Analysis of Halden overpressure tests using the FALCON code
|
|
- Eileen Grant
- 6 years ago
- Views:
Transcription
1 WIR SCHAFFEN WISSEN HEUTE FÜR MORGEN G. Khvostov, W. Wiesenack Analysis of Halden overpressure tests using the FALCON code Enlarged Halden Programme Group Meeting 216
2 Contents Scope and goals of the study Main data Models and methods Results Thermal response to overpressure in IFA-61.1 (BWR) Thermal response to overpressure in IFA-61.1 (/3/5) (PWR) Response of cladding elongation to overpressure Rod FGR and cladding failure Conclusions /STARS/KG41 - ( 2 / 13 )
3 Scope and goals of the study Four tests of the IFA-61 series, using uranium dioxide as fuel material, were analyzed with the FALCON code Sample origin Local parameters after BI Test Vendor/NPP Fuel type Segment type Burn-up, MWd/kgU IFA-61.1 WSE / KKL 1X1 SVEA-96+ BWR IFA-61.1 Siemens- KWU GE / KKG 14X14 PWR A segment cut from integral rod A segment from specially designed segmented rod A segment from specially designed segmented rod Fast fluence, 1 21 n/cm2 Oxide thickness, microns Overpressure sequence, bar (5-1-15) IFA IFA-61.5 Framatom / EDF Gravelines 5 17X17 PWR General goals: verify the code s ability to treat lift-off find out governing processes and specific features of high burnup fuel behaviour explore critical conditions for rod failure caused by very high internal gas pressure /STARS/KG41 - ( 3 / 13 )
4 Cladding elongation, mm Temperature, o C Main data CL temperature in TC-section Normalized temperature Data for fuel temperature in TC-section of IFA-61.1: Measured temperature. Normalized temperature at LHRTC=11 kw/m. T fn = T f T c LHR LHR + T c 65 Normalized temperature against calculated temperature-variation across the pellet radius 6 55 T fn = T f LHR LHR Time, eph SST cladding elongation shows significant difference, likely depending on degree of bonding PWR: increasing BWR: decreasing Note: The data taken into account, but remaining beyond the scope of the paper, are: Cladding elongation during power ramps; Noise analysis for transient elongation; measurement of TH diameter Raw data for cladding elongation in: IFA IFA IFA IFA Time, eph /STARS/KG41 - ( 4 / 13 )
5 Models and methods Use of a research version of EPRI s FALCON code coupled with the mechanistic model, GRSW-A, for fission gas release and gaseous-bubble swelling RIP is treated as code input, as function of time Use of code restart to simulate re-fabrication after BI Rod overpressure, bar 35 Raw data for rod overpressure in: IFA IFA IFA IFA Time, eph FE model is designed to simulate thermal response in TC section, in consideration of its details /STARS/KG41 - ( 5 / 13 )
6 Cladding elongation, mm Models and methods TM calculation for two limit cases: without bonding and with complete bonding Cladding elongation: Measurement. Calculation without bonding. Calculation with bonding. AAFB=33% Burn-up, MWd/kgU Use of the two calculation for decomposition of measured elongation dl = AFB dl db exp db w bonding + (1 AFB) dl db w/o bonding Proposed estimation of Apparent Fractional Bonding (AFB) in the sample /STARS/KG41 - ( 6 / 13 )
7 Results 5 4 No thermal feedback up to overpressure of 15 bar. Thermal feedback starts at overpressure of 175 bar. Gap opening at overpressure of 25 bar. Rod pressure, MPa Thermal response to overpressure in IFA61.1 (BWR) Rod pressure 3 2 Coolant pressure Burnup, MWd/kgU Normalized temperature in TC-section: Measurement. Running average for measured temperature. Calculation for normalized centreline temperature. Calculation for normalized temperature-variation accross pellet radius (Tc-Ts) Burnup, MWd/kgU 6 Calculated diametral gap size. Pellet-cladding contact pressure Radial gap size, microns Contact pressure, MPa Normalized temperature, oc Normalized temperature variation, oc Burnup, MWd/kgU /STARS/KG41 - ( 7 / 13 )
8 Normalized temperature in TC-section: Measurement. Calculation w/o bonding. Calculation assuming bonding. 12 Thermal response to overpressure in IFA-61.1 (/3/5) (PWR) The model, assuming pellet-cladding bonding, inhibits gap opening. For the periods with overpressure maintained at 2 bar, 25 bar and 3 bar, a perfect agreement is obtained when bonding is assumed. Normalized temperature, oc Over-pressure, bar Results Overpressure Time, hours Splashes in temperature at power fluctuations A hysteresis: rearrangement of the fuel fragments resulting in circumferential crack opening LHGR in TC-section: 74 Raw data. FALCON input (condesed). 73 Temperature, oc LHRTC, kw/m P = 2 bar Normalized temperature, oc Normalized temperature in TC-section: Measurement. Linear fit to measurement. Running average for selected data-set. Calculation for normalized temperature variation accross pellet radius (Tc-Ts) Time, h LHRTC, kw/m Burnup, MWd/kgU /STARS/KG41 - ( 8 / 13 ) Normalized temperature variation, oc
9 Cladding elongation, mm Cladding elongation, mm Results Response of cladding elongation to overpressure Assumption of bonding in calculation maximizes impact of fuel swelling on cladding elongation under over-pressure The degree of bonding is quantified with the AFB number (current and test average), viz.: an effective fraction (%) of pellet surface bonded with cladding Test Bu dl_db-exp dl_db-nb dl_db-b AAFB CAFB STD,% The degree of pellet-cladding bonding in the BWR fuel segment is lower than in the PWR fuel segments (ca. 3 % vs 7 %) Bonding was not broken in the PWR tests throughout experiments, even though the applied maximum overpressure was very high (3 bar in IFA-61.1) Burn-up, MWd/kgU /STARS/KG41 - ( 9 / 13 ) Cladding elongation: Measurement. Calculation without bonding. Calculation with bonding. Cladding elongation: Measurement. Calculation without bonding. Calculation with bonding. T c =36 o C; AAFB=83 16 % P=175 bar AAFB=33% IFA-61.1 T c =316 o C; AAFB=61 13 % IFA Burnup, MWd/kgU
10 Temperature, K FGR, % Fission gas release, % Results Rod FGR and cladding failure The calculated FGR is a smooth continuation of the FGR at the end of BI No effect of thermally induced feedback is predicted Base Irradiation Overpressure tests Centreline temperature during BI in segments used for: IFA IFA IFA Empirical FGR threshold. Relative FGR during BI in a segment used for: IFA IFA IFA Calculated relative FGR during: IFA IFA IFA IFA Burn-up, MWd/kgU Pellet burnup, MWd/kgU According to the modelling, no considerable deterioration of rod reliability resulting from applied test conditions of overpressure can be expected, in spite of rather severe overpressure utilized in the tests. none of the test rods failed. This is consistent with the results of the calculations. Need of additional single effect experiments resulting in cladding failure due to the predicated lift-off phenomenon /STARS/KG41 - ( 1 / 13 )
11 Conclusions The FALCON code has been shown to be applicable to best-estimate predictive analysis of the overpressure tests using fuel without, or weak pellet-cladding bonding, and scoping analysis of the tests with fuels where stronger pellet-cladding bonding occurs. Significant effects of bonding and fuel cracking/relocation on the thermal and mechanical behaviour of highly over-pressurized rods, with a fuel burnup of ca. 6 MWd/kgU, have been identified. The effect of bonding is particularly pronounced in the tests with the fuel segments preirradiated in PWRs. The identified effects are beyond the current traditional fuel-rod licensing analysis methods. Derivation of appropriate acceptance criteria and model parameterization, which is important for the corresponding licensing analysis, would need additional single effect experiments resulting in cladding failure due to lift-off phenomenon /STARS/KG41 - ( 11 / 13 )
12 Wir schaffen Wissen heute für morgen The main goals of the study are basically reached: - All the tests, as planned, successfully analyzed. - Considerable effects of bonding and fuel cracking/relocation identified. - The identified effects are beyond current traditional licensing analysis. The paper and presentation outline the main results, while the whole activity is described in PSI Report TM
13 Wir schaffen Wissen heute für morgen My thanks go to ESB OECD HRP
14 Back-up slides /STARS/KG41 - ( 14 / 13 )
15 Contact pressure, MPa Radial gap, m Normalized temperature, o C IFA-61.1 (BWR) 7 Thermal response to overpressure in IFA-61.1 (BWR) Calculated and measured normalized temperature (top) in TC-section against contact pressure and gap size (bottom) at the BOC4 in IFA-61.1 Complex interplay of effects of temporary irradiation with lowpower and overpressure and use of He at EOC3, followed by gap opening after overpressure-ramp to 25 bar Signs of secondary gap closure after power/overpressure dips and rises, presumably due to fuel fragment relocation into the open gap space and reduced cladding creep-out rate 35 3 Cycle 3 Cycle E-6 4.5E-6 4E-6 Cycle 3 Ar He Ar Cycle 4 Calculation assuming Ar as filler gas. Calculation assuming He as filler gas. Measurement. Running average for measurement Cycle 3 Cycle E-6 3E E E E-6 1E-6 5 5E Time, h Time, h /STARS/KG41 - ( 15 / 13 )
16 Normalized temperature, o C Rod pressure, MPa Gap size, micron Rod pressure, bar LHR, W/cm IFA-61.1 (BWR) Thermal response to overpressure in IFA-61.1 (BWR) 4 3 Assumed idealized BCs for simplified analysis of IFA-61.1 test Time, hours Calculated normalized temperature in IFA assuming hypothesized BCs and initial open-gap condition Calculation with idealized BC.: Normalized temperature. Daimetral gap size. LHR = 11 kw/m +5 bar Effects of primary- and secondary creep. Effect of irradiation at zero-overpressure that results in temperature decrease due to gap reduction P= 15 bar +25 bar +25 bar Rod peressure Coolant peressure Time, hours /STARS/KG41 - ( 16 / 13 )
17 Hoop stress, MPa IFA-61.1 (BWR) Mechanical behaviour of IFA-61.1 (BWR) Calculated cladding hoop stress as function of LHR in TCsection for three power-ramps in IFA-61.1 test Mitigation of the contact and gap opening (lift-off) would start, according to the calculation, at LHR of 8.6 kw/m and 1.4 kw/m at overpressure of 15 bar and 2 bar, respectively Calculated hoop stress at different overpressure levels: at 15 bar (2726 eph). at 2 bar (463 eph). at 25 bar (6577 eph) LHR, kw/m Calculated and measured cladding diameter during IFA-61.1 test Calculation shows good agreement with post-test measurement /STARS/KG41 - ( 17 / 13 )
18 Effective bonding fraction B, % Effective bonding fraction B, % Relative linear elongation rate, % per 1 MWd/kgU IFA-61.1 (BWR) Mechanical behaviour of IFA-61.1 (BWR) Measure and calculated elongation rate in IFA-61.1 test using two FALCON models Estimated SST elongation rate at P=2 bar: based on measurement. based on the model with bonding. based on the model without bonding Burn-up, MWd/kgU Estimated current values of apparent fractional bonding (CAFB) in IFA P=175 bar 8 P=2bar Burn-up, MWd/kgU Burn-up, MWd/kgU /STARS/KG41 - ( 18 / 13 )
19 Diametral gap size, microns Over-pressure, bar Temperature, o C IFA-61.1 (PWR) Thermal response to overpressure in IFA-61.1 (PWR) Centreline temperature in TC-section: Measured. Calculated assuming bonding. Calculated after assumed de-bonding. 2 bar 25 bar 3 bar 76 Measured response of temperature in TCsection to overpressure ramps in IFA-61.1 test vs. calculation using two FALCON models Calculation assuming breach of bonding predicts the geometric gap opening immediately after the overpressure ramp to 25 bar, followed by the fast increase due to primary- and secondary- creep of the cladding Consequently, the calculated normalized temperature grows up drastically, significantly exceeding the measurement Calculation Restart Time, hours Rod overpressure. Calculated gap-size assuming bonding. Calculated gap-size after assumed de-bonding. Calculation Restart Overpressure Gap size Time, hours /STARS/KG41 - ( 19 / 13 )
20 Normalized temperature, o C Over-pressure, bar IFA-61.5 (PWR) Thermal response to overpressure in IFA-61.5 (PWR) Calculated normalized temperature in TCsection against rod overpressure during IFA test, using two FALCON models Normalized temperature in TC-section: Measurement. Calculation w/o bonding. Calculation assuming bonding The model assuming pellet-cladding bonding shows good agreement with the measurement, whereas the model with the bonding switched off overpredicts temperature T c = 36 o C Overpressure T c = 316 o C Time, hours /STARS/KG41 - ( 2 / 13 )
21 Effective bonding fraction B, % Effective bonding fraction B, % Relative linear elongation rate, % per 1 MWd/kgU IFA-61.1 (PWR) Mechanical behaviour of IFA-61.1 (PWR) Measure and calculated elongation rate in IFA-61.1 test using two FALCON models P = 2 bar Estimated SST elongation rate: based on measurement. based on the model with bonding. based on the model without bonding Burn-up, MWd/kgU Estimated current values of apparent fractional bonding (CAFB) in IFA % P = 2 bar P = 15 bar ca. 88 % Burn-up, MWd/kgU Burn-up, MWd/kgU /STARS/KG41 - ( 21 / 13 ) 1
SENSITIVITY ANALYSIS OF THE FIRST CIRCUIT OF COLD CHANNEL PIPELINE RUPTURE SIZE FOR WWER 440/270 REACTOR
PROCEEDINGS OF THE YEREVAN STATE UNIVERSITY Physical and Mathematical Sciences 216, 2, p. 57 62 P h y s i c s SENSITIVITY ANALYSIS OF THE FIRST CIRCUIT OF COLD CHANNEL PIPELINE RUPTURE SIZE FOR WWER 44/27
More informationInjector Dynamics Assumptions and their Impact on Predicting Cavitation and Performance
Injector Dynamics Assumptions and their Impact on Predicting Cavitation and Performance Frank Husmeier, Cummins Fuel Systems Presented by Laz Foley, ANSYS Outline Overview Computational Domain and Boundary
More informationExperimental Verification of Integrated Pressure Suppression Systems in Fusion Reactors at In-Vessel Loss-of -Coolant Events
Experimental Verification of Integrated Pressure Suppression Systems in Fusion Reactors at In-Vessel Loss-of -Coolant Events K. Takase 1), H. Akimoto 1) 1) Japan Atomic Energy Research Institute (JAERI),
More informationNKS PODRIS project. Importance of inspection reliability assumptions on piping failure probability estimates
NKS PODRIS project Importance of inspection reliability assumptions on piping failure probability estimates Kaisa Simola, Otso Cronvall & Ilkka Männistö (VTT) Jens Gunnars, Peter Dillström & Lars Averlind
More informationTESTING OF BELIMO PRESSURE INDEPENDENT CHARACTERIZED CONTROL VALVES
TESTING OF BELIMO PRESSURE INDEPENDENT CHARACTERIZED CONTROL VALVES November, 25 Submitted by: Iowa Energy Center Address: DMACC, 26 S. Ankeny Blvd. Ankeny, IA 521 Phone: 515.965.755 Fax: 515.965.756 Web
More informationLoss of Normal Feedwater Analysis by RELAP5/MOD3.3 in Support to Human Reliability Analysis
Loss of Normal Feedwater Analysis by RELAP5/MOD3.3 in Support to Human Reliability Analysis ABSTRACT Andrej Prošek, Borut Mavko Jožef Stefan Institute Jamova cesta 39, SI-1 Ljubljana, Slovenia Andrej.Prosek@ijs.si,
More informationVisual Observation of Nucleate Boiling and Sliding Phenomena of Boiling Bubbles on a Horizontal Tube Heater
Proceedings of the 2 nd World Congress on Mechanical, Chemical, and Material Engineering (MCM'16) Budapest, Hungary August 22 23, 216 Paper No. HTFF 146 DOI:.11159/htff16.146 Visual Observation of Nucleate
More informationAssessment of correlations between NDE parameters and tube structural integrity for PWSCC at U-bends
Assessment of correlations between NDE parameters and tube structural integrity for PWSCC at U-bends S. Bakhtiari, T. W. Elmer, Z. Zeng and S. Majumdar Nuclear Engineering Division Argonne National Laboratory
More informationSTRIP EDGE SHAPE CONTROL
STRIP EDGE SHAPE CONTROL Gary Boulton, Tino Domanti, Terry Gerber, Glen Wallace Industrial Automation Services The control of shape in the strip edge region remains a significant challenge for shape control
More informationDetermination of the Design Load for Structural Safety Assessment against Gas Explosion in Offshore Topside
Determination of the Design Load for Structural Safety Assessment against Gas Explosion in Offshore Topside Migyeong Kim a, Gyusung Kim a, *, Jongjin Jung a and Wooseung Sim a a Advanced Technology Institute,
More informationVerification and validation of computer codes Exercise
IAEA Safety Assessment Education and Training (SAET) Programme Joint ICTP- IAEA Essential Knowledge Workshop on Deterministic Safety Assessment and Engineering Aspects Important to Safety Verification
More informationUniversity of Cincinnati
Mapping the Design Space of a Recuperated, Recompression, Precompression Supercritical Carbon Dioxide Power Cycle with Intercooling, Improved Regeneration, and Reheat Andrew Schroder Mark Turner University
More informationJustification of Risk Reduction through In-Service Inspection / REDUCE
NUGENIA+ WP6.12 Justification of Risk Reduction through In-Service Inspection / REDUCE Jens Gunnars Inspecta Technology AB jens.gunnars@inspecta.com WP6.12 Task Leader NUGENIA+ Final Seminar, Helsinki
More informationProf. B V S Viswanadham, Department of Civil Engineering, IIT Bombay
43 Module 3: Lecture - 5 on Compressibility and Consolidation Contents Stresses in soil from surface loads; Terzaghi s 1-D consolidation theory; Application in different boundary conditions; Ramp loading;
More informationCable in Conduit Conductor (CICC) quench modelling
DEMO SAMPLE Cable in Conduit Conductor (CICC) quench modelling This demo gives an example of quench simulation for a Central Solenoid (CS). CS is divided into geometrically identical sections (see Fig.
More informationHard or Soft Shut-in : Which is the Best Approach?
HARD - SOFT shut-in? Hard or Soft Shut-in : Which is the Best Approach? March '93 INTRODUCTION There is now reasonable acceptance through-out the industry for the use of a hard shut-in procedure following
More informationEffects of Delayed RCP Trip during SBLOCA in PWR
Effects of Delayed RCP Trip during SBLOCA in PWR Javier Montero Technical University of Madrid, Alenza 4, 28003, Madrid, Spain fj.montero@alumnos.upm.es Cesar Queral, Juan Gonzalez-Cadelo cesar.queral@upm.es,
More informationUniversity of Cincinnati
Mapping the Design Space of a Recuperated, Recompression, Precompression Supercritical Carbon Dioxide Power Cycle with Intercooling, Improved Regeneration, and Reheat Andrew Schroder Mark Turner University
More informationMechanical Stabilisation for Permanent Roads
Mechanical Stabilisation for Permanent Roads Tim Oliver VP Global Applications Technology Tensar International toliver@tensar.co.uk Effect of geogrid on particle movement SmartRock Effect of geogrid on
More informationLOW PRESSURE EFFUSION OF GASES revised by Igor Bolotin 03/05/12
LOW PRESSURE EFFUSION OF GASES revised by Igor Bolotin 03/05/ This experiment will introduce you to the kinetic properties of low-pressure gases. You will make observations on the rates with which selected
More informationKAYDON RING & SEAL, INC.
KAYDON RING & SEAL, INC. K-DGS Series Dry Gas Seals KAYDON K-DGS Dry Gas Seals K-DGS Configurations Single Seal (K-DGS) Compact and economical, the single seal configuration is recommended for non-toxic
More informationUSA (Bartlett, IL) Division
USA (Bartlett, IL) Division USA (Bartlett, IL) Division 100+ years Manufacturing Experience Six Sigma Black Belt (2) 350,000 Sq. Ft. Manufacturing & Office Total Program Development & Management Product
More informationHaynes 214 (UNS N07214)
Haynes 214 (UNS N07214) Haynes 214 is a Nickel-Iron-Chromium-Aluminum alloy that offers elevated temperature oxidation resistance up to 1750oF. It is a wrought heat resistant alloy that is used in electronic
More informationREGULATORY OBSERVATION
RO unique no.: REGULATORY OBSERVATION REGULATOR TO COMPLETE RO-ABWR-0046 Date sent: 20 th April 2015 Acknowledgement required by: 08 th May 2015 Agreement of Resolution Plan required by: 14 th May 2015
More informationAutodesk Moldflow Communicator Process settings
Autodesk Moldflow Communicator 212 Process settings Revision 1, 3 March 211. Contents Chapter 1 Process settings....................................... 1 Profiles.................................................
More informationNumerical simulation of the ALBA s synchrotron cooling system response to pump start-up and shut-down Page 1
Numerical simulation of the ALBA s synchrotron cooling system response to pump start-up and shut-down Page 1 Abstract This project consists of the development and validation of a numerical model to simulate
More informationPressure and Composition of Gas Mixtures in Fuel Rods for Pressurised Water Reactors by an Ultrasonic Sensor
Pressure and Composition of Gas Mixtures in Fuel Rods for Pressurised Water Reactors by an Ultrasonic Sensor F.AL Gabr 1, JY. Ferrandis 1, D. Baron 2, P. Chantoin 3 1 Laboratoire d Analyse des Interfaces
More informationInvestigation of Stresses in Ring Stiffened Circular Cylinder
International Journal of Engineering and Technical Research (IJETR) ISSN: 2321-869, Volume-2, Issue-9, September 214 Investigation of Stresses in Ring Stiffened Circular Cylinder Neetesh N. Thakre, Dr.
More informationUSE OF THE EXCEEDANCE CURVE APPROACH IN OCCUPIED BUILDING RISK ASSESSMENT
USE OF THE EXCEEDANCE CURVE APPROACH IN OCCUPIED BUILDING RISK ASSESSMENT Kieran J Glynn, Advisor Major Accident Risk, BP, UK The exceedance curve approach was developed following the issue of the 2003
More informationUNIT 15 WATER HAMMER AND SURGE TANKS
UNT 15 WATER HAMMER AND SURGE TANKS Structure 15.1 ntroduction Objectives 15.2 Water Hammer 15.2.1 Expression for Rise in Pressure 15.3 Rapid Acceleration of Flow 15.4 Surge Tanks 15.5 Summary 15.6 Keywords
More informationINTERACTION BETWEEN WIND-DRIVEN AND BUOYANCY-DRIVEN NATURAL VENTILATION Bo Wang, Foster and Partners, London, UK
INTERACTION BETWEEN WIND-DRIVEN AND BUOYANCY-DRIVEN NATURAL VENTILATION Bo Wang, Foster and Partners, London, UK ABSTRACT Ventilation stacks are becoming increasingly common in the design of naturally
More informationPressure Strength Test Requirements for Hermetic Refrigerant Compressor Housings Using Fatigue Analysis
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 1998 Pressure Strength Test Requirements for Hermetic Refrigerant Compressor Housings Using
More informationInspection Credit for PWSCC Mitigation via Peening Surface Stress Improvement
Inspection Credit for PWSCC Mitigation via Peening Surface Stress Improvement Glenn A. White, Kyle P. Schmitt, Kevin J. Fuhr, Markus Burkardt, and Jeffrey A. Gorman Dominion Engineering, Inc. Paul Crooker
More informationDesign and Analysis of Reactor Dish Vessel
IJIRST International Journal for Innovative Research in Science & Technology Volume 3 Issue 11 April 2017 ISSN (online): 2349-6010 Design and Analysis of Reactor Dish Vessel Aniket D. Patil PG Student
More informationSeries 3730 and Series 3731 EXPERTplus Valve Diagnostics with Partial Stroke Test (PST)
Series 3730 and Series 3731 EXPERTplus Valve Diagnostics with Partial Stroke Test (PST) Application Positioner firmware for early detection of control valve faults giving maintenance recommendations. Valid
More informationDRAFT REGULATORY GUIDE DG-1074
Draft Guide DG-1074 - December 1998 Page 1 of 55 U.S. NUCLEAR REGULATORY COMMISSION OFFICE OF NUCLEAR REGULATORY RESEARCH DRAFT REGULATORY GUIDE December 1998 Division 1 Draft DG-1074 Contact: E.L. Murphy
More informationData Sheet T 8389 EN. Series 3730 and 3731 Types , , , and. EXPERTplus Valve Diagnostic
Data Sheet T 8389 EN Series 3730 and 3731 Types 3730-2, 3730-3, 3730-4, 3730-5 and Type 3731-3 Electropneumatic Positioners EXPERTplus Valve Diagnostic Application Positioner firmware to detect potential
More information1 SE/P-02. Experimental and Analytical Studies on Thermal-Hydraulic Performance of a Vacuum Vessel Pressure Suppression System in ITER
1 SE/P-2 Experimental and Analytical Studies on Thermal-Hydraulic Performance of a Vacuum Vessel Pressure Suppression System in ITER K. Takase 1), H. Akimoto 1) 1) Japan Atomic Energy Research Institute,
More informationASSESSMENT AND ANALYSIS OF PIPELINE BUCKLES
ASSESSMENT AND ANALYSIS OF PIPELINE BUCKLES GE Oil & Gas PII Pipeline Solutions Inessa Yablonskikh Principal Consultant Aberdeen, November, 14 th 2007 Assessment And Analysis Of Pipeline Buckles Introduction
More informationINF.41/Add.1/Rev.1. Economic Commission for Europe Inland Transport Committee
Economic Commission for Europe Inland Transport Committee Working Party on the Transport of Dangerous Goods INF.41/Add.1/Rev.1 Joint Meeting of the RID Committee of Experts and the Working Party on the
More informationPLANT OPERATIONS AND TECHNOLOGY I & II: REAL TIME FURNACE AIR IN- LEAKAGE MONITORING ON COAL, OIL AND/OR GAS FIRED BOILERS
Electric Power Conference 2010 May 19th, 2010, Baltimore, MD PLANT OPERATIONS AND TECHNOLOGY I & II: REAL TIME FURNACE AIR IN- LEAKAGE MONITORING ON COAL, OIL AND/OR GAS FIRED BOILERS Stephen Hall Senior
More informationKiefner & Associates, Inc.
Kiefner & Associates, Inc. KAPA FAQs What does KAPA stand for? KAPA is an acronym for Kiefner & Associates Pipe Assessment. What does KAPA do? KAPA calculates an estimated failure pressure of a pipe affected
More informationNE 405/505 Exam 2 Spring 2015
NE 405/505 Exam 2 Spring 2015 (80%) 1) A PWR with UTSGs is operating at 100% power, BOC, with control rods all out in automatic control when a failure in the speed pump controller results in all feed pumps
More informationChapter 20. Planning Accelerated Life Tests. William Q. Meeker and Luis A. Escobar Iowa State University and Louisiana State University
Chapter 20 Planning Accelerated Life Tests William Q. Meeker and Luis A. Escobar Iowa State University and Louisiana State University Copyright 1998-2008 W. Q. Meeker and L. A. Escobar. Based on the authors
More informationSUBPART C - STRUCTURE
SUBPART C - STRUCTURE GENERAL CS 23.301 Loads (a) Strength requirements are specified in terms of limit loads (the maximum loads to be expected in service) and ultimate loads (limit loads multiplied by
More informationCompaction, Permeability, and Fluid Flow in Brent-type Reservoirs Under Depletion and Pressure Blowdown
Compaction, Permeability, and Fluid Flow in Brent-type Reservoirs Under Depletion and Pressure Blowdown by Øystein Pettersen, CIPR CIPR Technology Seminar 2010 Outline Experimental & Field Observations
More informationAnalysis of Shear Lag in Steel Angle Connectors
University of New Hampshire University of New Hampshire Scholars' Repository Honors Theses and Capstones Student Scholarship Spring 2013 Analysis of Shear Lag in Steel Angle Connectors Benjamin Sawyer
More informationExekon. Nuclear. ý C)C) ý. May 9, 2001 SVP U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.
Exelon Generation Ouad Cities Generating Station 22710 206th Avenue North Cordova, I L 61242-9740 Tel 309-654-2241 May 9, 2001 www.exelon corp.com Exekon. Nuclear SVP-01-059 U. S. Nuclear Regulatory Commission
More informationDevelopment of a new bench for puncturing of irradiated fuel rods in STAR hot laboratory
Development of a new bench for puncturing of irradiated fuel rods in STAR hot laboratory B. Petitprez, P. Silvestre, P. Valenza, A. Boulore (Fuel Research Department, CEA Cadarache), T. David (Sealing
More informationHermetic Compressor Manifold Analysis With the Use of the Finite Element Method
Purdue University Purdue e-pubs International Compressor Engineering Conference School of Mechanical Engineering 2008 Hermetic Compressor Manifold Analysis With the Use of the Finite Element Method Rinaldo
More informationJEDEC STANDARD. Temperature Cycling. JESD22-A104C (Revision of JESD22-A104-B) JEDEC SOLID STATE TECHNOLOGY ASSOCIATION MAY 2005
JEDEC STANDARD Temperature Cycling JESD22-A104C (Revision of JESD22-A104-B) MAY 2005 JEDEC SOLID STATE TECHNOLOGY ASSOCIATION NOTICE JEDEC standards and publications contain material that has been prepared,
More informationARA PROJECT Prepared by: Peter T. Dzwilewski Applied Research Associates, Inc Shaffer Parkway Littleton, Colorado 80127
ARA PROJECT 001974 WATER SHOCK PREDICTION FOR EXPLOSIVE REMOVAL OF OFFSHORE STRUCTURES: UNDERWATER CALCULATOR (UWC) VERSION 2.0 UPDATE BASED UPON FIELD DATA Prepared by: Peter T. Dzwilewski Applied Research
More information36 th Gas-Lift Workshop. Reverse Flow Check Valve Reliability and Performance Testing of Gas Lift Barrier Check Valves
36 th Gas-Lift Workshop Stavanger, Norway February 4 8, 2013 Reverse Flow Check Valve Reliability and Performance Testing of Gas Lift Barrier Check Valves Jason Kamphaus, Senior Project Manager Schlumberger
More informationAnalysis and Comparison of Calculation Methods for Physical Explosions of Compressed Gases
133 A publication of VOL. 32, 13 CHEMICAL ENGINEERING TRANSACTIONS Chief Editors: Sauro Pierucci, Jiří J. Klemeš Copyright 13, AIDIC Servizi S.r.l., ISBN 978-88-9568-23-5; ISSN 1974-9791 The Italian Association
More informationSAFETY DEMONSTRATION TESTS ON HTR-10
2nd International Topical Meeting on HIGH TEMPERATURE REACTOR TECHNOLOGY Beijing, CHINA,, September 22-24, 24 #Paper H6 SAFETY DEMONSTRATION TESTS ON HTR-1 Shouyin HU, Ruipian WANG, Zuying GAO Institute
More informationUncertainty in the analysis of the risk of BLEVE Fireball in process plants and in transportation
Uncertainty in the analysis of the risk of BLEVE Fireball in process plants and in transportation Joaquim Casal Centre for Studies on Technological Risk (CERTEC) EEBE, Universitat Politècnica de Catalunya
More informationTest Plans & Test Results
P09051 Oxygen Gas Sensor Test Plans & Test Results By: Samuel H Shin (EE), Jeremy Goodman (ue) Table of contents 1. TITLE: OXYGEN MEASUREMENT TEST VIA FABRICATED OXYGEN GAS SENSOR SYSTEM... 2 1.1. Introduction...
More informationSimulation of Experiment on Aerosol Behaviour at Severe Accident Conditions in the LACE Experimental Facility with the ASTEC CPA Code
Simulation of on Aerosol Behaviour at Severe Accident Conditions in the LACE al Facility with the CPA Code Ivo Kljenak, Borut Mavko Jožef Stefan Institute Jamova 39, SI-1000 Ljubljana, Slovenia Ivo.Kljenak@ijs.si,
More informationLife Extension of Mobile Offshore Units
Life Extension of Mobile Offshore Units Operation of classified aging units Sigmund Røine DNV Mobile Offshore Units in Operation Presentation content MOU integrity during operation Survey Principles for
More informationWM 07 Conference, February 25-March 1, 2007, Tucson, AZ
Assessment of Accident Risk for Transport of Spent Nuclear Fuel to Yucca Mountain Using Radtran 5.5 E.M. Supko Energy Resources International, Inc. 1015 18 th St., NW, Suite 650, Washington, DC 20036,
More informationStudy to Establish Relations for the Relative Strength of API 650 Cone Roof Roof-to-Shell and Shell-to- Bottom Joints
Thunderhead Engineering Consultants I N C O R P O R A T E D 1006 Poyntz Ave. Manhattan, KS 66502-5459 785-770-8511 www. thunderheadeng.com Study to Establish Relations for the Relative Strength of API
More informationMODELLING OF FUME EXTRACTORS C. R.
LD8 19th International Symposium of Ballistics, 7 11 May 21, Interlaken, Switzerland MODELLING OF FUME EXTRACTORS C. R. Woodley WS4 Guns and Warheads Department, Defence Evaluation and Research Agency,
More informationERCBH2S Frequently Asked Questions.
ERCBHS Frequently Asked Questions. Issue: Sweet pipeline tie-in to a sour gathering system A company is tying a sweet pipeline into one containing HS. Since the model assumes flow from either end of the
More informationGuidance on room integrity testing and its interpretation
Guidance Note Guidance on room integrity testing and its interpretation Guidance on room integrity testing and its interpretation 1. SCOPE... 6 2. INTRODUCTION AND BACKGROUND... 6 2.1. DEVELOPMENT OF INTEGRITY
More informationGEOTHERMAL WELL COMPLETION TESTS
GEOTHERMAL WELL COMPLETION TESTS Hagen Hole Geothermal Consultants NZ Ltd., Birkenhead, Auckland, New Zealand. ABSTRACT This paper reviews the measurements that are typically made in a well immediately
More informationAnalysis of Pressure Rise During Internal Arc Faults in Switchgear
Analysis of Pressure Rise During Internal Arc Faults in Switchgear ASANUMA, Gaku ONCHI, Toshiyuki TOYAMA, Kentaro ABSTRACT Switchgear include devices that play an important role in operations such as electric
More informationDesign Project 2 Sizing of a Bicycle Chain Ring Bolt Set ENGR 0135 Sangyeop Lee November 16, 2016 Jordan Gittleman Noah Sargent Seth Strayer Desmond
1 Design Project 2 Sizing of a Bicycle Chain Ring Bolt Set ENGR 0135 Sangyeop Lee November 16, 2016 Jordan Gittleman Noah Sargent Seth Strayer Desmond Zheng 2 Abstract This report will analyze our calculations,
More informationDevelopment of Membrane Moisture Separator for BWR Off-gas System
FR0200119 Development of Membrane Moisture Separator for BWR Off-gas System H. Ogata, S.Kawamura Tokyo Electric Power Company 1-3 Uchisaiwai-cho 1-Chome Chiyoda-ku Tokyo 100-0011 Japan E-mail: t1102524@tepco.co.jp,
More informationChallenges in Relief Design for Pilot Plants
Challenges in Relief Design for Pilot Plants Published on July 5, 2017 Michael Trainor Relief system design at the pilot scale presents unique challenges that don t always apply at the commercial scale.
More informationJournal of Applied Fluid Transients, Vol 1-1, April 2014 (3-1)
Modeling and Field Verification Study of Air Slam Conditions on kalanit Pipeline System By Yiftach Brunner & Sathish Kumar ir valves are integral part of long water transmission mains and are essential
More informationHEALTH AND SAFETY EXECUTIVE HM NUCLEAR INSTALLATIONS INSPECTORATE
HEALTH AND SAFETY EXECUTIVE HM NUCLEAR INSTALLATIONS INSPECTORATE New Reactor Generic Design Assessment (GDA) - Step 2 Preliminary Review Assessment of: Structural Integrity Aspects of AREVA/EdF EPR HM
More informationModelling Hazardous Consequences of a Shale Gas Well Blowout
Modelling Hazardous Consequences of a Shale Gas Well Blowout Sergey Martynov & Haroun Mahgerefteh (UCL) ShaleX Dissemination Event Texas A&M, Doha, Qatar 18 March 2018 1 Presentation Scope Motivation and
More informationQuantitative Risk of Linear Infrastructure on Permafrost Heather Brooks, PE. Arquluk Committee Meeting November 2015
Slide 1 Quantitative Risk of Linear Infrastructure on Permafrost Heather Brooks, PE Arquluk Committee Meeting November 2015 Welcome to the meeting of the committee for Arquluk s Quantitative Risk of Linear
More informationNuclear safety Lecture 4. The accident of the TMI-2 (1979)
Nuclear safety Lecture 4. The accident of the TMI-2 (1979) Ildikó Boros BME NTI 27 February 2017 The China Syndrome Opening: 16 March 1979 Story: the operator of the Ventana NPP tries to hide the safety
More informationPreparation and Installation of the Sanitary BDI-FLX Sensor and Connection to the BDI-FLX Interface Cable
GEP-6075 Rev. B 101574 Ref. I.D.: 16973 Preparation and Installation of the Sanitary BDI-FLX Sensor and Connection to the BDI-FLX Interface Cable WARNING USER SHOULD READ AND THOROUGHLY UNDERSTAND THESE
More informationPart III: Airfoil Data. Philippe Giguère
Part III: Airfoil Data Philippe Giguère Former Graduate Research Assistant (now with GE Wind Energy) Department of Aerospace Engineering University of Illinois at Urbana-Champaign Steady-State Aerodynamics
More informationEvaluating Roundabout Capacity, Level of Service and Performance
Roundabouts with Metering Signals ITE 2009 Annual Meeting, San Antonio, Texas, USA, August 9-12, 2009 Evaluating Roundabout Capacity, Level of Service and Performance Presenter: Rahmi Akçelik rahmi.akcelik@sidrasolutions.com
More informationTG-119 IMRT Commissioning Tests Instructions for Planning, Measurement, and Analysis Version 10/21/2009
TG-119 IMRT Commissioning Tests Instructions for Planning, Measurement, and Analysis Version 10/21/2009 DISCLAIMER: This publication and associated spreadsheets and digital files are based on sources and
More information2 FUSION FITTINGS FOR USE WITH POLYETHYLENE PRESSURE PIPES DESIGN FOR DYNAMIC STRESSES
Industry Guidelines Part 2 FUSION FITTINGS FOR USE WITH POLYETHYLENE PRESSURE PIPES DESIGN FOR DYNAMIC STRESSES ISSUE 5.1 Ref: POP10B 15 MAR 2010 Disclaimer In formulating this guideline PIPA has relied
More informationMoyno ERT Power Sections. Operational Guidelines
Moyno ERT Power Sections Operational Guidelines Moyno ERT Power Section Operational Guidelines Index 1. Introduction... 3 2. ERT Performance Graph Interpretation... 3 3. Elastomer Compression (Fit) Recommendations...
More informationAalborg Universitet. Published in: Proceedings of Offshore Wind 2007 Conference & Exhibition. Publication date: 2007
Aalborg Universitet Design Loads on Platforms on Offshore wind Turbine Foundations with Respect to Vertical Wave Run-up Damsgaard, Mathilde L.; Gravesen, Helge; Andersen, Thomas Lykke Published in: Proceedings
More informationB31.3 Piping Checklist and Rules of Thumb March 1, 2008 Program Version Paulin Research Group s
Paulin Research Group s PRG B31.3 Piping Checklist and Rules of Thumb Program User Guidelines Contents 1.0 Program Objective 2.0 Summary 3.0 Getting Started 4.0 Main Topics Addressed 5.0 Report Discussion
More informationLegendre et al Appendices and Supplements, p. 1
Legendre et al. 2010 Appendices and Supplements, p. 1 Appendices and Supplement to: Legendre, P., M. De Cáceres, and D. Borcard. 2010. Community surveys through space and time: testing the space-time interaction
More informationIntroduction to Roundabout Analysis Using ARCADY
Introduction to Roundabout Analysis Using ARCADY Toronto SimCap User Group Technical Event and ITE Toronto Section Social Event July 22, 2014 Phil Weber, P.Eng. GHD Inc. (The Home of Ourston Roundabout
More informationWind Farm Blockage: Searching for Suitable Validation Data
ENERGY Wind Farm Blockage: Searching for Suitable Validation Data James Bleeg, Mark Purcell, Renzo Ruisi, and Elizabeth Traiger 09 April 2018 1 DNV GL 2014 09 April 2018 SAFER, SMARTER, GREENER Wind turbine
More informationBest Practice RBI Technology Process by SVT-PP SIMTECH
Best Practice RBI Technology Process by SVT-PP SIMTECH We define the best practice in RBI as a proactive technology process which is used to formally and reliably optimise the inspection efforts for each
More informationWP2 Fire test for toxicity of fire effluents
Pagina 3 di 89 TRA SFEU VTT 22.6.2009 v.2 WP2 Fire test for toxicity of fire effluents Task 2.1.2 Development of small-scale test method for fire effluents Step 1: Use of modeling Plans according to DoW:
More informationCitation Journal of Thermal Science, 18(4),
NAOSITE: Nagasaki University's Ac Title Author(s) Noise characteristics of centrifuga diffuser (Noise reduction by means leading tip) Murakami, Tengen; Ishida, Masahiro; Citation Journal of Thermal Science,
More informationDamage mechanisms of indentations in raceways of rolling bearings
Royal Belgian Institute of Marine Engineers Damage mechanisms of indentations in raceways of rolling bearings By G.E. Morales Espejel and A. Gabelli, senior scientists, SKF Engineering & Research Centre,
More informationUnderstanding How the Appearance of Optical Fiber Splices Relates to Splice Quality
Understanding How the Appearance of Optical Fiber Splices Relates to Splice Quality Douglas Duke & David Mansperger Fusion Splicing Systems, AFL, Duncan, SC Doug.Duke@AFLglobal.com David.Mansperger@AFLglobal.com
More informationAcoustic Emission Testing of The Shell 0f Electromagnetic Valve
17th World Conference on Nondestructive Testing, 25-28 Oct 2008, Shanghai, China Acoustic Emission Testing of The Shell 0f Electromagnetic Valve guozhen XU 1, yiwei CHEN 1, zhihua CAO 2 ABSTRACT Shanghai
More informationSystem Operating Limit Definition and Exceedance Clarification
System Operating Limit Definition and Exceedance Clarification The NERC defined term System Operating Limit (SOL) is used extensively in the NERC Reliability Standards; however, there is much confusion
More informationHigh Density FPGA Package BIST Technique
High Density FPGA Package BIST Technique Douglas Goodman, James Hofmeister, Justin Judkins, PhD Ridgetop Group Inc. 3580 West Ina Road Tucson, AZ 85741 (520) 742-3300 Doug@ridgetop-group.com Abstract Over
More informationDraft workprogramme proposal for Regulation No 168/2013 Article 23 Environmental Effect Study. Giorgos Mellios & Leonidas Ntziachristos Emisia
Draft workprogramme proposal for Regulation No 168/2013 Article 23 Environmental Effect Study Giorgos Mellios & Leonidas Ntziachristos Emisia MCWG, Brussels, 19 Apr 2013 1 Revised estimates of L-category
More informationCONSIDERATION OF DENSITY VARIATIONS IN THE DESIGN OF A VENTILATION SYSTEM FOR ROAD TUNNELS
- 56 - CONSIDERATION OF DENSITY VARIATIONS IN THE DESIGN OF A VENTILATION SYSTEM FOR ROAD TUNNELS Gloth O., Rudolf A. ILF Consulting Engineers Zürich, Switzerland ABSTRACT This article investigates the
More informationBubble Dynamics in a Vibrating Liquid. By: James Wymer, Jaggar Henzerling, Aaron Kilgallon, Michael McIntire, Mohammed Ghallab
Bubble Dynamics in a Vibrating Liquid By: James Wymer, Jaggar Henzerling, Aaron Kilgallon, Michael McIntire, Mohammed Ghallab Background In the early 1960 s a series of rocket failures plagued leading
More informationBlast Damage Consideratons for Horizontal Pressure Vessel and Potential for Domino Effects
A publication of CHEMICAL ENGINEERING TRANSACTIONS VOL. 26, 2012 Guest Editors: Valerio Cozzani, Eddy De Rademaeker Copyright 2012, AIDIC Servizi S.r.l., ISBN 978-88-95608-17-4; ISSN 1974-9791 The Italian
More informationThe model of thermal response of Liquefied Petroleum Gas Tanks subjected to accidental heat input
Economic Commission for Europe Inland Transport Committee Working Party on the Transport of Dangerous Goods Joint Meeting of the RID Committee of Experts and the Working Party on the Transport of Dangerous
More informationCoke drum Monitoring & Inspection for Fatigue Life and Safety Improvement
Coke drum Monitoring & Inspection for Fatigue Life and Safety Improvement Amish B. Jani Asstt Vice President (Corrosion & Inspection), 2012 Coking.com, Ft. McMurray, Canada Presentation Tej Chadda Chief
More informationMIL-STD-883G METHOD
STEADY-STATE LIFE 1. PURPOSE. The steady-state life test is performed for the purpose of demonstrating the quality or reliability of devices subjected to the specified conditions over an extended time
More information