Liquid metal magnetohydrodynamic power generation system driven by single-stage loop traveling wave thermoacoustic engine

Abstract

The invention discloses a liquid metal magnetohydrodynamics generation system driven by a single-loop travelling-wave thermoacoustic engine. The liquid metal magnetohydrodynamics generation system comprises the single-loop travelling-wave thermoacoustic engine (1), wherein a U-shaped electrical insulation pipeline is arranged between a resonatron (16) and a containing cavity (17) of the single-loop travelling-wave thermoacoustic engine (1); the electrical insulation pipeline is full of a liquid metal working medium; and a liquid metal magnetohydrodynamics generator (2) is arranged in the electrical insulation pipeline. Compared with the existing thermoacoustic driven magnetohydrodynamics generation system, the thermoacoustic engine in the liquid metal magnetohydrodynamics generation system driven by the single-loop travelling-wave thermoacoustic engine is small in size, light in weight, high in energy density and low in onset and operating temperature, and is more suitable for utilization of heat sources in medium and low temperature zones; and in addition, the output characteristic of the generation system is well improved, so that demands of power transmission and power utilization equipment can be well met.

Description

technical field [0001] The invention relates to the field of thermoacoustic power generation, in particular to a liquid metal magnetic fluid power generation system driven by a single-stage loop traveling wave thermoacoustic engine. Background technique [0002] A thermoacoustic engine is a device that uses pipes and heat exchangers to construct a suitable sound field, and converts external heat energy into sound energy through the interaction between the working medium and the regenerator. As a new type of external combustion heat engine, it has the advantages of no mechanical moving parts, high reliability, long life and high potential thermal efficiency. According to the sound field characteristics of thermoacoustic conversion, thermoacoustic engines can be divided into traveling wave thermoacoustic engines and standing wave thermoacoustic engines. Compared with the standing wave thermoacoustic engine based on the irreversible cycle, the traveling wave thermoacoustic eng...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of the existing thermoacoustic driven magnetic fluid power generation system, such as the large volume and weight of the thermoacoustic engine, the serious loss of the resonant tube, and the poor output characteristics of the power generation system, and provide a single-stage loop traveling wave thermoacoustic engine. liquid metal magnetic fluid power generation system

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