The growing power density of electronic devices and the evolution of computing systems are changing the way their cooling systems are designed, profoundly reshaping traditional approaches to thermal management.
Two major transformations are accelerating this change: on the one hand, the growing electrification of mobility, industrial systems and renewable energy generation; on the other, the rapid growth of applications requiring high processing capabilities, where power density per unit of volume continues to increase.
In both scenarios, the design challenge is no longer limited to the ability to dissipate heat, but also involves transferring it effectively from where it is generated to the external environment.
The new limit: managing heat close to the component
The increase in switching frequencies and the thermal density of electronic components is creating a new physical limit: the surface available for heat exchange directly at die level is becoming increasingly small compared with the amount of heat that needs to be removed.
Under these conditions, simply increasing airflow is not always enough. The limiting factor becomes the ability of the heat-transfer fluid to effectively reach the areas characterised by the highest heat fluxes and remove heat from hot spots, namely the most critical areas of the electronic component.
This is driving the growing adoption of liquid cooling technologies, which are particularly effective for local thermal management thanks to the high capacity of the fluid to transfer thermal energy directly in proximity to the die.
Hybrid architectures: the role of liquid-to-air solutions
Among the most interesting architectures are hybrid configurations known as liquid-to-air, or L2A, in which liquid is used to extract heat directly from the component and then transfer it to the surrounding environment through a heat exchanger and an air-based system.
This configuration combines the performance of liquid cooling at the system’s most critical point with greater infrastructure simplicity compared with solutions requiring complex centralised hydraulic circuits or dedicated external heat-dissipation systems.
The intelligent integration of different technologies, applied where they can provide the greatest contribution, can therefore simplify new installations and facilitate the revamping of existing systems, while maintaining high levels of performance and reliability.
System efficiency also depends on air extraction
Even in the most advanced architectures, however, thermal management does not end with transferring heat away from the component. Thermal energy must subsequently be dissipated efficiently into the surrounding environment, making the ventilation system a key element of the entire cooling chain.
In this scenario, air extraction systems capable of delivering high airflow rates with contained energy consumption become essential.
The use of EC motors with speed control makes it possible to dynamically adapt operation to actual operating conditions, avoiding energy waste and improving overall system efficiency.
Ease of integration is also playing an increasingly important role in design. Solutions characterised by reduced weight, achieved through optimised materials and construction architectures, provide greater flexibility in applications where space and mechanical constraints are critical factors.
New solutions for a new generation of electronic systems
The next frontier in electronic thermal management therefore requires a systemic approach: from controlling hot spots within the component to the ability to effectively transfer and dissipate heat into the external environment.
It is precisely at this final stage of the thermal chain that high-performance air-based systems play a strategic role.
Fandis‘ technological evolution is part of this scenario with a new generation of roof exhaust units designed for high thermal-density applications, capable of delivering airflow rates of more than 1,000 m³/h while maintaining high levels of energy efficiency and ease of integration.
The use of EC motors with speed control makes it possible to modulate performance according to the actual thermal load, optimising energy consumption during operation. At the same time, the use of thermoplastic materials results in a particularly lightweight product, an increasingly relevant characteristic in applications where weight, space and installation flexibility represent significant design constraints.
The future challenge of electronic cooling will therefore not be addressed by a single technology, but by the ability to integrate complementary solutions throughout the entire heat-management chain.
In this process, high-efficiency air extraction systems are a key element in turning the heat transferred from electronic components into effective heat dissipation to the surrounding environment.
Features of the new generation of Fandis roof exhaust units
- Applications: high thermal-density electronic systems and advanced cooling systems
- Airflow: more than 1,000 m³/h
- Motor technology: high-efficiency EC
- Operation: electronic speed control
- Construction: lightweight, optimised thermoplastic housing
- Design benefits: reduced integration constraints, energy efficiency and application flexibility
To learn more about Fandis solutions for thermal management and ventilation of high-density electronic systems, follow our blog or contact our technical team.