Suspension Design, Modeling, and Testing of a Thermo-Acoustic-Driven Linear Alternator

Saha, C. R., Riley, P. H. ORCID: 0000-0002-1580-7689, Jinks, R. & Johnson, C. M. (2018). Suspension Design, Modeling, and Testing of a Thermo-Acoustic-Driven Linear Alternator. Journal Of Vibration And Acoustics, 140(2), 21014. doi: 10.1115/1.4038270

Abstract

The Score-Stove™ generates electricity from a wood-burning cooking stove using a thermo-acoustic engine (TAE) that converts heat to sound through a linear alternator (LA). This paper introduces a prototype hemitoroidal suspension that was refined into a segmented trapezoidal shape that gave a higher cyclic life for the LA 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 70–80% efficiency with the new suspension and a double Halbach array magnetic topology.

Publication Type:	Article
Additional Information:	© ASME 2018
Publisher Keywords:	Acoustics , Design , Modeling , Testing , Cantilevers , Shapes , Theoretical analysis , Loudspeakers , Displacement , Resonance
Subjects:	Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General)
Departments:	School of Science & Technology > Engineering