title: Measurement of acoustic output power in a traveling wave engine.
abstract: We built and tested a double-loop thermoacoustic cooler consisting of an engine-loop, a branch resonator, and a cooler-loop. The cooling power of 6.4 W was obtained at the cooling temperature of 0 degrees C, when the input heat power of 416 W was supplied to the engine-loop. We measured the acoustic power and found that the output power emitted from the engine-loop was 12 W, and that the input acoustic power entering the cooler-loop was 6 W.
authors.affiliation: Department of Crystalline Materials Science, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya-City 464-8603, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Miwa
authors.forename: T
authors.initials: T
authors.lastname: Sumi
authors.forename: T
authors.initials: T
authors.lastname: Biwa
authors.forename: Y
authors.initials: Y
authors.lastname: Ueda
authors.forename: T
authors.initials: T
authors.lastname: Yazaki