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Data Centres

Data centre energy audits focused on cooling efficiency and Power Usage Effectiveness (PUE).

Where energy usually goes

Data centre: isometric illustrationAn isometric drawing of a typical Data centre building on its lot, with trees.

Illustration

  • Cooling and airflow management
  • UPS and power-distribution losses
  • PUE tracking

Systems 2R audits here

Electrical distributionFrom the utility transformer to the main switchboard, sub-boards and loads, with 2R's power logger at the incomer.
  1. Transformer (utility intake) · where the building takes power from the grid
  2. Main switchboard (MSB) · distributes power to the whole building
  3. Power logger · logs kW, kWh and power factor over days: Meatrol Mi550 / Fluke 430 Series II
  4. Load profile · the logged data shows when and where energy is used
  5. Sub-boards · feed each area or system, measured one by one
  6. Loads · chillers, motors, lighting: where the energy ends up

Illustration of typical systems, not a client's plant.

Chilled-water plantHow a chiller plant cools a building: cooling tower, chiller, pumps and air handler, and where 2R measures power and flow.
  1. Cooling tower · rejects the chiller's heat outdoors
  2. Chiller · makes the chilled water for air-conditioning, often the biggest single electrical load
  3. Condenser water pump · circulates water between the chiller and the cooling tower
  4. Chilled water pump · sends chilled water to the air handlers; a VSD lets it follow the load
  5. Air handling unit (AHU) · blows air across the chilled-water coil and into the building
  6. Ultrasonic flow meter · clamped on the chilled-water pipe to measure flow and cooling load (RT)
  7. Power logger · logs kW, kWh and power factor over days: Meatrol Mi550 / Fluke 430 Series II

Illustration of typical systems, not a client's plant.

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Tell us about your building or plant and we'll recommend the right next step: an audit, an energy-saving project or EECA compliance support.

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