any cost or compensation that may arise from damage to or loss of personal property, or from illness, injury, disability or death of a participant while he/she is travelling to and from or attending the meeting, and it is clearly understood that each Government, in designating participants, undertakes responsibility for such coverage. Governments would be well advised to take out insurance against these risks.
F. Registration for Participation
To ensure maximum effectiveness in the exchange of information, the participants should be persons actively involved in the subject of the meeting.
The meeting may be attended only upon official designation. Participants should complete the attached Participation Forms (Form A and B) and send it to the appropriate national authority (Ministry of Foreign Affairs, Permanent Mission to the IAEA or National Atomic Energy Authority) for subsequent transmission to the IAEA, not later than 10 July 2017.
Please note that due to the specific subject of the meeting, all persons wishing to participate in the meeting are expected to submit a paper and provide information by the deadlines specified in Section J below.
Designations received after 10 July 2017 or applications sent directly by individuals or by private institutions cannot be considered. Designating Governments will be informed in due course of the
6 | P a g e
names of the selected candidates and at that time full details will be given on the procedures to be followed with regard to administrative and financial matters.
For Member States receiving technical cooperation assistance, applications for financial support should be made at the time of designating the participant.
The meeting is, in principle, open to all officially designated persons. The IAEA, however, reserves the right to limit participation should this become necessary due to limitations imposed by the available seating capacity. It is therefore recommended that interested persons take the necessary steps to obtain their official designation as early as possible.
A preliminary meeting agenda will be sent to the participants once the completed Participation Forms have been received.
G. Venue and Dates
The meeting will be held at the IAEA’s Headquarters in Vienna, Room M0E03, Austria (Vienna International Centre, Wagramer Straße 5, 1400 Vienna, Austria), from 9 to 12 October 2017.
H. Working Language
The working language of the meeting will be English. All communications must be sent to the IAEA in English.
I. Organization
Scientific Secretary:
Ms Tatjana Jevremovic Team Leader, Water Cooled Reactor Technology Development Nuclear Power Technology Development Section Division of Nuclear Power, Department of Nuclear Energy International Atomic Energy Agency, Vienna International Centre PO Box 100 1400 VIENNA AUSTRIA Tel.: +43 1 2600 22865 Email: [email protected]
7 | P a g e
Administrative Secretary:
Ms Safa Abu Toameh Team Assistant Nuclear Power Technology Development Section Division of Nuclear Power, Department of Nuclear Energy International Atomic Energy Agency, Vienna International Centre PO Box 100 1400 VIENNA AUSTRIA Tel.: +43 1 2600 25795 Email: [email protected]
J. Important Dates
10 July 2017 Submission of Form A (Participation Form); Submission of Form B (Form for Submission of a Paper); and Submission of Form C (Grant Application Form), if applicable.
22 August 2017
22 September 2017
Submission of a paper (in Microsoft Word format)
Notification of acceptance of paper by the IAEA
2 October 2017 Submission of presentation (as a Microsoft PowerPoint or PDF file)
9–12 October 2017 Technical Meeting on the Status and Evaluation of Severe Accident Simulation Codes for Water Cooled Reactors
8 | P a g e
K. Related IAEA Publications
Modelling of Water Cooled Fuel Including Design Basis and Severe Accidents (IAEA-TECDOC-CD-1775, Vienna, 2015)
Accident Analysis for Nuclear Power Plants (Safety Reports Series No. 23, IAEA, Vienna, 2002)
Approaches and Tools for Severe Accident Analysis for Nuclear Power Plants (Safety Reports Series No. 56, IAEA, Vienna, 2008)
Deterministic Safety Analysis for Nuclear Power Plants (IAEA Safety Standards Series No. SSG-2, Vienna, 2009)
Benchmarking Severe Accident Computer Codes for Heavy Water Reactor Applications (IAEA-TECDOC-1727, Vienna, 2013)
Severe Accident Management Programmes for Nuclear Power Plants (IAEA Safety Standards Series No. NS-G-2.15, Vienna, 2009)
1 | P a g e
APPENDIX I
Paper Format Template
In order to ensure an effortless compilation of all papers into the TECDOC, please do not modify the format of this template.
2 | P a g e
TITLE OF THE PAPER: LEFT ALIGNED, 12 POINT TIMES NEW ROMAN, UPPER CASE, PREFERABLY NOT MORE THAN 4 LINES LONG
Abstract. Use A4 paper size (210 mm x 297 mm), with 25 mm margins on all sides. Use 11 point Times New Roman or an equivalent font and single spacing and ‘6 pt after’ line spacing for all main text. Indent the first line of the abstract. An abstract of 200 to 300 words is required. Leave two blank lines before “Abstract”. The abstract is meant to be a brief summary highlighting the topic covered by the paper, addressing the main accomplishments, what is new, and how it relates to the state-of-the-art.
Blank line
Keywords List of three to six keywords (Times New Roman 11 pt, capitalized and in bold)
Blank line
Blank line
Blank line
1. INTRODUCTION [12 point]
Blank line
The paper will be included in the meeting proceedings that will be issued as a TECDOC after the meeting. It is the author’s responsibility to ensure proper use of English. The IAEA will not proofread your submitted paper. The expected length of papers is 10–15 pages.
The paper should start with two blank lines after the keywords. Every paragraph must be indented as in this template. Section titles are 12 pt (no boldface), and numbered in Arabic numerals as shown. Introduce the topic of your work in the first section.
There are four types of reference styles: journal paper [1], proceeding paper [2], book [3], and website [4]. References to websites are discouraged, but acceptable if absolutely necessary. It is the author’s responsibility to check that hyperlinks are working. All references should be cited in the text in numerical order, in order of appearance as [5–7].
Do not automatically paginate your pages.
Blank line
Blank line
2. SECOND OR SUBSEQUENT MAJOR HEADING
Blank line
Divide the paper into sections, and give each section a title that directly corresponds to its contents. The style for subsection titles and all text in this template is as follows:
Blank line
2.1 Subsection title [only first character upper case; 11 pt]
3 | P a g e
Blank line
Equations must be centered and sequentially numbered to the right of the formula:
Blank line
(1)
Blank line
Every variable in the equation must be explained below the equation together with the corresponding units. This line is then not indented.
All the following paragraphs are indented.
Blank line
2.1.1 Subsection level and lower title [only first character upper case; 11 pt]
Blank line
Figures and tables should appear as closely as possible to where they are first cited, e.g. Fig. 1, in the text. Figures are numbered in Arabic numerals, with the caption centered below the figure, in italic, 11 pt. One blank line should be inserted before and after the figure caption.
Blank line
(a) (b)
Figure 1. (a) Sample figure; (b) Sample figure
Blank line
2.1.2 Subsection level and lower title [only first character upper case; 11 pt]
Blank line
When importing figures or graphical images please verify that any numbers, text or symbols are in Times font and are not smaller than 10 pt after reduction to the actual window in your paper.
4 | P a g e
Tables, such as the sample Table 1 below, are numbered in Arabic numerals, with the caption centered above the table, upper case, 11 pt. One blank line should be inserted before and after the table.
Blank line
TABLE 1. SAMPLE TABLE
Predicted Dose [nC]
Measured Dose [nC]
Predicted Nb [%]
Measured % Nb
2 x 106 4 x 105 20 18 Blank line
3. CONCLUSION
Blank line
Present your summary and conclusions here.
Blank line
Blank line
NOMENCLATURE (IF NEEDED)
Blank line
If variables are extensively used in the text, a Nomenclature section would be helpful to readers.
Blank line
Blank line
ACKNOWLEDGMENTS
Blank line
Acknowledge the help of colleagues and funding agencies.
This template was adapted from some templates posted on the Internet.
Blank line
Blank line
REFERENCES
Blank line
1. B.C. Author(s), “Title of the Journal Paper,” Journal Name in Italic, Volume in Bold (followed by the issue number in parentheses if known), pp. 34–89 (YEAR).
2. D.E. Author(s), “Article Title,” Proceedings of Meeting in Italics, Location, Dates of Meeting, Vol. 31, pp. 134–156 (YEAR).
3. F.G. Author, Book Title in Italics, Page or Chapter Numbers, Publisher, City and Country (YEAR).
4. Evaluated Nuclear Data File (ENDF), Database Version of 2017-03-10, https://www-nds.iaea.org/exfor/endf.htm, [website accessed DAY.MONTH.YEAR)
Blank line
Blank line
ANNEX I: TITLE
Blank line
Blank line
5 | P a g e
If necessary, include Appendices as Annexes with clear titles, all in upper case, and numbered as shown.
Form A I3-TM-54660
International Atomic Energy Agency
Participation Form Technical Meeting on the Status and Evaluation of Severe Accident Simulation Codes for Water Cooled Reactors IAEA Headquarters, Vienna, Austria
9–12 October 2017
To be completed by the participant and sent to the competent official authority (e.g. Ministry of Foreign Affairs, Permanent Mission to the IAEA, or National Atomic Energy Authority) of his/her country for subsequent transmission to the International Atomic Energy Agency (IAEA), Vienna International Centre, PO Box 100, 1400 Vienna, Austria, either electronically by email to: [email protected] or by fax to: +43 1 26007 (no hard copies needed).
Participants who are members of an invited organization can submit this form to their organization for subsequent transmission to the IAEA.
Deadline for receipt by IAEA through official channels: 10 July 2017
Family name: (e.g. Smith)
First name(s): (e.g. John)
Mr/Ms
Institution:
Full address:
For urgent communications please indicate:
Tel.: Fax: Email:
Nationality:
Designating Government or organization:
Mailing address (if different from address indicated above):
Do you intend to submit a paper? Yes No
Would you prefer to present your paper as poster? Yes No
Title:
Form B I3-TM-54660
International Atomic Energy Agency
Form for Submission of a Paper Technical Meeting on the Status and Evaluation of Severe Accident Simulation Codes for Water Cooled Reactors IAEA Headquarters, Vienna, Austria, 9–12 October 2017 To be completed by the participant and sent to the competent official authority (e.g. Ministry of Foreign Affairs, Permanent Mission to the IAEA, or National Atomic Energy Authority) of his/her country for subsequent transmission to the International Atomic Energy Agency (IAEA), Vienna International Centre, PO Box 100, 1400 Vienna, Austria, either electronically by email to: [email protected] or by fax to: +43 1 26007 (no hard copies needed).
Participants who are members of an invited organization can submit this form to their organization for subsequent transmission to the IAEA.
Deadline for receipt by IAEA through official channels: 10 July 2017
Title of the paper:
Family name(s) and first name(s) of all author(s): e.g. Smith, John
Scientific establishment(s) in which the work has been carried out
City/Country
1.
2.
Family name and first name(s) of author presenting the paper: e.g. Smith, John
Mailing address:
Mr/Ms:
For urgent communications please indicate Tel.: Email: Fax:
I hereby agree to assign to the International Atomic Energy Agency (IAEA):
The copyright, or
the non-exclusive, royalty-free licence (this option is only for those authors whose parent institution does not allow them to transfer the copyright for work carried out in that institution) to publish the above-mentioned paper,
and certify that no other rights have been granted which could conflict with the right hereby given to the IAEA.
The release of electronic presentations to be included in PDF format in the proceedings and on the IAEA website (if applicable). Date: Signature of main author:
Form C I3-TM-54660
International Atomic Energy Agency
Grant Application Form Technical Meeting on the Status and Evaluation of Severe Accident Simulation Codes for Water Cooled Reactors
IAEA Headquarters, Vienna, Austria
9–12 October 2017
To be completed by the applicant and sent to the competent official authority (e.g. Ministry of Foreign Affairs, Permanent Mission to the IAEA, or National Atomic Energy Authority) of his/her country for subsequent transmission to the International Atomic Energy Agency (IAEA), Vienna International Centre, PO Box 100, 1400 Vienna, Austria, either electronically by email to: [email protected] or by fax to: +43 1 26007 (no hard copies needed).
Deadline for receipt by IAEA through official channels: 10 July 2017
Family name: (e.g. Smith) First name(s): (e.g. John)
Mr/Ms:
Mailing address: Tel.:
Fax:
Email:
Date of birth (yy/mm/dd): Nationality: 1. Education (post-secondary):
Name and place of institution Field of study Diploma or Degree Years attended from to
2. Recent employment record (Starting with your present post):
Name and place of employer/ organization
Title of your position
Type of work Years worked from to
3. Description of work performed over the last three years: 4. Institute’s/Member State’s programme in field of meeting: Date: Signature of applicant: ______________________________ Date: Name, signature and stamp of Ministry of Foreign Affairs, Permanent Mission to the IAEA or National Atomic Energy Authority ____________________
