Control and Safety Services

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Control and Safety Services

Chemerah provides engineering services for industries.  We support services ranging from process debottlenecking and upgrading for existing plants to new process plant design.  We have substantial experience in addressing complex process projects successfully from conception through startup and commissioning.

We have particular expertise in batch and continuous process simulation and modeling, employing experienced staff using the most sophisticated commercial modeling packages, including Aspen Plus and Hysys. For any particular project, we select the modeling tools that best support the specific simulation – often those that are in common use by our clients.  We believe successful modeling requires a collaborative team approach.  There are significant challenges in modeling, including ensuring parameters and material properties are correct and that modeling results are reasonable.  We work with our clients to validate process modeling results against existing process operations, testing data and/or literature.

 

Areas of expertise include:

  • Process Stability and Control Evaluation
  • Thermowell Wake Frequency Analysis
  • Safety Integrity Level Analysis
  • Control Valve and Flow Element Calculations
  • Hazardous Area Classification Evaluation
  • Instrumentation

Controls engineering and design services and deliverables include:

  • Piping and Instrumentation Diagrams
  • Safety Instrumented Systems (SIS)
  • Interlock and Automated Sequencing Logic
  • Foreign Device Controls Integration
  • Controls Narratives / Functional Specifications
  • Control Loop and Logic Diagrams
  • Safety Interlocks Definition
  • Conduit / Cable Schedules
  • Instrument Location Plans
  • HMI Configuration
  • Emergency Shutdown Systems
  • Control System Transition / Cutover Planning
  • Fiber Optic Networks and Communications
  • Modular Control Rooms
  • Cause and Effect Matrix
  • Batch Sequence Diagrams
  • FAT / SAT Definition and Support
  • Instrument Installation Details
  • PLC Programming