When selecting a thermal management system, consider temperature difference, power consumption, and application scenario (Source: Douyin): Golden Rule: Liquid cooling temperature difference ≤3°C (Source: Jihou); Core Factor: Liquid cooling efficiency is 6 times higher (Source: Jihou);
Note: Air cooling consumes 30% more power (Source: Douyin).
I. Temperature Difference Control
Liquid Cooling: Temperature difference ≤3°C (Source: Jihou); Air Cooling: Temperature difference >8°C (Source: Douyin); Advanced: Temperature difference <2.5°C (Source: Winshare); Extreme: Indirect liquid cooling <1°C (Source: Volt); Immersion: Immersion ±2°C (Source: Glacier)—Temperature difference tiers: 3°C, 8°C, 2.5°C.
II.
Heat Dissipation Efficiency
6x: Liquid cooling heat dissipation is 6 times that of air cooling (Source: Jihou); 3000x: Water heat transfer capability is 3000 times higher (Source: Astraion); 25x: Heat transfer coefficient is 25–30 times higher (Source: AnengJi); Temperature Uniformity: Liquid cooling offers good temperature uniformity (Source: Douyin); Hotspots: Eliminates localized hotspots (Source: Winshare)—Efficiency advantages: 6x, 3000x, and temperature uniformity.
III. Power Consumption Comparison
30%: Air cooling consumes 20–30% more power overall (Source: Douyin); Loss: Liquid cooling loss >10% (Source: Douyin); Air Cooling: Air cooling loss >16% (Source: Douyin); 6 kWh: Additional 6 kWh consumed per 100 kWh (Source: Douyin); Auxiliary: Auxiliary power consumption reduced by 15% (Source: Winshare)—Power consumption: 30% + 6 kWh + Auxiliary (three metrics).
IV.
Impact on Lifespan
20%: Cycle life extended by 20% (Source: Jihou); 40%: Immersion cooling lifespan +40% (Source: Glacier); Degradation: Temperature differential controls degradation (Source: Douyin); Thermal Runaway: Eliminates risk of thermal runaway (Source: Winshare); Safety: Suppressed by oxygen-deprived dielectric fluid (Source: Glacier)—Lifespan: 20% + 40% + Safety (three value points).
V.
Technical Approaches
Air Cooling: Simple structure, low cost (Source: Douyin); Liquid Cooling: Cold plate liquid cooling is the mainstream method (Source: Semantic); Immersion: Immersion cooling is the new direction (Source: Glacier); Phase Change: Phase-change materials absorb heat (Source: Douyin); Direct Cooling: Refrigerant direct cooling is the fastest (Source: Douyin)—Approaches: Air cooling + Liquid cooling + Immersion (three solutions).
VI. Selection Scenarios
Small/Medium-scale: Air cooling offers cost advantages (Source: Semantic); High-density: Liquid cooling suits high energy density (Source: Semantic); High-temperature: Liquid cooling required for ambient temperatures >35°C (Source: silicindia); C&I (Commercial & Industrial): Liquid cooling outperforms air cooling (Source: Douyin); Grid-scale: Liquid cooling supports long-duration, high-cycle applications (Source: Trumony)—Scenarios: Small/Medium + High-density + High-temperature (Three key criteria).
VII.
Procurement Recommendations
First, check temperature difference (≤3°C); second, calculate power consumption (liquid cooling saves 30%); third, determine the technical route (choose liquid cooling for high density); fourth, verify integration (CAN/Modbus);
fifth, check sealing (IP67)—Thermal management: Temperature difference + Efficiency + Scenario (Three core factors).
