Suspension design, modeling, and testing of a Thermo-acoustic driven linear Alternator

Chitta Saha, Paul Riley, Robert Jinks, Mark Johnson

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The Score-Stove™ generates electricity from a wood-burning cooking stove using a thermo-acoustic engine that converts heat to sound through a Linear Alternator (LA). This paper introduces a prototype hemi-toroidal suspension that was refined into a segmented trapezoidal shape that gave a higher cyclic life for the linear alternator and includes a critical evaluation that compares a theoretical analysis with experimental results. The results show an improvement from the 40% efficiency of a standard loudspeaker used in reverse as an LA to 70 to 80% efficiency with the new suspension and a double Halbach array magnetic topology.
    Original languageEnglish
    Article number021014
    Number of pages5
    JournalJournal of Vibration and Acoustics Transaction on ASME
    Volume140
    Issue number2
    Early online date10 Nov 2017
    DOIs
    Publication statusPublished - Apr 2018

    Keywords

    • Heat
    • Loudspeakers
    • Testing
    • Modeling
    • Design
    • Thermoacoustic devices
    • Engineering prototypes
    • Wood products
    • Acoustics
    • Combustion

    Fingerprint

    Dive into the research topics of 'Suspension design, modeling, and testing of a Thermo-acoustic driven linear Alternator'. Together they form a unique fingerprint.

    Cite this