Introduction Heat pipes are well-established two-phase devices used in the electronics cooling industry to transport heat from the point it is generated to the place where it is extracted from the system. Three wick structures are most commonly used to provide the capillary path for the liquid return to evaporation section; these are sintered powder, screen mesh and grooved … [Read more...]
Integrated Heat Pipe Spreader for Improved FBDIMM Memory Module Thermal Management
Introduction Due to the increasing power density in today's industry standard servers, thermal design and cooling is a significant challenge. In a typical server, the two most challenging elements to cool are the processors and the memory modules. The system level fan speeds are directly dictated (in most cases) by both processor and memory temperatures. Due to the fact that … [Read more...]
A Cryocooler In Your Laptop Computer? Maybe…
Introduction A review of the technical and market impediments overcome in the development and eventual acceptance of cryocoolers for space-borne applications may shine light on the prospects for the use of such mechanical refrigeration systems in more widespread commercial uses. This premise is explored by first reviewing space cooler development history, then considering some … [Read more...]
Liquid Cooling for Datacom Equipment Centers
Introduction The increasing heat load densities in datacom equipment centers require ever more sophisticated approaches to cooling. Air-cooled systems are now struggling to provide the needed level of thermal performance for many installations and energy efficiency is an increasing concern. In fact, the standard implementation of air-cooled designs results in cooling energy … [Read more...]
Simplified Correlations For Radiation Heat Transfer Rate In Plate-Fin Heat Sinks
Radiation heat transfer can be a significant portion of total heat transfer from a heat sink, particularly in natural convection flows. The enclosures for most natural-convection-cooled indoor and outdoor electronic equipments, such as pole or wall-mount base stations and radio units, include external fins to improve natural convection and radiation heat transfer rates. Early … [Read more...]
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