upotusjäähdytykseen

Upotusjäähdytys, known in English as immersion cooling, is a method of cooling electronic components by directly submerging them in a dielectric fluid. Unlike traditional air or liquid cooling systems that rely on heat sinks or radiators, immersion cooling transfers heat away from the components by circulating the fluid around them. 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 cooling process. The fluid absorbs heat from the submerged components and is then circulated to a heat exchanger where it releases the absorbed heat. This process is continuous and requires a pump to maintain fluid flow.

Two-phase immersion cooling involves the dielectric fluid boiling directly on the surface of the hot components. As the fluid absorbs heat, it changes from a liquid to a vapor. This phase change is highly effective at transferring large amounts of heat. The vapor then rises to a condenser, where it cools and returns to a liquid state, ready to repeat the cycle. This method can achieve higher cooling densities than single-phase.

Immersion cooling offers several advantages. It can provide more uniform and efficient cooling compared to air cooling, leading to improved component performance and lifespan. It can also reduce energy consumption by eliminating the need for loud and power-hungry fans. Furthermore, it offers a quieter operating environment. However, the initial setup cost and the requirement for specialized dielectric fluids are considerations. The technology is particularly promising for high-performance computing, data centers, and cryptocurrency mining where heat dissipation is a significant challenge.