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Modelling and Simulation of a Thermoacoustic Stack with Experimental Comparison

Author(s):

M. Grauwiler
Conference/Journal:

Master Thesis, FS12 (10260)
Abstract:

This thesis is concerned with developing a model of a thermoacoustic stack used in a thermoacoustic heat pump. The model is derived from rst principle equations and implemented as an extendible simulation framework for MATLAB/Simulink. A thermoacoustic stack was 3d-printed from Acrylonitrile butadiene styrene (ABS) and used in a simple experimental setup of a thermoacoustic heat pump. Stack temperatures as well as pressure measurements were recorded. Results from the experiment are compared to the simulation predictions. It is found that the simulation overestimates the performance of the experimental device. This lies in the fact that the model is idealised and does not consider the many sources of losses in a thermoacoustic device. To conclude, an outlook on possible future work is given, especially concerning re- nement of the simulation framework, as well as some suggestions for further improvements to the experimental setup.

Year:

2013
Type of Publication:

(12)Diploma/Master Thesis
Supervisor:

R. S. Smith

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% Autogenerated BibTeX entry
@PhdThesis { Xxx:2013:IFA_4369
}
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