Thermoacoustic plasma magnetohydrodynamic power generator

By combining a thermoacoustic engine and a plasma magnetohydrodynamic power generation component, the thermoacoustic plasma magnetohydrodynamic power generation device solves the problems of complex structure and difficult seed recovery in plasma power generation technology, and achieves efficient and environmentally friendly power generation.

CN117477893BActive Publication Date: 2026-07-21TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Filing Date
2022-07-20
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing plasma power generation technologies face challenges such as complex structures and difficulties in seed recovery, hindering their large-scale application.

Method used

Design a thermoacoustic plasma magnetohydrodynamic power generation device, which combines a thermoacoustic engine and a plasma magnetohydrodynamic power generation component. The plasma is generated in a plasma generation chamber, and the thermal energy is converted into acoustic energy through the thermoacoustic effect. This drives the plasma in the magnetohydrodynamic power generation chamber to oscillate back and forth, cutting magnetic field lines and generating an induced electromotive force.

Benefits of technology

It achieves thermoacoustic-driven power generation without moving parts, improves power generation efficiency, simplifies the structure, avoids seed gas loss and circulation problems, and features high efficiency, environmental protection and compactness.

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Abstract

The application provides a thermoacoustic plasma MHD power generation device, which comprises a thermoacoustic engine and a plasma MHD power generation assembly; the plasma MHD power generation assembly comprises a plasma generation chamber and a MHD power generation chamber connected with each other, and the thermoacoustic engine is connected with the MHD power generation chamber; wherein the plasma MHD power generation assembly provides heat energy for the thermoacoustic engine, the plasma generation chamber is used for generating plasma, the thermoacoustic engine can convert heat energy into sound energy through a thermoacoustic effect, so that the plasma in the MHD power generation chamber reciprocating oscillates to cut magnetic induction lines, an induced electromotive force is generated, and electric power is output through an external load. The induced electromotive force is generated by cutting the magnetic induction lines with the alternating flow of the plasma, while in a traditional MHD power generation system, the plasma flows in one direction; the sound wave generated by the thermoacoustic engine drives the plasma to reciprocating oscillate, and the thermoacoustic driving power generation without moving parts is realized.
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