The Definitive Guide toAI Data Centers
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Release the rack interface schedule only when every service fits — stated inputs

Rack A: 120 kW input = 100 kW liquid + 20 kW room air; coolant 40°C inlet, maximum 55°C return, 2.0 kg/s, cp 4.18 kJ/(kg·K). Hall: 132 kW input capacity, 120 kW liquid duty, 18 kW room air; rear service clearance 0.80 m vs 0.90 m required. Rack/network/manifold/bus ready weeks 9/11/10/12; test 2 weeks; need-by week 14.modeled

Value kindmodeled — Interpret this value according to its displayed kind, scope, source, and as-of date.
ScopeHypothetical rack and hall, separate air/liquid duties. Unsupported limits and dates are explained in the opening callout; Chapters 5.1, 5.7, 6.7 and 2.1 own the methods.
As of2026-09
SourceOpen Compute Project Open Rack specifications — method reference; guide-authored hypothetical scenario September 8, 2026. No supplier quote or test measurement.
DerivationExact teaching assumptions chosen to expose the stated constraint and its reversal; not estimates of market prices or actual equipment.
Reviewchecking…review by 2027-03-08 · standard cadence
Recorded changeslast 2026-09-16
Claim idguide2-t29-7-13-inputs

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