Thermal Management in India: Cooling the Next Wave of Electronics and EVs

The problems being solved

Integrated circuits and microprocessors in laptops, servers, and mobile devices now routinely push heat fluxes beyond 110 W, overwhelming conventional air cooling. The result is thermal throttling, component degradation, and user discomfort. In high-end computing clusters, even microcontrollers hit thermal limits under sustained loads, forcing performance caps.

Electric and hybrid vehicles compound the challenge: power electronics and battery packs must stay within tight temperature windows to ensure safety, longevity, and efficiency, all while operating in India’s hot and dusty conditions. Mechanical components in these vehicles also face extreme thermal loads that shorten life if not managed.

Conventional cooling methods are hitting their limits. Microchannel heat sinks, though compact, often create hotspots due to non-uniform flow and high pressure drops. Boiling-based systems suffer from low critical heat flux, capping how much heat they can safely remove. Meanwhile, standard coolants like water simply lack the thermal conductivity to pull heat away fast enough from miniaturized, high-power-density devices.

Control adds another layer of complexity. Fan speeds that don’t adapt to real-time loads waste energy or leave components undercooled. Liquid-cooling loops can trap residual air bubbles that slash efficiency. And measuring true chip temperature with a single sensor remains error-prone, making precision cooling elusive.

Manufacturing these advanced cooling components is no easier. Heat sinks with intricate internal channels, vapor chambers, and composite thermal interface materials demand fabrication processes that are often costly and hard to scale for India’s price-sensitive electronics market.

How the field is solving it

Indian inventors are turning to two-phase cooling—where a fluid boils and condenses—to handle extreme heat fluxes. By designing microchannel evaporators with variable fin patterns and re-entrant cavities, they are evening out temperature distribution and pushing critical heat flux higher. These designs are being tailored for everything from server CPUs to EV power modules.

Nanofluids and hybrid nanofluids are emerging as a powerful upgrade to water and glycol. By dispersing engineered nanoparticles, researchers are boosting thermal conductivity while carefully managing viscosity so that pumps don’t pay a penalty. Some teams are even exploring bio-based surfactants to enhance pool boiling without the environmental cost of synthetic additives.

Phase-change materials (PCMs) are moving beyond lab curiosities. They absorb heat by melting, then release it when they solidify, acting as a thermal buffer. Indian work is integrating PCMs into heat sinks for laptops and into battery packs for electric two-wheelers, smoothing out temperature spikes during fast charging or peak loads.

On the control side, AI-driven thermal management is gaining ground. Instead of fixed fan curves, algorithms learn from real-time sensor data to predict heat buildup and adjust cooling preemptively. This software-defined approach is particularly attractive for data centers, where even small efficiency gains translate into large energy savings. Self-regulating systems that combine multiple cooling techniques—say, liquid cooling plus targeted air jets—are being prototyped to handle mixed workloads.

Advanced materials are also reshaping the field. Next-generation thermal interface materials (TIMs) with higher conductivity and conformability are being developed to bridge the gap between chips and heat sinks. Aerogels and dielectric coolants are enabling immersion cooling that can safely bathe live electronics, a technique now trickling down from hyperscale data centers to edge computing installations in India.

Where the market is heading

The global thermal management market is hovering around USD 80 billion in 2025, growing at a high single-digit annual rate, according to Fortune Business Insights. Other research firms like Mordor Intelligence and BCC Research place the figure in a similar range, driven by the electrification of vehicles and the relentless rise in chip power densities.

Advanced materials are a major thrust. Lux Research notes growing adoption of phase-change materials, next-generation TIMs, aerogels, and dielectric coolants. Two-phase cooling systems are gaining traction in hyperscale data centers for their ability to deliver sub-ambient performance, as highlighted by Mordor Intelligence. Software-defined thermal management, with real-time sensors and predictive control, is also emerging as a key trend.

India’s own momentum is building. The country’s climate tech ecosystem is swelling, with a strong cohort focused on energy generation, consumption, and industrial decarbonisation, as mapped by the India Climate Tech Startup Landscape. While thermal management is not yet a standalone category, it is deeply embedded in these sectors—from cooling EV batteries to making data centers more sustainable. TERI’s recent policy brief advocating accelerated adoption of solar thermal technologies for industrial process heat further signals a receptive environment for novel cooling solutions that can decarbonise heat-intensive industries.

The white space

A clear opportunity exists for integrated thermal solutions that combine advanced materials, intelligent fluids, and adaptive control into a single, easy-to-deploy package. Today, many innovations remain siloed—a better heat sink here, a smarter fan algorithm there—but the real gains will come when they work in concert, especially for India’s cost-conscious manufacturers.

The intersection of AI and thermal control is still nascent on Indian factory floors and in local data centers. Building predictive models that account for ambient dust, humidity, and erratic power quality could unlock significant energy savings and equipment longevity. Similarly, affordable phase-change materials tailored for consumer laptops and mobile devices remain a wide-open field, where even modest improvements in thermal buffering can dramatically improve user experience.

India’s push for electric two- and three-wheelers creates a unique demand for rugged, low-cost cooling that can handle tropical heat and rough roads. Battery thermal management systems that use passive cooling, compact heat pipes, or bio-based phase-change slurries could leapfrog more complex liquid loops. On the industrial side, integrating solar thermal with process heat—as TERI urges—is a largely untapped frontier where thermal storage and heat exchange innovations can play a pivotal role.

Finally, standardised testing protocols for nanofluids and next-generation TIMs are missing, making it hard for Indian manufacturers to compare and adopt these materials. A collaborative effort to establish performance benchmarks could accelerate deployment across electronics, automotive, and renewable energy sectors.

Explore the innovators

The specific inventors, patents, and companies working on these challenges in India can be explored on Deeptech Navigator. From novel heat sink geometries and bio-based coolants to self-optimizing thermal control systems, the landscape is rich with homegrown ingenuity waiting to be discovered.

In our data

Sources

• What Is Thermal Management? A Clear Overview of Its ... ↗
• What is thermal management? ↗
• Thermal management introduction ↗
• Thermal Management Technologies Market Forecasts 2031 ↗
• Thermal Management System Market Size, Share [2034] ↗
• Climatiq named in the 2024 Gartner® Cool Vendors ... ↗
• Thermal Management Market Size, Share and Growth ... ↗
• Global Market for Thermal Management Technologies ... ↗