Oral presentation

[1C01-06] SA Analysis

Mon. Mar 13, 2023 10:15 AM - 11:55 AM Room C (11 Bildg.2F 1106)

Chair:Takahisa Matsuzaki(HGNE)

10:15 AM - 10:30 AM

[1C01] Development of SIMMER-V code system using new physical models

(1) Planning of SIMMER-V development and outline of code

*Hirotaka Tagami¹, Shinya Ishida¹, Yoshiharu Tobita¹, Yasushi Okano¹, Hidemasa Yamano¹, Shigenobu Kubo¹, Frederic Payot², Laurent Saas², Laurent Trotignon², Pierre Gubernatis² (1. JAEA, 2. CEA)

10:30 AM - 10:45 AM

[1C02] Development of detailed fuel pin model in SIMMER-V code

(2) Verification of fuel pin thermal behavior

*Shinya Ishida¹, Hirotaka Tagami¹, Yasushi Okano¹, Hidemasa Yamano¹, Shigenobu Kubo¹ (1. JAEA)

10:45 AM - 11:00 AM

[1C03] Development of a CFD Compressible Fluid Dynamics Simulation Code: BAROC for Safety Analysis of Containment Vessel and Building Under Severe Accident Conditions

(1)Analysis for International standard problem ISP-47/ThAI on containment thermal hydraulics

*Fumitomo Onishi¹, Achihiro Hamano¹, Toshiharu Mitsuhashi ¹, Atsuo Takahashi¹, Hirotaka Hadachi¹, Hideaki Koike¹ (1. AdvanceSoft)

11:00 AM - 11:15 AM

[1C04] Development of a CFD Compressible Fluid Dynamics Simulation Code: BAROC for Safety Analysis of Reactor Containment Vessel and Building Under Severe Accident Conditions

(2) Detailed Analysis of FP aerosol behavior

*Atsuo Takahashi¹, Toshiharu Mitsuhashi¹, Fumitomo Onishi¹, Hirotaka Hadachi¹, Achihiro Hamano¹, Hideaki Koike¹ (1. AdvanceSoft Corporation)

11:15 AM - 11:30 AM

[1C05] Automatic pressure loss coefficient search of duct works for room heat up analysis

*MINGXI WEI¹, Daisuke Fujiwara¹, Kouta Tominaga¹ (1. TEPCO SYSTEMS CORPORATION)

11:30 AM - 11:45 AM

[1C06] Evaluation of the factors that prevent the reactor building of 1F2 from exploding

*Penghui Chai¹, Kenichirou Nozaki¹, Shouichi Suehiro¹, Takeshi Honda², Masato Mizokami², Shinya Mizokami², Kenji Owada² (1. TEPCO SYSTEMS COOPRATION, 2. Tokyo Electric Power Company Holdings, Inc.)

Time reserved for Chair （11:45 AM - 11:55 AM）

Oral presentation

[1C07-10] FP Behavior

Mon. Mar 13, 2023 2:45 PM - 3:50 PM Room C (11 Bildg.2F 1106)

Chair:Taizo Kanai(CRIEPI)

2:45 PM - 3:00 PM

[1C07] Study on Formation Behavior of Gaseous Iodine during SFR Severe Accidents

(1) Overview of Research and Development

*Hiroshi Seino¹, Toshiki Kondo¹, Daisuke Doi¹, Shin Kikuchi¹ (1. JAEA)

3:00 PM - 3:15 PM

[1C08] Study on Formation Behavior of Gaseous Iodine during SFR Severe Accidents

(2) Preliminary Evaluation of Behavior of Iodine by Chemical Equilibrium Calculations

*Daisuke Doi¹, Toshiki Kondo¹, Shin Kikuchi¹, Hiroshi Seino¹ (1. JAEA)

3:15 PM - 3:30 PM

[1C09] Study on Formation Behavior of Gaseous Iodine during SFR Severe Accidents

(3) Thermal Behavior of Sodium Iodide in Inert Atmosphere

*Toshiki Kondo¹, Shin Kikuchi¹, Daisuke Doi¹, Hiroshi Seino¹ (1. JAEA)

3:30 PM - 3:45 PM

[1C10] Evaluation of FP behavior Models in SAs

4. Evaluation of chemical reaction model in SA codes

*Hidetoshi Karasawa¹, Shuuhei Miwa¹, Chiaki Kino² (1. JAEA, 2. IAE)

Time reserved for Chair （3:45 PM - 3:50 PM）

Oral presentation

[1C11-14] FCVS

Mon. Mar 13, 2023 3:50 PM - 4:55 PM Room C (11 Bildg.2F 1106)

Chair:Xiaoyu Zheng(JAEA)

3:50 PM - 4:05 PM

[1C11] Advanced Filtered Containment Venting System by Ionic Liquid

(1) Overview of the System

*Daiki Nunokawa¹, Kazuo Tominaga¹, Sohei Fukui¹ (1. HGNE)

4:05 PM - 4:20 PM

[1C12] Advanced Filtered Containment Venting System by Ionic Liquid

(2) Removal Mechanism of Organic Iodine by an Ionic Liquid

*Sohei Fukui¹, Yoichi Wada¹, Daiki Nunokawa¹, Kazuo Tominaga¹ (1. HGNE)

4:20 PM - 4:35 PM

[1C13] Advanced Filtered Containment Venting System by Ionic Liquid

(3) Removal Effect of Organic Iodine by an Ionic Liquid in Coexistence with Water

*Taizo Kanai¹, Sohei Fukui², Daiki Nunokawa², Yoichi Wada², Kazuo Tominaga² (1. CRIEPI, 2. HGNE)

4:35 PM - 4:50 PM

[1C14] Development of a filter vent system to prevent exposure to radioactive noble gases

(5)Effects of accident sequences and systems on plant behavior and exposure

*Takahisa Matsuzaki¹, Daiki Nunokawa¹, Motoi Tanaka¹, Kazuaki Kito¹, Tadashi Fujii¹, Yasutaka Aoki², Yasuyuki Asami³ (1. HGNE, 2. TOSHIBA ESS, 3. TEPCO HD)

Time reserved for Chair （4:50 PM - 4:55 PM）

Oral presentation

[2C01-06] Development of Evaluation Methods, Safety Requirements for New NPPs

Tue. Mar 14, 2023 10:15 AM - 11:55 AM Room C (11 Bildg.2F 1106)

Chair:Murakami Kenta(UTokyo)

10:15 AM - 10:30 AM

[2C01] Enhancement of Analysis Method for Important Phenomena of Severe Accidents at Reprocessing Plant

(H-5)Verification of Prediction Capability for Flame Model by Using the Burning Velocity Model and the Detonation Model in Full-Scale Facility

*Ichiro Nakamori¹, Takayuki Tomizuka¹, Atsuo Takahashi¹, Fumitomo Onishi¹, Takashi Kodama², Yoshikazu Tamauchi², Naoya Sato², Nobuyuki Tsuboi⁴, Koichi A. Hayashi³ (1. Advancesoft Corporation, 2. Japan Nuclear Fuel Limited, 3. COSMO SILVA Inc., 4. Kyushu Institute of Technology)

10:30 AM - 10:45 AM

[2C02] Framework for Intelligent Generation of Countermeasures against Emergencies at Nuclear Power Plants

*Satoshi Abe¹, Kazuyuki Demachi¹, Shi Chen¹ (1. UTokyo)

10:45 AM - 11:00 AM

[2C03] Study on fire modeling in evaluation for event progression in glove box fire

*Makoto TAKIZAWA¹, Tomoaki SAKURAI¹ (1. NRA)

11:00 AM - 11:15 AM

[2C04] Elaboration of thermal radiation effect evaluation for wildfire with visibility analysis

*Kaito Enomoto¹, Daisuke Fujiwara¹, Hiroshi Shirai¹, Hisayuki Kyo¹, Motoki Kato¹ (1. TEPSYS)

11:15 AM - 11:30 AM

[2C05] Development of evaluation methods for High Energy Arcing Faults (HEAF)

(1)Thermal hydraulics evaluation method for Cu vapor

*Tomoaki SAKURAI¹, Hajime KABASHIMA¹, Fumio KASAHARA¹, Toshihiro Yoshii² (1. NRA, 2. FMIC R&D INC.)

11:30 AM - 11:45 AM

[2C06] Safety requirements for new NPPs in Japan and its feasibility

No.2: Proposal for safety requirements

*Hiroshi YAMAGATA¹ (1. Nagaoka University of Technology)

Time reserved for Chair （11:45 AM - 11:55 AM）

Sessions

IV. Nuclear Plant Technologies » 402-1 Nuclear Safety Engineering (Safety Design, Safety Assessment/Analysis, Management)

[1C01-06] SA Analysis

(1) Planning of SIMMER-V development and outline of code

(2) Verification of fuel pin thermal behavior

(1)Analysis for International standard problem ISP-47/ThAI on containment thermal hydraulics

(2) Detailed Analysis of FP aerosol behavior

[1C07-10] FP Behavior

(1) Overview of Research and Development

(2) Preliminary Evaluation of Behavior of Iodine by Chemical Equilibrium Calculations

(3) Thermal Behavior of Sodium Iodide in Inert Atmosphere

4. Evaluation of chemical reaction model in SA codes

[1C11-14] FCVS

(1) Overview of the System

(2) Removal Mechanism of Organic Iodine by an Ionic Liquid

(3) Removal Effect of Organic Iodine by an Ionic Liquid in Coexistence with Water

(5)Effects of accident sequences and systems on plant behavior and exposure

[2C01-06] Development of Evaluation Methods, Safety Requirements for New NPPs

(H-5)Verification of Prediction Capability for Flame Model by Using the Burning Velocity Model and the Detonation Model in Full-Scale Facility

(1)Thermal hydraulics evaluation method for Cu vapor

No.2: Proposal for safety requirements

Authentication