Detailed Engineering Design

The detailed design phase results in all documentation required to procure equipment and materials, to (sub)-contract the construction work and to operate and maintain the facilities. The detailed design package may include final PFD’s and P&ID’s.

PT. Depriwangga Engineering employs domain knowledge experts, cutting edge software tools and specially developed applications for delivering intricate engineering services. Based on the basic design, we provide these detailed engineering services by delivering intelligent engineering designs and the associated documentation.

PT. Depriwangga Engineering provides the following Detailed Engineering Services:

1.Process Engineering

PT. Depriwangga Engineering’s process engineering group undertakes the complete detailed engineering of process plants based on FEED package. The various services covered include:• Process simulation• Heat and material balance calculations• Materials of construction diagrams• Hydraulic analysis, line sizing and relief valve sizing• Design of process equipment• Development of Process Flow Diagrams (PFDs) and equipment data sheets :

A. Development of Process and Instrumentation Diagrams (P&IDs)
B. Safety and Hazards and Operability (HAZOP)Specialized Tools
Used: Aspen Plus,HTRI, PHA Works, Pipesim, Flarenet, and a number of internally developed equipment design programs.

2. Instrumentation & Controls Engineering

PT. Depriwangga Engineering’s Instrumentation & Control systems engineering group executes detailed engineering activities for all types of instrumentation at Oil & Gas Industries, but not limited in Mining Industries.The major elements of this service include instrument markups on P&IDs, preparation of specification datasheets, development of Field Instrument/JB/Panel location plans, wiring and loop diagrams, hook-up drawings, PLC/DCS I/O assignment, DCS configuration etc. and the creation/import of instrument indexes, flow sensors, control valves and thermo well sizing calculations. The various services covered include:• Complete Control System design and architecture• Distributed Control System (DCS), Programmable Logic Controller (PLC) and Supervisory Control and Data Acquisition (SCADA) design and specification• Control valve sizing and selection• Instrument design and specification• Procurement services for all types of I & C equipmentSpecialized Tools Used:AutoCAD, and Instrucals.

3. Electrical Engineering

PT. Depriwangga Engineering’s electrical engineering carries out power systems studies using ETAP software. The team also undertakes 3D modeling of trays, lighting fixtures and other electrical equipment. The various services covered include:• Electrical load analysis and design of system architecture• Power distribution system design• Motor control center and sub-station design• Protective relay coordination• Lighting design

Grounding design
• 3D design of electrical components
• Cable and tray routing, sizing, scheduling
• Hazardous area classification
• Supervisory Control and Data Acquisition (SCADA) design and    specification
• Plant communication system design
• Procurement services off all types of electrical equipment
Specialized Tools Used :
AutoCAD, ETAP, & other platforms for 3D modeling.

4. Mechanical Engineering

PT. Depriwangga Engineering’s mechanical engineering group designs various static and dynamic equipment using internationally accepted design codes and software. The various services covered include:

  • Design of static and rotating equipment such as pumps, vessels, tanks and heat exchangers, reactors, columns and agitators
  • Heat exchanger setting plans
  • Finite element analysis
  • Design of material handling equipment such as conveyors, crushers, elevators, and cranes
  • Preparation of technical specifications for procurement of equipment
  • Generation of fabrication drawings
  • Technical bid evaluationSpecialized Tools Used:AutoCAD, PVElite, PDMS, Coade Tank and a number of internally developed equipment design programs.

5. Plant Design & Piping Engineering

PT. Depriwangga Engineering’s piping engineering group carries out an entire range of activities, stress analysis, conceptual planning and studies, 3D modeling, Isometrics, pipe supports, interference checks, as well as the creation of design reviews and reports. The various services covered include:

  • Complete plant layout services, including equipment arrangement, plot plan development and conceptual layout
  • 2D and 3D equipment and piping modeling
  • Static and dynamic piping stress analysis
  • Laser scanning and “as-building” services
  • Complete piping material management services, including pipe specification and reference database (RDB) development and maintenance
  • Procurement of piping materials and specialty items
  • Site construction support servicesSpecialized Tools Used:AutoCAD, CAESAR II, PMDS, and a number of internally developed equipment design programs.

6. Civil Structural Engineering

PT. Depriwangga Engineering’s civil/structural engineering group undertakes the complete detailed engineering of all structures and foundations pertaining to any plant, non-plant, utility, offsite and offshore structure. The group comprises of a team of engineers and designers well equipped with international design codes and experienced in executing all types of structural analysis design and drafting assignments. The various services covered include:

  • Structural analysis and design
  • Foundation and reinforced concrete analysis and design
  • Cut and fill design
  • Site drainage and road design
  • Structural steel connection design and detailing servicesSpecialized Tools Used:STAAD.Pro, PMDS, SACS, and a number of internally developed structural and foundation design programs.