upotusjäähdytys

Upotusjäähdytys, also known as immersion cooling, is a method of cooling electronic components or entire servers by submerging them directly in a non-conductive dielectric fluid. This fluid absorbs heat from the components and transfers it away, preventing overheating. There are two primary types of immersion cooling: single-phase and two-phase.

In single-phase immersion cooling, the dielectric fluid remains in a liquid state throughout the process. The fluid circulates around the components, absorbs heat, and is then pumped to a heat exchanger where it is cooled before returning to the submerged components. This method is simpler in design and operation.

Two-phase immersion cooling utilizes a fluid that boils at a relatively low temperature. As the electronic components heat up, the fluid in contact with them vaporizes, absorbing a significant amount of heat in the process. This vapor rises to the top of the enclosure and condenses back into a liquid on a cooling coil, then drips back down to repeat the cycle. This phase change process is highly efficient at heat removal.

Immersion cooling offers several advantages over traditional air cooling. It can achieve much higher cooling densities, allowing for more powerful hardware to be packed into smaller spaces. It is also more energy-efficient, as cooling fluids are generally better at heat transfer than air, and the pumps required are less energy-intensive than large air-moving fans. Furthermore, it can lead to quieter operation and increased component lifespan due to consistent and effective temperature management. This technology is increasingly being adopted in data centers, high-performance computing, and cryptocurrency mining operations.