Root Only Module

Liquid-to-Chip System Modelling Laboratory

This page is dedicated to ultra-comprehensive modelling simulation: complete parameter traceability from all inputs, processing logic blocks, solver internals, control loops, calibration fitting, and final engineering outputs.

Model Coverage
Input-Process-Output
Solver Scope
Thermal + Hydraulic + Control
Calibration
Telemetry Fit Enabled
Access Level
Root

Integrated Engineering Architecture Focus

The model treats liquid cooling as one subsystem in a broader standards-driven engineering chain.

Thermal-Hydraulic Engineering Chain

The sizing model follows end-to-end heat transport: chip load capture, coolant transport, pumping duty, CDU losses, and rejection path energy. This prevents underestimating total cooling parasitics.

1

Chip Heat

GPU/CPU thermal load

2

Cold Plate

Capture ratio tuning

3

CDU Loop

Flow, head, pump duty

4

Heat Rejection

COP and climate effects

5

Compliance

Standards score fusion

Advanced Modeling Dimensions

Calculator outputs include:

  • Thermal capture, coolant flow, and pumping power.
  • CDU sizing under N, N+1, and 2N configurations.
  • Composite PUE, WUE, annual energy, and OPEX.
  • Cross-standard alignment score with weighted grading.

High-Fidelity Engineering Calculator

Use this model for detailed scenario comparison before final validation with licensed engineering teams.

Workspace Controls 42% / 58%

Design Inputs

Direct-liquid preset uses warm-water coolant loop (liquid, not supply-air).
Represents predictive optimization strength in BMS/DCIM logic (MPC-like), not a physical device.
Includes CRAH/CRAC, in-row, and DAHU/AHU fan energy on facility side (excluding server internal fans).
Auto-Run ON (220ms)
Operational Mode

Operational mode hides lab-only coefficient tuning and keeps field-operational parameters visible.

Input Quality Guardrails

Awaiting Model Run
  • Run model to evaluate assumption quality and operational realism checks.

Calibration Mode (Telemetry Fit)

Not Calibrated

Input measured telemetry to calibrate model coefficients. Minimum 2 measured KPI targets required.

Telemetry CSV Import
Idle

Auto-map CSV columns to calibration KPIs (`pue`, `cop`, `annual_energy_gwh`, `net_opex`, `carbon`, `pump_kw`) and optional operational inputs.

Column mapping not detected yet. Click "Detect Columns" to preview and override mapping.
Telemetry import idle. Provide CSV via file or paste area, then run parse.

Calibration idle. Provide telemetry targets and run calibration.

The model estimates thermodynamic and economic behavior using engineering assumptions for early-stage design screening. Note: "Liquid Supply/Return Temp" are coolant loop values, different from supply-air setpoint in DAHU/in-row systems.

Engineering Output

Quick KPI Snapshot

Constraint Check Pending
PUE-
System COP-
Net OPEX-
Risk Index-
Country Profile-
Liquid Heat Captured-
Residual Air Heat-
Coolant Flow (Design)-
Pump Power-
CDU Count-
Projected PUE-
Projected System COP-
Projected WUE-
Annual Energy-
Gross Annual OPEX-
Heat-Reuse Credit-
Net Annual OPEX-
Annual Carbon-
Carbon Avoided-
Rack Type Profile-
Design Density-
Control Logic Index-
Future Factor-
Rack Density-
Risk Index-
Data Confidence-
Calibration Fit-

Advanced Modelling Block Diagram

Input profiles flow through thermal-hydraulic engine and produce quantified impact to efficiency, cost, and compliance.

Input Profile -
Thermal Engine -
Constraint + Control -
Impact Layer -
PUE Gap to Target -
COP Gap to Target -
OPEX Delta vs Target Mode -

Control/Logic Feedback Diagram

Shows how sensor confidence, controller tuning, and predictive logic affect plant behavior and KPI outcomes in closed loop.

Expandable Block Explorer

Explorer Idle

Progressive-disclosure workspace for per-block process transparency, dependency tracing, diagnostics, QA checks, and export/share controls.

Run model to initialize explorer analytics.
Block A
Run model to compare block perspectives.
Block B
Run model to compare block perspectives.
Diagnostics pending. Click "Run UI Diagnostics" after a model run.

Execution Flow: Input -> Processing -> Control -> Output -> Re-Processing

This chain is the canonical execution order used by the model engine on every run.

1Input Vector

-

2Processing Algorithm

-

3Control Logic Gates

-

4Output Vector

-

5Feedback Processing

-

Complete Variable Processing Flow

Full chain from all input variables, derived/control processing, solver internals, and final outputs.

Stage 1 - Input Vector (0)
Stage 2 - Derived Core
Stage 3 - Control Logic
Stage 4 - Thermal/Hydraulic Solver
Stage 5 - Energy/Economic
Stage 6 - Output Vector (0)

Complete Input-Processing-Output Block Map

Every active variable is rendered as a live node. Hover each parameter for technical meaning, benchmark, and formula context.

Input Nodes (0)
Processing Nodes (0)
Output Nodes (0)

Block map updates on every model run, optimization run, and calibration run. Text wrapping is forced to avoid overflow for long variables.

Dynamic Energy + Loss Breakdown

Live share of major loads from IT input to final facility demand.

IT Core Load
-
Liquid Cooling
-
Air Path Cooling
-
Pump + Hydraulics
-
Electrical Losses
-
Other Aux + Fan
-

Target Guidance Engine

Gap: -
  • Run model to generate optimization actions.
Scenario PUE System COP Annual OPEX Annual Carbon WUE
Baseline - - - - -
Optimized - - - - -
Delta - - - - -

Constraint + Degraded Mode Engine

Constraints Pending

Define hard engineering limits and test degraded operating modes. Optimizer can enforce these constraints.

Control Logic DSL / Rule Editor

Rule Set: Default

Editable gate rules for G1/G2/G3. Variables available: monitoring, controlIndex, deltaT, pumpPowerPctIt, riskIndex, pue, targetPue, cop, targetCop.

Equation Inspector Panel

Live substituted equations with units and active values from the current simulation state.

Run model to populate equations.

Pareto Frontier Explorer (Multi-Objective)

Frontier Not Generated

Generate non-dominated trade-offs across PUE, Net OPEX, Carbon, and Risk. Click a row to apply that scenario.

Point PUE COP Net OPEX Carbon Risk
Generate Pareto frontier to view non-dominated points.
Pareto Scatter (PUE vs Net OPEX)
No Pareto Points
Generate Pareto frontier to render scatter chart.
No Pareto point selected yet. N/A
Generate frontier and click point/row to inspect detailed trade-off metrics.
Delta summary vs baseline will appear here.

Monte Carlo Uncertainty Mode

Distribution Not Generated

Uncertainty propagation around current assumptions (P10/P50/P90) for KPI robustness checks.

Metric P10 P50 P90
Run Monte Carlo to generate uncertainty bands.
Monte Carlo Distribution Charts
No Distribution Yet
Run Monte Carlo to render distribution histograms.

Facility Distribution Sankey Chart

Waiting Model State

Live flow map of facility power distribution from total input toward compute, thermal branches, electrical loss, and auxiliary load.

Run model to render Sankey distribution.
Sankey summary will appear after model execution.

Calibration Quality Layer

No Calibration Quality Data

Residual diagnostics with train/validation split and 95% confidence interval of relative residual error.

Calibration quality pending. Run calibration to evaluate fit quality.
Metric Target Predicted Residual %
No residual diagnostics yet.

Model Self-Test + Regression

Not Run

Deterministic fixture tests to validate KPI behavior, degraded mode responses, and hard-rule blocking after UI/model changes.

Self-test pending. Run self-test to generate pass/fail regression report.
Test Case Status Check Detail
No self-test execution yet.

Scenario Manager (Versioned)

Save, load, delete, and compare named scenario snapshots with assumption version metadata.

Select two scenarios sequentially to compare deltas.

Data Provenance + Assumption Ledger

Parameter source tracking with owner, confidence score, and timestamp for governance/audit context.

Parameter Source Owner Confidence Timestamp
Ledger not loaded.

Executive + Engineering Export Packs

Generate downloadable report packs for board-level communication, engineering deep-dive review, and printable PDF reports (single or compare mode).

No Export Yet
PDF export opens a print-ready report in a new tab. Use browser option "Save as PDF" for final file output.

100% Parameter Coverage Matrix

Inputs - | Outputs -
Input Parameters (0)
Output Parameters (0)

Logic Impact Matrix (Editable Algorithm Effects)

Each row estimates local sensitivity: if one parameter shifts by one step, how key outputs are affected.

Input Parameter Step Delta PUE Delta COP Delta Net OPEX Delta Carbon Delta Risk
Run model to generate impact matrix.
Composite Standards Alignment -

Grade: -

ASHRAE Thermal Envelope-
ANSI/TIA Infrastructure Readiness-
ISO Energy Governance-
NFPA Safety Posture-
Uptime Tier Alignment-

Methodology Snapshot

  • Mass flow uses Q = m * Cp * deltaT with coolant-specific properties.
  • Pump duty includes redundancy factor, hydraulic margin, and efficiency correction.
  • Cooling energy blends liquid + air path with economizer and part-load corrections.
  • PUE includes UPS and distribution losses, fan load, and auxiliary systems.
  • Net OPEX and carbon include heat reuse credit and displacement benefit.
  • Composite score uses weighted standard-specific criteria plus risk modifiers.