Immersion Cooling System Dry Cooler for GPU Water Cooling

Immersion Cooling System Dry Cooler for GPU Water Cooling

In an immersion cooling system for GPU water cooling, a dry cooler is an important component for heat dissipation.

The following is an introduction to its working principle, advantages, and limitations:

Working Principle

The dry cooler is a kind of energy-saving heat exchanger. In the immersion cooling system for GPU, the hot process fluid (coolant) enters the inlet header connection of the dry cooler. The heat from the fluid is dissipated to the fins through the surface of the coil. The fan located at the top of the equipment sucks in ambient air and makes it flow through the coil surface. In this way, the heat from the process fluid is transferred to the air and then discharged into the atmosphere. After cooling, the process fluid leaves the equipment through the connection and returns to the immersion cooling system to continue cooling the GPU.

Advantages

High Energy Efficiency: The dry cooler does not require mechanical refrigeration, and its energy consumption mainly comes from the water pump for fluid circulation, so it has lower energy consumption compared with some traditional cooling devices such as cooling towers.

Water-saving: It adopts a closed-loop system, in which the fluid circulates without loss, almost without water consumption, which is very suitable for water-scarce areas.

Compact and Easy to Install: The dry cooler has a compact structure, occupies a small space, and is easy to install and maintain, which can be flexibly integrated into the immersion cooling system.

Adaptability to Harsh Environments: It can withstand extreme temperatures ranging from -40°C to 50°C, and can also operate stably under extreme altitudes or harsh weather conditions, ensuring the stable operation of GPU cooling.

Limitations

Low Heat Exchange Efficiency: The dry cooler relies on the heat exchange between the coil and ambient air. Compared with some liquid - liquid heat exchangers or devices with phase - change heat transfer, its heat exchange efficiency is relatively low, especially in high - temperature environments, the heat dissipation effect may be affected.

High Dependence on Ambient Air Quality: The heat exchange effect of the dry cooler is closely related to the quality of ambient air. In an environment with poor air quality, dust, debris, etc. may block the fins, reducing the heat exchange efficiency and requiring more frequent cleaning and maintenance.