DBD等离子体致动器——电子产品中紧凑高效的冷却替代方案.pdf

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1、OCP EMEA Summit 29 April|Dublin,IrelandMiguel Angel CotaDBD Plasma Actuators:A Compact and Efficient Cooling Alternative for ElectronicsBackground and Motivation Fans face challenges in compact spaces.Noise,mechanical wear,and static zones reduce efficiency.Reducing noise,vibration,and mechanical co

2、mplexity Generates airflow via ionization,with minimal noise and bulk.Promising results in dissipating heat from high-density components.Exploring new methods like DBD plasma for next-generation solutions Thermal management is crucial to avoid performance throttling.Seeking quieter,thinner,and energ

3、y-efficient alternatives.Driving innovation toward more robust and reliable thermal management Modern electronic devices are more powerful yet smaller than ever.Increasing watt density leads to higher internal temperaturesAddressing evolving cooling demands in ultra-compact devices.What Are Plasma A

4、ctuators?Plasma RegionDielectric MaterialElectrodeElectrode Two electrodes(one exposed,one buried)separated by a thin dielectric material(e.g.,Teflon,Kapton).High AC voltage(kV range,kHz frequency)applied across electrodes.Fundamental Setup The strong electric field ionizes the nearby air.Creates a

5、region of charged particles“plasma”just above the dielectric surface.Formation of Plasma The electric field accelerates ions from the exposed electrode toward the grounded/buried electrode.Collisions between ions and neutral air molecules produce a net bulk airflow known as the ionic wind.Body Force

6、 on Charged ParticlesWhat Are Plasma Actuators?Plasma RegionDielectric MaterialElectrodeElectrodeELECTRIC FIELD MODULE(V/m)ELECTRIC FIELD(V/m)Volumetric Force(N/m3)Key Equations and Parameters for DBD Plasma Actuatorso U Applied Voltage(V)o d Distance Between Electrodes(m)o Eb Dielectric Breakdown E