A Thermoacoustic Engine with Gas and Liquid Operating Below 10 Hz

2011 ◽  
Author(s):  
Ke Tang ◽  
Tian Lei ◽  
Tao Jin ◽  
Wentao Tang
Keyword(s):  
Thermoacoustic Engine

Simulation of a standing-wave thermoacoustic engine using compressible SIMPLE algorithm

2010 ◽  
Author(s):  
Dongwei Zhang ◽  
Yaling He ◽  
Yong Wang ◽  
Jing Huang ◽  
Liejin Guo ◽  
...  
Keyword(s):  
Standing Wave ◽  
Simple Algorithm ◽  
Thermoacoustic Engine

Modeling of Thermoacoustic Resonators With Nonuniform Medium and Boundary Conditions

2011 ◽  
Vol 133 (3) ◽  
Author(s):  
Konstantin I. Matveev ◽  
Sungmin Jung
Keyword(s):  
Boundary Conditions ◽  
Acoustic Power ◽  
Solid Surfaces ◽  
Small Scale ◽  
Nonuniform Medium ◽  
Thermoacoustic Engine ◽  
Efficient Calculation ◽  
Thermoacoustic Engines ◽  
The Subject ◽  
Low Amplitude

The subject of this paper is modeling of low-amplitude acoustic fields in enclosures with nonuniform medium and boundary conditions. An efficient calculation method is developed for this class of problems. Boundary conditions, accounting for the boundary-layer losses and movable walls, are applied near solid surfaces. The lossless acoustic wave equation for a nonuniform medium is solved in the bulk of the resonator by a finite-difference method. One application of this model is for designing small thermoacoustic engines. Thermoacoustic processes in the regular-geometry porous medium inserted in resonators can be modeled analytically. A calculation example is presented for a small-scale thermoacoustic engine coupled with an oscillator on a flexing wall of the resonator. The oscillator can be used for extracting mechanical power from the engine. A nonuniform wall deflection may result in a complicated acoustic field in the resonator. This leads to across-the-stack variations of the generated acoustic power and local efficiency of thermoacoustic energy conversion.

scholarly journals Performance of a liquid‐sodium thermoacoustic engine

1988 ◽  
Vol 84 (S1) ◽  
pp. S37-S37 ◽  
Author(s):  
A. Migliori ◽  
G. W. Swift
Keyword(s):  
Liquid Sodium ◽  
Thermoacoustic Engine

scholarly journals Application of CFD technique for modelling of the thermoacoustic engine

2011 ◽  
Vol 32 (3) ◽  
pp. 175-190 ◽  
Author(s):  
Sebastian Rulik ◽  
Leszek Remiorz ◽  
Sławomir Dykas
Keyword(s):  
Flow Field ◽  
Numerical Modelling ◽  
Fluid Mechanics ◽  
Computational Technique ◽  
Thermoacoustic Engine ◽  
The Way

Application of CFD technique for modelling of the thermoacoustic engineThe paper is concerned with an important issue from the field of thermoacoustics - the numerical modelling of the flow field in the thermoacoustic engine. The presented way of modelling is based on the solution to fundamental fluid mechanics equations that govern the flow of compressible, viscous, and heat-transferring gas. The paper presents the way of modelling the thermoacoustic engine, the way of conducting calculations and the results which illustrate the correctness of the selected computational technique.

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