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 language | English |
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Article number | 021014 |
Number of pages | 5 |
Journal | Journal of Vibration and Acoustics Transaction on ASME |
Volume | 140 |
Issue number | 2 |
Early online date | 10 Nov 2017 |
DOIs | |
Publication status | Published - Apr 2018 |
Keywords
- Heat
- Loudspeakers
- Testing
- Modeling
- Design
- Thermoacoustic devices
- Engineering prototypes
- Wood products
- Acoustics
- Combustion