Aitech Defense Systems Inc. now offers the NightHawk RCU, a rugged, compact Intel Atom-based, self-contained control unit that weighs only 4.5 pounds. The weight reduction, combined with a slim profile and natural convection/radiation cooling that dissipates up to 22 W at +55°C in stagnant (non-flowing) air, or at up to 71°C with an optional low pressure fan or baseplate, makes … [Read more...]
Handbook Provides Tutorial for Thermoelectric Module Operation
Laird Technologies, Inc. has released its revised “Thermoelectric Handbook.” Available for download from the Laird website, the handbook provides insight into understanding the basic structure and function of TEMs, parameters required for device selection, assembly tips for mounting TEMs onto heat exchangers, and available temperature control options. Designed for engineers … [Read more...]
The Better Box Model
Introduction For the consumer, natural convection cooling or fan-less cooling is the method of choice. It is silent, it is reliable, it is simple, and it is environmentally sound because no additional energy is used to remove the excess heat. For the thermal engineer, fan-less cooling is more problematic. On the plus side, no fan is needed, so there is an attractive cost … [Read more...]
Direct Spray Cooling and System-level Comparisons
Introduction As power densities of embedded electronics increase, cooling becomes a challenge especially in harsh environments. Liquid cooling is accepted as an attractive cooling method for an increasing number of applications. Direct spray is a particularly efficient form of liquid cooling that has recently been included on several manned and unmanned military platforms. This … [Read more...]
Change and Communication
We live in an age of change. Of course this is not new, the history of the human race has been one of change and adaptation throughout the ages. However, it seems that never before has the pace of change been so swift. Throughout the ages, this has been especially true with regards to how we communicate with each other. Our earliest ancestors on the savannas of Africa, in the … [Read more...]
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