Attenuation of Disturbances Using Packed Bed of Nanoparticles

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The attenuation of disturbances and shocks is quite important as well as challenging task in a variety of situations. In the present work, the attenuation of disturbance through a packed bed of ultrafine nano-powder that possesses a high degree of void fraction is investigated. Using fast response pressure transducer of response time of 1 ms, both global and local pressure transients were monitored while the packed bed was subjected to flow pulsation of different frequencies. While the local pressure transients show a ten-fold increase in the pressure signal due to the velocity disturbance, the global pressure transients are however quite subdued hardly showing a two-fold increase than that recorded for the steady state pressure drop case. This aspect of the packed bed of nano-powders can be effectively utilized for the attenuation of disturbances.

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Journal: TechConnect Briefs
Volume: 1, Advanced Materials: TechConnect Briefs 2015
Published: June 14, 2015
Pages: 357 - 359
Industry sector: Advanced Materials & Manufacturing
Topic: Nanoparticle Synthesis & Applications
ISBN: 978-1-4987-4727-1