In high-energy-consumption server scenarios such as AI and high-performance computing liquid cooling solutions, the efficiency and stability of cooling systems directly impact equipment operational safety and operational costs. Liquid cooling technology has become an industry focus due to its superior heat dissipation efficiency. The cooling system utilizing EC fan-equipped dry coolers (air-liquid heat exchangers) provides significant advantages in water conservation, energy efficiency, and cost-effectiveness, greatly improving critical metrics like PUE (Power Usage Effectiveness) and WUE (Water Usage Effectiveness) for liquid-cooled data centers and computing hubs.

In high-latitude or high-altitude regions with large diurnal temperature variations, where ambient temperatures remain below 35°C for most of the year, the EC fans with intelligent speed optimization can automatically adjust airflow based on real-time environmental temperatures and coolant inlet/outlet temperatures.

EC fan based dry cooler operational modes:

Dry operation:

When ambient temperature is below 30°C, the dry cooler achieves heat exchange solely through EC fans.

Wet operation:

When ambient temperature exceeds 35°C, spray humidification or mist evaporation enhances heat dissipation capacity.

Active refrigeration assistance:

Activates compression refrigeration under extreme high-temperature conditions.

Key roles of EC axial fans in this system:

a. Built-in inverter design enables precise real-time speed control responding to load variations and ambient temperature changes.

b. Stepless speed regulation reduces energy consumption and noise while extending product lifespan.

c. IP65-rated internal rotor motor ensures reliable outdoor operation in harsh environments.

d. RS485 communication supports remote monitoring and automated control integration.