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The thermal management of high power LED bears the potential of achieving higher efficiencies as well as an increased lifetime. Yet so far none of the conventional cooling techniques are suitable for use with general illumination: The devices emit audible noise, have a short life time, or are sensitive against dust and debris. The goal behind this work was to develop a solution that has none of these...
A new approach for forced convection cooling based on “Reynolds streaming” is presented, which allows for additional heat dissipation in situations where conventional active cooling devices (e.g. fans) are not suitable. The system operates inaudible, has no moving parts and is therefore durable and immune to dust. Its operation is dependent on numerous influences that have been identified and analyzed...
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