Laboratory for Mathematical Modelling
of Environmental and Technological Processes

A. Brēķis, J.E. Freibergs, A. GailÄ«tis, A. Alemany

New Experimental Results from Testing "Space Trips" Facility of Thermoacoustic System Coupled with Magnetohydrodynamic Generator


In this paper are presented a new results of testing travelling wave thermoacoustic (TAc) generator, coupled with alternating current magnetohydrodinamic (MHD) generator in FP7 project "Space Trips". This project relates to experimental testing of radioisotopic-feeded electrical power supply system for deep space applications. There are analized and described experimental graphs of thermoacoustic generator like pressure oscillation amplitude as a function of mean pressure and temperature. A certain extrapolation of them had been performed. Also a thermoacoustic excitation graph is plotted, where are shown critical values when acoustic power generation starts to generate soundwave.

Full paper

Proceedings of the VIII International Scientific Colloquim "Modelling for Materials Processing", Riga, Latvia, (2017), pp. 107-112.