Background The cooling of electronics and telecom equipment is essential to the proper operation of all applications. Removal of generated heat from these systems has been traditionally carried out via heat conduction/convection techniques. Phase Change Materials (PCMs) are a relatively new concept for the cooling of electronic systems. A PCM is used to absorb peak energy … [Read more...]
Using Wide Bandgap Materials in Power Electronics Presents a New Set of Thermal Challenges
The power electronics industry has reached the theoretical limits of silicon and now is moving to other semiconductor materials whose performance meets the requirements of today’s high power density systems. A number of techniques are being used to overcome the thermal limitations of power modules. One approach is using semiconductor materials which are able to bypass Si’s … [Read more...]
You’re Sending That Heat “Away” to Where, Exactly?
Engineers are generally hard-nosed realists and don’t rely on the mythical kingdoms of fairy tales where only good things can happen and all problems disappear. Still, there is one magical place which is often called out when dealing with the thermal aspects of design, and it has the simple name of “away.” How so? Cooling devices and techniques – including heat sinks, heat … [Read more...]
The Impact of Hybrid Cooling on the Power and Computational Efficiency of Cloud Computing Racks
A noteworthy trend in data centers is to reduce the power consumption of cooling facilities by increasing the supplied temperature to IT services, thereby requiring less work within the cooling facility to provide the targeted temperature. This will result in lower overall power consumption and higher computational effectiveness. However, higher inlet water temperature to the … [Read more...]
High-loading Graphene Composites Enhance Thermal Conductivity
It is well known that incorporating graphene fillers to the base (matrix) of a composite thermal interface material (TIM) can improve the resulting thermal conductivity of the composite. In fact, the intrinsic thermal conductivity of large graphene layers exceeds that of the high-quality bulk graphite, which itself is very high: 2000 W m−1 K−1 . But most of the studies of … [Read more...]
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