title: Energy flow measurements in acoustic waves in a duct.
abstract: Where, how much and how efficiently the energy conversion takes place in a regenerator of a thermoacoustic engine are expressed using the axial distribution of acoustic work flow and heat flow. As a first step in determining the energy flows inside the regenerator, measuring methods of the work flow are briefly described and the experimental results in an acoustic resonator are shown. Applicability of these methods to the regenerator is discussed.
authors.affiliation: Department of Mechanical Systems and Design, Tohoku University, Aoba-ku, Sendai, 980-0013, Japan. biwa@amsd.mech.tohoku.ac.jp <biwa@amsd.mech.tohoku.ac.jp>
authors.forename: Tetsushi
authors.initials: T
authors.lastname: Biwa