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We specialize in mission critical projects:

  • Data Centres
  • Collocation spaces
  • Trading House
  • Server Rooms

We are conversant with:

  • TIA
  • Uptime Standard
  • Green Mark
  • LEED
  • All the latest Industrial equipment, technologies and practices

Professional Services provided include:

  • Mechanical & Electrical Engineering Consultancy
  • Technical Due diligence
  • Condition surveys
  • Feasibility study
  • Engineering plant/ System Fault Investigation
  • Energy Audit & Sustainable Design Planning
  • Testing & Commissioning
  • Maintenance Management Advisory
  • Computational Fluid Dynamics (CDF) Modeling

We have extensive experience and successfully completed many data centre projects for various needs:

  • Data Centres on green field
    (that built from empty land plot)
  • Data Centres on brown field (that are converted from existing building of different use )
  • Fit out of data hall in the existing data center
  • Collocation space selection and fitout for colo customers
  • Enterprise Data Halls or large server room in part of the client premises


  • Site Assessment/Selection
  • Data Halls Space Planning (including current and future expansion plan)
  • Equipment Testing&Commissioning
  • Integrated System Test (IST)
  • Compliance with Uptime Institute and TIA942 Standards
  • PUE Assessment


  • High Voltage System (including HV switch gear and transformers).
  • Diesel Generators (in N+1 or 2N systems)
  • Static or Rotary UPS in 2N or Distributed Redundancy
  • Low Voltage Power Distribution
  • Data Hall Power Distribution (including PDUs/RDUs)
  • Final Circuits (Industrial sockets or busway to IT cabinets)
  • Power Distribution to Mechanical Services and Auxiliary Services
  • Earth Mesh, Clean Earthing and Power Earthing
  • Power Quality Monitoring Systems
  • Coordination with IT/Power cable containment

Air-Conditioning & Ventilation

  • High Side (chillers, pumps, heat rejection)
  • Low Side (terminal aircon units/CRAHs,
    branch pipes, ductwork, controls)
  • Aisle Containment System
  • Fresh Air and Exhaust Systems
  • Energy-efficient Systems (including Free Cooling)
  • Application of ASHRAE Standards
  • Controls System
  • CFD Analysis

Fire Protection

  • Pre-Action Sprinkler System
  • Gas Flooding System
  • Wet Mist System
  • Fire Alarm System
  • VESDA System

Testing and Commissioning

  • Individual Plant Test
  • Interface Test
  • Heat Load Test
  • Integrated System Test
  • 3rd Party Certified Test

Other Systems

  • Plumbing & Drainage System
  • Building Management System
  • Water Leak Detection System
  • Extra Low Voltage Systems, including PA/CCTV/Card Access


TW International provides Computational Fluid Dynamics Services for analysing air distribution in data centres. This includes indoor rooms and outdoor rooftop (main plant) applications.

The software used for this modelling and calculation is “6Sigma” developed by Future Facilities Ltd, which is specifically designed for Data Centre applications. This software provides a ‘full’ simulation with no simplifications, e.g. includes buoyancy;  full conservation equations (i.e. full RANS, not FFD or PF), and hence is considered more accurate than some other CFD modelling tools.

Our added value includes our engineering expertise applied to ensure accurate modelling, interpretation of the results, and offer solutions to problems.