Areas of Technical Experience

DP Engineering's professionals have extensive nuclear experience and offer a wide and varied background of technical experience in Mechanical, Electrical, I&C, Civil/Structural engineering, as well as, Engineering Programs and Fire Protection.

DESIGN ENGINEERING - DESIGN MODIFICATIONS

DP Engineering is an asset in the design modification process when onsite resources are not available or when technical experience is needed.

  • Studies to evaluate modification alternatives
  • Conceptual designs
  • Cost/benefit analysis
  • Final designs
  • Field installation, testing, and startup support

MECHANICAL SYSTEMS DESIGN

  • Development of system operating mode calculations
    (pressure, temperature, etc.)
  • Piping analysis
  • Component specifications
  • Identification of ASME Section XI boundaries
  • Waste stream reduction analysis
  • System margin evaluations
  • HVAC system design, component sizing, and off normal operational evaluations
  • Turbine/generators

ELECTRICAL SYSTEMS DESIGN 

  • Electrical transient analysis using ETAP (load flow, arc flash, short circuit relay coordination, cable ampacity, degraded voltage)
  • Breaker replacement
  • Inverter replacement
  • Appendix R
  • Equipment qualification 

INSTRUMENTATION AND CONTROL SYSTEMS DESIGN 

  • Instrument uncertainty analysis
  • Loop calibrations
  • Field instrumentation
  • Analytical instrumentation
  • Programmable Logic Controllers
  • Ladder logic
  • Distributed control systems (Honeywell and Johnson)
  • Steam boiler controls (Bailey INFI 90 and Emerson Ovation)
  • Digital instrument upgrades

CIVIL/STRUCTURAL DESIGN

  • Foundations
  • Reinforced concrete
  • Structural steel
  • Piping Supports
  • Pipe Stress Analysis
  • Conduit supports
  • Rigging
  • Seismic qualification
  • Temporary and Permanent Radiation Shielding Requests

SPECIFIC AREAS OF TECHNICAL EXPERIENCE

Large Motors
  • Pump and motor application design
  • Maintenance programs
  • Root cause failure analysis
  • Specification/procedure development
  • Electrical Testing
AOV/MOV Programs 
  • Design Basis Reviews (operating conditions, thrust/torque requirements, actuator capability)
  • Program Development (position/technical papers, procedures, management, root cause analysis) 
  • Maintenance Support (PM updates and optimization, vendor manual updates, inventory management, training)
Diesel/Generators
  • Controls
  • Governor
  • Excitation/voltage regulation
  • Unit protection
  • Fuel Systems
  • Operational, maintenance, and regulatory programs
  • Obsolescence and aging issues
Turbine/Generators
Digital Control System Upgrades
Baker Test Training
Temporary Shield Request Analysis
Inverters (UPS System Design)
  • Conceptual Design Studies
  • Cost Benefit Analysis
  • Design Change Packages
  • Inverter Applications
  • Drop In Replacements
  • Redundant Inverter Schemes (Swing inverters with hot bus panel transfer)
  • Purchase Specification Development
  • Ferroresonant and Pulse Width Modulated design change experience

SERVICES

  • Engineering and design support
  • Design Modification Development
  • AOV/MOV Services
  • Project Management
  • Installation, testing, and startup support
  • Engineering staff augmentation

 

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