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Experimental characterization of novel microdiffuser elements

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dc.contributor.author Ehrlich, Leicester
dc.contributor.author Punch, Jeff
dc.contributor.author Jeffers, Nicholas
dc.contributor.author Stafford, Jason
dc.date.accessioned 2018-01-29T11:31:52Z
dc.date.available 2018-01-29T11:31:52Z
dc.date.issued 2014
dc.identifier.uri http://hdl.handle.net/10344/6499
dc.description peer-reviewed en_US
dc.description.abstract Micropumps can play a significant role in thermal management applications, as a component of microfluidic cooling systems. For next-generation high density optical communication systems, in particular, heat flux levels are sufficiently high to require a microfluidic circuit for cooling. Valveless piezoelectrically-actuated micropumps are a particularly promising technology to be deployed for this application. These pumps exploit the asymmetric flow behaviour of microdiffusers to achieve net flow. They feature no rotating or contacting parts, which make them intrinsically reliable in comparison to micropumps with active valves. In this paper, two novel microdiffuser elements are reported and characterized. The micropumps were fabricated using a 3D Printer. Each single diffuser had a length of 1800 m and a depth of 400 m. An experimental characterization was conducted in which the flow rate and differential pressure were measured as a function of operating frequency. In comparison with standard diffuser, both elements showed an increase in differential pressure in the range of 40 - 280 %, but only one of the elements exhibited an improved flow rate, of about 85 %. en_US
dc.language.iso eng en_US
dc.publisher IOP Publishing en_US
dc.relation.ispartofseries Journal of Physics: Conference Series;525, 012008
dc.relation.uri http://dx.doi.org/10.1088/1742-6596/525/1/012008
dc.subject flow rectification en_US
dc.subject micropump en_US
dc.title Experimental characterization of novel microdiffuser elements en_US
dc.type info:eu-repo/semantics/conferenceObject en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.date.updated 2018-01-29T08:56:13Z
dc.description.version PUBLISHED
dc.identifier.doi 10.1088/1742-6596/525/1/012008
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor IDA en_US
dc.relation.projectid 10/CE/11853 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1621721
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed


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