Abstract
A double-acting traveling-wave thermoacoustic engine with liquid-water piston (DTTELP) was proposed by the authors. This article conducted numerical simulation on its performance for the cases of with and without acoustical loads. The effects of mean working pressure and water-piston mass on its non-load performance were firstly discussed. Then, the output performance of this novel thermoacoustic engine under fixed heating temperature was analyzed. Also, influences of different heating temperatures on the performance of this engine were discussed. According to the simulation, the novel double-acting thermoacoustic heat engine (TTHE) is very efficient and a maximum thermal efficiency can reach about 51% when the heating temperature is 1500 K.
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