Views: 0 Author: Site Editor Publish Time: 2026-06-11 Origin: Site
Mini Fan Wall is a compact, modular, and high-efficiency cooling solution tailored for AI data centers with dense GPU racks (typically 20–60 kW/rack). It integrates EC fans, chilled-water heat exchangers, and intelligent controls into a slim, wall-mounted or rack-adjacent unit, delivering close-coupled, uniform airflow to eliminate hotspots and lower PUE.
Core Concept & Working Principle
Unlike legacy room-level cooling (e.g., underfloor air distribution) with 30%+ cold air loss, a Mini Fan Wall places cooling 1–3 meters from racks, cutting losses to <5%.
Airflow Path: Draws hot aisle return air → passes through chilled-water coils (32/42°F or 18/26°C) → EC fans deliver uniform cold air to rack inlets.
Control: AI-driven BMS adjusts fan speed (0–100%) and water valve opening in real time based on GPU inlet temp (setpoint: 75–85°F / 24–29°C).
Key Features for AI Workloads
High Density Cooling: Supports 20–50 kW/rack (air-cooled) or up to 100 kW/rack (hybrid air-liquid), matching NVIDIA H100/H200 GPU clusters.
Modular & Scalable: Slim depth (≤200 mm), stackable units (10–40 kW each); deploy per row or per zone, expand as AI load grows.
Energy Efficiency: IE5 EC fans (90% peak efficiency at part load); 20–30% lower fan power than CRAC/CRAH; enables free cooling when ambient temp is low.
Hotspot Elimination: Uniform airflow (±5% velocity) across rack height; close coupling prevents mixing of hot/cold air.
Easy Installation & O&M: Plug-and-play, no raised floor needed; front-access maintenance; supports Modbus TCP/RTU for remote monitoring.
Applications in AI Data Centers
Edge AI & Small-to-Mid-Size DCs: Compact footprint fits colocation/edge sites with 5–20 racks.
High-Density GPU Rows: Deploy between hot/cold aisles for 45 kW/rack air-cooled or 100 kW/rack liquid-cooled AI clusters.
Retrofits: Replace legacy CRAC units; no major layout changes, fast ROI (12–24 months).
Hybrid Cooling Zones: Pair with rear-door heat exchangers (RDHx) or cold plates for >100 kW/rack extreme density.
