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DCL Version 1.2

Version 1.2 adds five new capabilities: a hybrid rack model with a rear-door heat exchanger, a vendor CDU performance record library, a CDU calibration workflow, racks with cold plates, and a full-scale 1 MW data centre reference model.

New features🔗

CDU Calibration Workflow

The new UserWorkflows.Calibration package provides a repeatable three-stage process for calibrating CDU_Nominal models against vendor performance curves:

  • Data Preparation — digitise the vendor datasheet performance curve into SI-unit data points.
  • Calibration — use the Modelon Calibration Library to tune correction factors and store results in a vendor-specific record.
  • Verification — sweep the calibrated model across the full operating range and compare against vendor reference data.

A fully worked example for the Vertiv Liebert XDU1350-W2 (1320 kW) is included.

CDU Performance Record Library

The new DataCenter.Utilities.Records.CDU package provides vendor records for configuring CDU_Nominal directly from datasheet values. Five vendor-specific records are included:

  • Motivair_MCDU50_ATD4_806KW_inrow — Motivair MCDU-50, 806 kW, ATD4
  • Airedale_CDU10_W2_ATD4_1028KW_inrow — Airedale CDU-10, 1028 kW, W2 / ATD4
  • Vertiv_LiebertXDU1350_W1_ATD4_1218KW_inrow — Vertiv Liebert XDU1350, 1218 kW, W1 / ATD4
  • Vertiv_LiebertXDU1350_W2_ATD4_1320KW_inrow — Vertiv Liebert XDU1350, 1320 kW, W2 / ATD4
  • Vertiv_LiebertXDU1350_W3_ATD4_1362KW_inrow — Vertiv Liebert XDU1350, 1362 kW, W3 / ATD4

HybridRackwithRDHx — Hybrid Liquid and Air-Cooled Rack

A new rack model with two independent fluid loops operating in parallel: a TCS loop for direct liquid cooling inside the rack, and a facility water loop via a rear-door heat exchanger (RDHx) for the remaining air-side heat. The liquid_fraction parameter (default 0.8) sets the heat load split; the default design point is 83 kW per rack at 80/20 liquid/air.

Racks with Cold Plates

Four new rack models in DataCenter.Facility.Racks.WithColdPlate support direct liquid cooling via server-attached cold plates, in lumped and vectorized variants for both fully liquid-cooled and hybrid configurations.

DataCenter1MW — 1 MW Reference System Model

A full-scale data center model based on Schneider Electric reference design data, comprising 12 × HybridRackwithRDHx racks at 83 kW each (~1 MW IT load). The cooling plant includes a WSE chiller plant with automatic mode switching, a Motivair MCDU-50 CDU, a CRAH unit, and integrated PUE monitoring.

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