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

A technology of magnetic fluid power generation and thermoacoustic engine, which is applied in the direction of hot gas variable displacement engine device, machine/engine, Stirling engine, etc. Loss and other issues, to meet the needs of power transmission and electrical equipment, flexible power, stable conversion effect

Active Publication Date: 2019-04-02
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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

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Embodiment 1

[0028] In the liquid metal magnetic fluid power generation system driven by a single-stage loop traveling wave thermoacoustic engine of the present invention, the liquid metal magnetic fluid generator is coupled to the resonance tube of the single-stage loop traveling wave thermoacoustic engine that uses the cavity as a phase modulation method. The thermoacoustic effect converts the thermal energy of the external heat source into the sound energy (mechanical energy) of the reciprocating oscillation of the working gas. The reciprocating oscillation of the gas pushes the liquid metal in the multi-layer annular channel to reciprocate in the magnetic field. The liquid metal cuts the magnetic force line to generate an induced electromotive force. The plate electrodes in adjacent power generation channels are connected in series with each other through wires, which increases the total output voltage and total internal resistance of the liquid metal magnetic fluid generator, and finall...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K44/10H02K44/16F02G1/043
CPCF02G1/043F02G2243/54H02K44/10H02K44/16
Inventor 罗二仓张丽敏朱顺敏余国瑶吴张华戴巍
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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