Izvestiya of Saratov University.
Physics
ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)

термоакустика

Experimental study of a bidirectional impulse turbine in a steady gas flow

Background and Objectives: The bidirectional impulse turbine can be used to generate electricity from the energy of sea waves or to convert acoustic energy into electrical energy in thermoacoustic generators. Materials and Methods: In this paper, an experimental study of the characteristics of a bidirectional turbine in a constant gas flow was carried out. The experiments were carried out with a fixed and freely rotating turbine rotor. The outer diameter of the turbine blades is 44 mm.

Numerical simulation of stages number influence to the characteristics of a looped tube thermoacoustic Stirling engine

Background and Objectives: The traveling wave thermoacoustic engine is a variation of the Stirling engine family. With an increase in the number of stages of a traveling wave thermoacoustic engine from one to four, an improvement in the characteristics of the acoustic wave in the regenerator zone is observed, the temperature difference between the heat exchangers required to start the engine decreases, and the efficiency increases.

Numerical Simulation of a Looped Tube 4-Stage Traveling-Wave Thermoacoustic Engine

Background and Objectives: The technology of thermoacoustic energy conversion is one of the most promising technologies for converting thermal energy into electrical one. A brief review of the achievements in development of the multi-stage traveling-wave engines was made. The numerical simulation of a 4-stage engine with a load was done. The aim of research was to determine the engine parameters, required to achieve the maximum of efficiency of the system and the acoustic power on the load.