Advanced Reactor Support

SI has been supporting reactor system and fuel design for decades and provides cutting-edge technology and engineering methods to solve the industry’s most challenging material-structural design problems.
Key Capabilities and Experience for All Stages of Reactor Development
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Seismic Methodology

Seismic Methodology

  • Seismic Performance Criteria
  • Seismic Risk Assessment/PRA
    • Soil/Structure/Fluid Interaction
    • Structure & Component Fragility
    • Geotechnical Fragility

Design Optimization

Design Optimization

  • Buildings and Support Structures
  • Material Selection, Processing, and Testing
  • Design for Analysis (Optimize Transients, Reduce Conservatism)
  • Pre-conceptual to Final Design Maturation and Integration
  • Digital Twin Development

Seismic/Structural Evaluation

Seismic/Structural Evaluation

  • FEA Modeling, Dynamic Analysis
    • Modal, Response Spectrum, & Time History Analysis
    • Soil-structure Interaction (SASSI)
  • Equipment Qualification
    • By Testing and/or Analysis
    • Building Structure Code Evaluations
    • Aircraft Impact & Tornado Missile Evals
    • Large Component Drop Evaluations
  • Seismic Performance Criteria

Licensing Support

Licensing Support

  • Analytical & Inspection Program Development
  • Advisement for PSAR/FSAR
    • Health Physics Support
    • Dose Evaluation Support
    • Methods, Qualification, Testing, Validation
  • Regulatory Interactions (RAIs)
  • Emergency Plan and EAL Development
  • Pre-op Environmental Monitoring and Meteorology

Risk Assessment

Risk Assessment

  • Target Reliability Assessment (PRA)
  • Deterministic and Probabilistic Flaw Tolerance Evaluations
  • Leak-Before-Break Evaluations
  • Flaw Acceptance Standards & MANDE Strategies/Credit
  • Bounding Flaw Evaluations (planar vs. non-planar)
  • Emergency Planning / Procedures

Quality Assurance

Quality Assurance

  • Program & Procedure Development
  • Commercial Grade Dedication (NQA-1)

Fuel Design & Analysis

Fuel Design & Analysis

  • Fuel Performance Codes/Methods and Independent Validation
  • Accident/Transient Analyses
  • Neutronics & Thermal Hydraulics
  • Source Term & Consequence Analysis
  • Spent Fuel Storage (Design/Analysis)
  • Fuel Handling and Conditioning
  • Develop/Implement Test Programs

Conventional Island Systems

Conventional Island Systems

  • Turbine & Generator Performance
  • Process Steam Evaluations (FAC, Chemistry, etc.)
  • Process/Chemistry Control Equipment
  • Pre-Operational Risk Assessments
  • Cathodic Protection
  • Full Service Engineering and Electrical and Instrumentation Construction

Vibration Analysis/Testing

Vibration Analysis/Testing

  • Transportation Analysis/Testing
  • Program Support (CVAP, Dynamic Effects)
  • Wear Testing

Design Analyses

Design Analyses

  • System & Component Evaluations
    • ASME Section III, including Div-5
    • Piping Analysis (Sec-III or B31)
    • Thermal Hydraulics including CFD
  • Methods and Analysis Qualification/Testing
  • Controls and Integration
  • Loading Specifications
  • Embrittlement & Aging Effects
  • Constitutive Material Modeling (examples)
    • Irradiation Hardening, Creep, Stress Relaxation
    • Void Swelling
    • Creep-Fatigue
    • Environmentally Assisted Stress Corrosion Cracking

Engineering Programs

Engineering Programs

  • ASME OM 3/7 Piping Programs
    • Thermal and Vibration Analysis
    • Design Mitigation
    • Startup Monitoring
    • Analysis Reconciliation
    ASME Sec-III Fatigue Management
  • ASME Sec-XI, Div-2 (RIM Programs)
    • Program Management
    • Expert Panel Support
    • Degradation Mechanism Assessments
    • NDE Procedure Qualification/Execution
  • MANDE Technology Maturation
    • Robotic Delivery
    • Technical Justification, Specification, Demonstration
  • CVAP for RPV Internals (R.G.1.20)
    • Mechanism Screening
    • Forcing Functions and Fatigue Wear
    • Develop/Implement Test Programs
    • Pre-operational/Startup Testing
  • Effluent and ODCM Program Development

Operational Support Services

Operational Support Services

  • Process & Temperature Control Skids
    • Modeling and Implementation
  • Radioactive Waste Treatment
  • Occupational Dose Assessment
  • E-plan and ALARA Software Implementation
  • Radiological Engineering and Protection

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