AI ve high-performance computing (HPC) GPU cluster'lari 50-100 kW/rack guc yogunluga ulastigindan immersion cooling (dielektrik sivi icinde daldirma) zorunlu hale geldi. 3M Novec 7100 1 C kaynama, hidrokarbon mineral yag 280 C flash. NFPA 75 data center yangin koruma kurallarini verir.
Immersion Tipi
- Single-phase: Mineral yag 280 C flash
- Two-phase: Novec 649 kaynama 49 C
- Synthetic hidrokarbon: ExxonMobil SpectraSyn
- Fluorinated: 3M Novec (2025 sonrasi azalan)
- GWP: Mineral 0, Novec 1-300
NFPA 75 Koruma
- Combustibility: Class IIIB (>93 C flash)
- Sprinkler: K=80 0.15 gpm/sqft
- VESDA: Aspirating smoke
- Clean agent: NFPA 2001 gerekli degil
- Drain: Tank %110 secondary
GPU Cluster Guc
- NVIDIA H100: 700 W/GPU
- Rack: 8x72 GPU = 50-100 kW
- Immersion tank: 2000 L dielektrik
- Pump: 20-30 m3/sa sirkulasyon
- CDU: Coolant Distribution Unit
Risk Yonetim
- Electrical fault: Sivi icinde kapanan ark
- Leak: Bund + sensor
- Odor: Mineral yag kokusu
- Biyolojik: Su icermeyen dezenfekte
- Retrofit: Air-cooled -> immersion 6 ay
AI Data Center Trendler
- xAI Colossus Memphis: 100K GPU
- Microsoft Stargate: 500 MW planla
- Turkiye: Turkcell Pendik, Turk Telekom
- PUE: Air 1.4 -> immersion 1.05
- Liquid metal: 2030+ gelecek
Data Center SprinkCalc ile
SprinkCalc data hall immersion cooling NFPA 75 sprinkler K=80 0.15 gpm/sqft, Class IIIB dielektrik, VESDA aspirating ve drain bund hesabi yapar.
SprinkCalc'i App Store'dan indir
Kaynaklar & İleri Okuma
NFPA 75, NFPA 76, ASHRAE TC 9.9, Open Compute Project, EN 50600. NFPA 75 Fire Protection of IT Equipment.