What is Liquid Cooling Technology?

Liquid cooling technology involves using coolant fluids to lower the temperature of equipment. Unlike traditional air-cooling methods, which use fans to expel heat from inside the equipment, liquid cooling provides a more efficient heat dissipation solution, especially as servers' computational power increases. Liquid cooling is typically divided into two main categories: Direct Liquid Cooling (DLC) and Immersion Cooling.

Direct Liquid Cooling (DLC)

This method surrounds heat-generating components with sealed coolant pipes. Copper plates conduct the heat to the coolant, which then flows out of the server and through a heat exchanger, where it dissipates the heat before returning to the system.

Immersion Cooling

Servers are submerged directly in dielectric fluids, allowing the liquid to absorb and dissipate heat through either single-phase or two-phase physical phase changes.

Advantages of Immersion Cooling Technology

Immersion cooling offers several advantages, with the most notable being improved cooling efficiency. Immersion systems effectively absorb and dissipate heat, overcoming the thermal resistance and conduction issues found in air-cooled systems, significantly enhancing thermal performance. Additionally, immersion cooling is energy-efficient and environmentally friendly. Compared to traditional systems, it reduces the need for fans and air-conditioning, saving energy and lowering carbon emissions.

Moreover, immersion cooling reduces noise and dust. The elimination of fans results in quieter operation, and it minimizes the impact of airborne dust on hardware, enhancing both the reliability and lifespan of the equipment.

The Role of Coolants in Immersion Cooling Systems

Coolants play a critical role in liquid cooling systems, serving as specialized dielectric fluids for heat dissipation and protection of electronic equipment. High thermal conductivity and chemical stability make these fluids essential for maintaining the operational stability of servers during intensive tasks

Common types of coolants include fluorinated fluids, synthetic oils, and silicone oils. Fluorinated fluids offer excellent thermal conductivity and stability, making them ideal for high-performance computers, though they come at a higher cost. Synthetic oils, including mineral oils, offer good heat capacity and conductivity but pose environmental concerns and odor issues, leading to their gradual phase-out. Silicone oils, on the other hand, are frequently used in specialized cooling systems due to their thermal and chemical properties.

Choosing the right coolant is crucial for optimizing system performance and ensuring the long-term reliability of electronic equipment.

The Partnership Between Hai Lu Jya He and MORESCO

Hai Lu Jya He has partnered with Japan’s MORESCO to develop mineral oil-based coolants specifically designed to meet the cooling challenges posed by generative AI server workloads. These coolants not only deliver exceptional thermal performance but also maintain stability in high-computation environments, extending equipment lifespan.

This collaboration between Hai Lu Jya He and MORESCO marks a significant breakthrough in AI server cooling technology, driving the future of thermal management solutions. Through continuous innovation and research, they aim to provide more efficient, stable cooling solutions to meet the growing computational demands and ensure server stability under heavy workloads.

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