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dc.contributor.authorHofler, Thomas J.
dc.date.accessioned2015-08-07T21:59:25Z
dc.date.available2015-08-07T21:59:25Z
dc.date.issued1994-06
dc.identifier.urihttp://hdl.handle.net/10945/45990
dc.descriptionAnnual Summary Report: October 1992 - September 1993en_US
dc.description.abstractResearch on improving the efficiency, cooling power, and cooling power density of thermoacoustic refrigerators is described. A heuristic analysis of short thermoacoustic heat exchangers in a high amplitude sound field is given. A heat exchanger experiment, utilizing a very high amplitude thermoacoustic prime-mover, shows some agreement with the heuristic analysis. This indicates that acoustic losses in the heat exchanger can be drastically reduced in high amplitude engines, while maintaining good thermal effectiveness. Other related, but more applied, research is briefly discussed. This includes the design and construction of a compact, portable, air-cooled, thermoacoustic refrigerator for the purpose of producing frost at a lecture demonstration. This design has roughly the same temperature span (40 deg C) as required by shipboard applications. Also, two new electrodynamic acoustic drivers have been designed and one design has been constructed. These designs offer high efficiency, good power density, and low cost and are probably scalable up to significantly higher acoustic power levels.en_US
dc.description.sponsorshipOffice of Naval Researchen_US
dc.language.isoen_US
dc.relation.ispartofseriesNPS-PH-94-009
dc.subjectThermoacousticen_US
dc.subjectRefrigerationen_US
dc.subjectHeat exchangeen_US
dc.subjectHeat transporten_US
dc.titleImproved Efficiency and Power Density for Thermoacoustic Coolersen_US
dc.typeTechnical Reporten_US
dc.contributor.departmentPhysicsen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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