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Nexus offers full-service project design that drives efficiency, boosts productivity, improves quality and enhances plant safety for specialty and commodity chemical companies. We have a deep understanding of continuous processing, solids handling, combustion and distillation, with a proven track record in product and feedstock logistical planning and optimization.

Chemicals News, Success Stories & Insights

An Experienced Team of Chemical Experts

Eric Hirsch

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Senior Process Engineer

Eric Hirsch is an accomplished process engineer with more than 20 years of experience in the chemical and refining industry, including nearly 10 years of on-site experience. His work at Nexus has included concept development and economic screening for new projects, detailed equipment/valve/piping sizing, relief valve revalidation/mitigation and flare header modeling, controls design, and PHA/HAZOP/LOPA support. Past work includes solvent recovery, conveying, and dust collection system design. Eric earned a B.S. in Chemical Engineering and M.Eng. in Manufacturing from Cornell University. He has experience in ASPEN, HYSYS and ChemCad process modeling software, Visual Flow relief design modeling software, and PHAST Dispersion modeling software.

Gregg Pinkelman

Gregg Pinkelman

Project Director

Gregg Pinkelman brings more than 35 years of project management experience, specializing in overall project design, planning, specifications, cost estimates, personnel coordination, budget control and project administration. In his role at Nexus, Gregg leads business and proposal development, project schedules, execution of work and management of multi-discipline bodog bonus code projects for the firm’s Maumee office. He earned a Bachelor’s degree in Engineering from University of Toledo, and Gregg is a 30-year member of the American Society of Mechanical Engineers (ASME).

Nathan Stahley

Nathan Stahley

Mechanical & Piping Discipline Manager

Nathan Stahley has more than a decade of experience working in the design, engineering and construction industries. His work has ranged from designing new gas and fluid separation applications and manufacturing processes, to managing multi-plant engineering departments. Nathan earned his Bachelor of Science from The Ohio State University and his Master of Engineering Management from Duke University. His certifications include Engineer in Training (EIT), ASME BPV Code: VIII-I – Design and Fabrication of Pressure Vessels, ASME B31.3 Process Piping Code, and Caesar II Pipe Stress Analysis.

Chemicals Services & Capabilities

Chemical plant industrial piping system

Process & Piping Engineering

From engineering design to finished product, Nexus process and piping engineers provide multifaceted support and comprehensive analysis of equipment utilization and performance, with attention to issues like pump cavitation, thermal expansion, flow control, and more, as well as workflow methodology. Nexus offers full turnkey solutions and uncovers opportunities to enhance production processes.

What We Deliver

Process Design

  • Data Gathering & Baseline System Modeling
  • Process Flow Diagram Development
  • Heat and Material Balances
  • bodog sports betting app Hydraulic System Design
  • Liquid & Solid Chemical Processes
  • Design Basis Development
  • Statement of Requirements
  • PID Development and Control
  • Operating Cost Analysis
  • Equipment Specifications
  • PSM Documentation
  • Operating Procedures
  • Tank Farms & Distribution
  • Commissioning & Start-up Support
  • Technical Service Support
  • Relief & Flare System Design

Piping Design

  • Laser Scanning
  • 3D Design
  • Installation Animation
  • Navisworks Integration
  • Modular & Pre-Assembly Design
  • Isometric & Spool Drawings
  • Construction Support
Pressure gauge for chemical manufacturing

Electrical, Instrumentation & Controls (I&C)

A growing surge of available machine and digital data challenges organizations’ ability to effectively optimize internal system performance. Nexus helps control the deluge by applying real-world systems design experience, interpreting, and acting on relevant data, building better operational performance and increased productivity.

What We Deliver

Electrical Engineering

  • Load Modeling
  • One Line Development
  • Arc Flash Analysis
  • Substation Design
  • Class I / Division I Design
  • Power Distribution
  • Protective Relay Coordination
  • Energy Audits
  • Energy Management Systems
  • Equipment Layout
  • Equipment Specification
  • Facility Design
  • Fire & Security Systems
  • Lighting & Lighting Controls
  • Lightning Protection
  • Start-up Planning and Support

Instrumentation & Controls

  • System Design & Device Specifications
  • Distributed Control Systems (DCS)
  • Safety Instrumented Systems (SIS)
  • Human Machine Interface
  • Hybrid Control Systems
  • Programmable Logic Controls (PLC)
  • Supervisory Control & Data Acquisition Systems (SCADA)
  • bodog sports betting app Field Checkout & Commissioning
mist rising from a chemical plant

Mechanical, Civil & Structural Engineering

Successful sites are built on the solid foundations planned and delivered by the experienced engineers at Nexus. From designing new systems to troubleshooting structural challenges, Nexus engineers are there to help. Our experienced staff takes a holistic approach to core fundamentals like failure analysis, component design, retrofits and more.

What We Deliver

Mechanical Engineering

  • Mechanical Integrity Assessment Support
  • Vessel Shop Drawings
  • Nozzle Design Drawings
  • Skid Packages
  • Codes & Standards
  • Equipment Setting Plans
  • Turbo Machinery
  • Rotating Equipment
  • Stationary Equipment
  • Chillers & Refrigeration
  • Boilers
  • Dust Collection
  • Energy Recovery Equipment
  • Bulk Material Handling
  • Hydraulic Controls

Civil Engineering

  • Grading/Earthwork
  • Sewer & Run-off Hydraulic Modeling
  • Sewer System Assessment & Design
  • Rail & Railroad Design
  • Site Planning
  • Underground Utilities

 

Structural Engineering

  • Shoring Plans
  • Structural Repairs
  • Pre-assembly Design
  • Geotech Reviews
construction crane building a chemical plant

Project & Construction Management

Nexus professionals consult on new construction, from initial design concept and feasibility analysis through the final build.  Emphasizing a multi-disciplinary communication and coordination approach, we work closely with everyone from the General Contractor, to OEMs, plant engineering and management to identify the appropriate strategy to successfully complete complex builds.

What We Deliver

Project Controls

  • Initial Project support
  • Integrated Document Management Systems
  • Formal Project Reporting
  • Risk Assessment / Register
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  • Review of Lessons Learned

Estimating

  • Initial Estimate: Class V/IV
  • Class II & III Estimates
  • Basis of Estimate/Metric Review
  • ASPEN Cost Estimator & Historical Metrics

Scheduling

  • Level 2 Schedule
  • Level 3 Schedule – Resource Loaded
  • Earned Value Process in Place
  • Primavera – P6 & Microsoft Project
  • Advanced Work Packaging

Project & Construction Management /CM/CA

  • Procurement Services & Support
  • Evaluate Lifecycle Costs
  • Constructability Analysis
  • Lift Planning
  • Logistics & Heavy Haul
  • Field & Shop QA
  • Commissioning Support

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