Design and optimization of a cascade thermoacoustic Stirling engine. (November 2013)

• Record Type: Journal Article
• Authors: Karimi, M; Ghorbanian, K
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 227:Number 7(2013)
• Page Start: 814
• Page End: 824
• Publication Date: 2013-11
• Subjects: Thermoacoustic Stirling engine -- cascade engine -- critical temperature gradient -- acoustic power; Mechanical engineering -- Periodicals; Power (Mechanics) -- Periodicals; Production engineering -- Periodicals; 621
• DOI: 10.1177/0957650913495847
• Languages: English
• ISSNs: 0957-6509

Abstract

This article deals with the design and optimization of a cascade thermoacoustic Stirling engine. Different configurations for cascade thermoacoustic Stirling heat engine are investigated. A simplified model is proposed to enable initial design guidelines. The most important characteristics of the cascade system are examined. The results indicate that the thermoacoustic engines in cascade configuration may achieve very low onset temperatures. A suitable configuration is selected and the locations and dimensions of different thermoacoustic units are optimized to achieve low onset temperatures as well as high values for the acoustic power output and efficiency. The results support the employment of cascade engine systems.