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Etude expérimentale sur un moteur thermoacoustique à ondes variables coaxiales.

Experimental study on a coaxial travelling wave thermoacoustic engine.

Auteurs : YANG M., LUO E. C., LI X. M., et al.

Résumé

In order to miniaturize the thermoacoustic devices, the authors designed the first coaxial travelling wave thermoacoustic engine and successfully operated it. The coaxial travelling wave thermoacoustic engine is composed of a 1/4-wavelength resonator filled with nitrogen and a local travelling-wave loop that contains hot and cold heat exchangers, a regenerator and an inertance tubes necessary to force the nitrogen to execute the Stirling cycle. The centre of the regenerator has a hollow hole in which the inertance tube is placed, so the structure of the engine is very compact. The fascinating thing is that the on-set temperature of the engine is 105°C, which is the lowest temperature in all of other thermoacoustic engines, and this is a good progress in the field. It means that a lot of waste heat with low quality can be used to run a thermoacoustic prime mover. The influence of mean pressure, mesh size and regenerator length on the overall performance were measured and analysed.

Détails

  • Titre original : Experimental study on a coaxial travelling wave thermoacoustic engine.
  • Identifiant de la fiche : 2006-1043
  • Langues : Anglais
  • Source : Cryogenics and refrigeration. Proceedings of ICCR 2003.
  • Date d'édition : 22/04/2003

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