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.
|Number of pages||5|
|Journal||Journal of Vibration and Acoustics Transaction on ASME|
|Early online date||10 Nov 2017|
|Publication status||Published - Apr 2018|
- Thermoacoustic devices
- Engineering prototypes
- Wood products