Liquid-Cooling Systems

Imagine trying to cool a stove element by blowing air across the room at it, compared with simply running water through a pipe in direct contact with the element itself, direct contact with a liquid removes far more heat, far faster, from a far smaller space than moving air ever could. Liquid cooling applies exactly this principle to computing hardware, covering direct-to-chip cooling, where a cold plate carries coolant directly across a chip's surface, and immersion cooling, where entire circuit boards are submerged in a dielectric fluid, both bypassing the room-air route that chillers and CRAHs, both covered elsewhere on this site, otherwise rely on.

The shift has been forced by the hardware itself, well-designed air cooling tops out around 30 to 40 kW of heat removal per rack, direct-to-chip liquid cooling extends that to roughly 60 to 120 kW, and Nvidia's GB200 and GB300 NVL72 racks draw upward of 130 to 140 kW each, meaning the newest AI accelerator racks genuinely exceed what air cooling, even at its best, can handle at all, a mismatch explained more fully under CRAHs elsewhere on this site.

That mismatch shows up directly in adoption numbers, liquid cooling penetration inside AI data centres has been projected to jump from around 14% in 2024 to roughly a third of deployments in 2025 and higher since, and the global liquid cooling market is projected to grow from about $2.8 billion in 2025 to over $21 billion by 2032, a pace of growth few other data centre hardware categories are matching.

India has moved to localise this technology rather than simply import it, Schneider Electric opened a dedicated liquid-cooling factory in Bengaluru in 2026 specifically to produce high-density cooling systems for domestic AI infrastructure, and Blue Star and Voltas are each developing in-house liquid-cooling and cooling-distribution-unit products, with India's data centre cooling market's liquid segment growing at roughly 27% a year, far outpacing air-based cooling's low-double-digit growth even though chillers, CRAHs and cooling towers, all covered elsewhere on this site, still held roughly two-thirds of the market's overall revenue as of 2025, a reader is most likely to encounter this simply as a data centre operator's spec sheet or press release explicitly stating "liquid-cooled" or "direct-to-chip ready," a claim that a facility built even a few years earlier would rarely have needed to make at all.