Investigation of the Use of Loudspeaker as a Liner Alternator for Thermoacoustic Application

DOI

10.2991/cisia-15.2015.60How to use a DOI?

Keywords

low-cost; linear alternator; loudspeaker; thermoacoustic; thiele/small parameter

Abstract

Thermoacoustic engine technology has been applied to convert heat energy into acoustic energy for the purpose of electricity generation. However, linear alternators are relatively expensive. Recently, SCORE (www.score.uk.com) has successfully developed 22.7 watts of electricity power using a Thermo-Acoustic engine (TAE) with an ordinary audio loudspeaker as a linear alternator. However, the power-transduction efficiency of loudspeakers is usually poor due to their physical properties such as paper cones are weak and fragile, strokes are limited, and their impedances are poorly matched to gas at high pressure. As a matter of fact, it is good to understand the physical properties of loudspeakers so as to understand better of the overall power transduction efficiency. This paper describes a method of measuring a low-cost loudspeaker’s Thiele/Small parameter (T/S) for the thermoacoustic engine electrical generation application based on the method proposed by A.N.Thiele and Richard H. Small.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - B.M Chen
AU  - R.H Jiang
AU  - K. Ho
AU  - A. Abakr
AU  - P. Riley
PY  - 2015/06
DA  - 2015/06
TI  - Investigation of the Use of Loudspeaker as a Liner Alternator for Thermoacoustic Application
BT  - Proceedings of the International Conference on Computer Information Systems and Industrial Applications
PB  - Atlantis Press
SP  - 226
EP  - 229
SN  - 2352-538X
UR  - https://doi.org/10.2991/cisia-15.2015.60
DO  - 10.2991/cisia-15.2015.60
ID  - Chen2015/06
ER  -