Engineering: Phases of a Typical Engineering Project

What are Project Engineering Phases?

Applied Chemical Technology (ACT) recommends approaching engineering projects in phases for economical develop of new processes and products. This phased approach also provides an easy framework for funding plans for a project. Below is a list of the typical phases of a project with the scope of each phase. A particular engineering project may not require all of these phases or every step of each phase. Also, there may be overlap between phases. A project manager at ACT will work with you to help you identify how your project fits into this framework.

Phase 1: Preliminary Engineering

Flow Diagram

Flow Diagram
  • Kick-off Meeting
  • Project Scope
  • Flow Diagrams
  • Material Balance
  • Preliminary Equipment Sizing
  • Preliminary Electrical Single Line Diagram
  • Preliminary Piping & Instrument Diagrams (P&ID)
  • Equipment Arrangement Drawing
  • Elevation Drawing
  • Preliminary Safety Review
  • Project Schedule
  • Project Cost Estimate

Phase 2: Detail/Final Engineering

  • Project Approval
  • Finalize Scope
  • Finalize Flow Diagrams
  • Finalize Material Balance
  • Finalize P&IDs
  • Finalize Equipment Sizing & Equipment Specifications
  • Instrument/Control Specifications
  • Control/Automation Logic
  • Finalize Equipment Arrangement
  • Finalize Elevation Drawings
  • Finalize Electrical Single Line Diagram
  • Update P&IDs from HAZOP
  • Structural Drawings
  • Foundation Drawings
  • Purchase Equipment (non fab) & Instruments
  • Shop Drawings for Fabricated Equipment
  • Piping Layouts & Isometric Drawings
  • Electrical/Instrument Layout Drawings
  • Programming for Automatic Controls
  • Up-Date Project Schedule & Cost Estimate
  • Generate Operation & Maintenance Manuals

Phase 3: Bid Package and Bid Reviews

  • Construction Bid Packages for Site Work, Civil/Structural, Equipment Setting, Electrical/Instruments, and Insulation/Painting
  • Coordinate with Sub-Contractors during the Bid Phase
  • Review Sub-Contractor Bids and Recommend Best Bids to the Client for Award of Contracts

Phase 4: Construction

  • TeamProvide On-Site Consulting and Oversight throughout the Construction Phase
  • Provide Drawing Revisions as Required
  • Provide Schedule Control and Expediting Services
  • Provide On-Site Expertise for Equipment Start-Up and Commissioning
  • Provide as Built Drawings after Construction Completes

Phase 5: Start-Up

  • Provide In-House or On-Site Training for Operations and Maintenance Personnel Several Weeks Before Start-Up
  • Provide On-Site Assistance for Plant Start-Up
  • Provide Follow-Up Assistance as Required