Introduction Existing technologies typically utilize air to carry the heat away from a heat sink that is thermally coupled to the microprocessor. Higher performance devices such as workstations, "gaming" PCs, or tower servers that utilize components with greater power dissipation can require more aggressive cooling technology. A high-performance alternative to heat sinks is a … [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...]
Reader Poll Declares ElectronicsCooling a Winner!
Reader Poll Declares ElectronicsCooling a Winner! Here in the United States we are in the midst of the campaign season leading to our national election in November to choose our next president. While Senator John McCain is the clear winner of the Republican nomination for president, as I draft this column, the contest between Senators Hillary Clinton and Barack Obama to win the … [Read more...]
Thermal Conductivity Of Liquid Metals
This column deals with the thermal conductivity and melting points of liquid metals. Thinking about liquid metals, many people associate them with high temperatures. It is not widely known that some metallic alloys are liquid below 0�C, with the exception of course of mercury which was already known in ancient times. China's first emperor is said to have been buried in rivers … [Read more...]
On The Hate/Love Relationship Between The U.S. And SI
Last year I devoted some words on correligion: the religious belief in the usefulness of correlations to solve real-life problems. I forgot to mention that correlations have one big advantage; they are dimensionless meaning that they are the same for everyone, including people from outside the US. Unfortunately this is not the case for most common units, and the struggle for … [Read more...]
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