Radiatory z materiałem zmiennofazowym do chłodzenia elementów elektronicznych - badania eksperymentalne charakterystyk cieplnych

Maciej Jaworski

Abstract

In the paper basic properties of heat sinks used in electronics cooling, important from the point of view of heat transfer phenomena, were presented. Simple experimental set-up for the measurement of thermal resistance of heat sinks was described. The unit allows to perform studies in both forced and free convection conditions. The possibilities and example applications of the use of phase change materials (PCMs) for electronics cooling were discussed. Two heat sinks with PCM incorporated in their structures were shown. Results of experimental investigation of thermal performance characteristics of these radiators were given and discussed in details. In the tests performed the thermal behavior of heat sinks with PCM in simulated failure of primary cooling system was investigated.