Introduction The performance of electronics cooling fans has been steadily increasing as flow requirements chase higher thermal loading. These advances have been primarily achieved through mechanical and architecture changes. However, the aerodynamic sophistication of these fans has progressed to a lesser degree, and is far removed from turbomachines used in higher power … [Read more...]
Synthetic jets for forced air cooling of electronics
Introduction As increasing functionality is packaged into ever-shrinking electronics, cooling requirements rise exponentially. While there have been continued advances in high heat flux technologies [1], commercial, consumer-oriented systems continue to focus on aircooling for reasons of reliability, acoustics, cost and portability [2]. In order to support the increasing power … [Read more...]
Piezo actuators for electronics cooling
Introduction Today, there is a specific demand by the electronics consumer market: more devices using low power processors with multiple simultaneous CPU functions. Due to the significant demand in computing needs, the International Technology Roadmap for Semiconductors (ITRS) 2005 predicts an increase in the overall power consumption for some platforms [1]. The cooling issues … [Read more...]
Using a simple air recirculation model to explore computer rack cooling
Figure 1. Schematic diagram of simple computer rack air recirculation model. Figure 2. Schematic diagram of computer rack air recirculation model with heat exchanger in rear of computer rack. In an article in the November 2006 issue of ElectronicsCooling it was noted that “advances in computer clusters have resulted in the introduction of higher density server … [Read more...]
Thermal Challenges In LED Cooling
Introduction During the last ten years, developments in LED semiconductors have led to an important change in LED applications from that of luminous indicator to that of illuminator. With LEDs now advancing into several lighting fields, LEDs have become one of the standard methods of producing light, joining more traditional sources such as incandescent, fluorescent and … [Read more...]
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