INTRODUCTION Over the last 10 years, there has been a well-documented increase in the energy density of electronic devices. As this energy density has gone up, so has the heat dissipation on electronics packages. In response to this challenge, significant research has taken place to develop chip level cooling systems to meet heat fluxes in excess of 1000W/cm2. As stated … [Read more...]
Self-Ventilating Heat Exchanger Cools Sealed Compartments without Contamination
AMETEK Rotron has introduced the new Discus self-ventilating heat exchanger designed to cool sealed airborne or ground-based electronic and optical compartments without introducing contaminated external air. Ideal for pod-mounted airborne optical systems, the Discus can also be used to cool other aircraft, helicopter, drone and ground-based electronics requiring air … [Read more...]
Solving the Thermoelectric Mystery
Thermoelectric materials—substances that exhibit the so-called thermoelectric effect, in which a temperature difference creates an electric potential or vice versa—have been known for decades and employed in applications including power generation and refrigeration. Despite their commercial use, however, scientists have remained somewhat baffled as to why some of these … [Read more...]
Heat Pipe Assembly for Spacecraft and Hypersonic Vehicles Passes NASA Hypersonic Tests
Advanced thermal solutions provider Thermacore has announced that its heat pipe assembly recently completed testing at the NASA Ames Arc Jet Complex operating at very high temperatures in a hypersonic leading edge simulation, making it the first rigid embedded heat pipe module to operate successfully at those conditions. The demonstration confirms that the embedded heat-pipe … [Read more...]
Waste Sulfur May Improve Thermal Imaging Lenses
The discovery of a new use for waste material left over refining fossil fuels could lead to benefits for the thermal imaging industry. A University of Arizona-led international team has found that the sulfur left over from the refining process can be transformed into inexpensive, lightweight plastic lenses for infrared detection devices. "We have for the first time a polymer … [Read more...]
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