Development of parallel thermoacoustic engine: Evaluations of onset temperature ratio and thermal efficiency

Acoustical Science and Technology

Yoshiaki Watanabe¹  Yosuke Nakano³  Shin-ichi Sakamoto²  Aiko Kido¹ 

[1] Faculty of Life and Medical Sciences, Doshisha University;Department of Electronic Systems Engineering, University of Shiga Prefecture;Faculty of Science and Engineering, Doshisha University

关键词: Parallel thermoacoustic engine;    Cascade thermoacoustic engine;    Onset temperature ratio;    Thermal efficiency;   

DOI  :  10.1250/ast.36.149

学科分类：声学和超声波

来源: Acoustical Society of Japan

【 摘 要 】

References(19)Cited-By(2)For practical applications of a thermoacoustic system using factory exhaust heat or solar heat, it is necessary to decrease the onset temperature ratio. In a previous study, a cascade thermoacoustic system with a number of prime movers connected in series was examined. This system can be driven at a lower onset temperature ratio than a conventional thermoacoustic system with a single prime mover. However, there are some problems with this system: it cannot be driven continuously and its thermal efficiency is low. Therefore, a parallel thermoacoustic engine was proposed. In this study, we compared the onset temperature ratios and thermal efficiencies of three systems: a normal thermoacoustic engine with a single prime mover, a cascade thermoacoustic engine, and a parallel thermoacoustic engine with two prime movers. The results indicated the parallel thermoacoustic engine to be advantageous in terms of the onset temperature ratio and thermal efficiency.

【 授权许可】

Unknown