METHOD FOR PRODUCING ELECTRIC ENERGY BY THERMO-ACOUSTIC MEANS Russian patent published in 2007 - IPC E21B47/00 E21B41/00 

FIELD: engineering of devices for producing electric energy in pipeline for transportation of gas or close to same, possible use for providing power to equipment used in pipeline or near it.

SUBSTANCE: electric energy production method contains following operations: provision of passage of gas through pipeline for transportation of gas along input section of acoustic resonator, as a result of which standing sound wave is created in resonator; provision of passage of flowing substance located in resonator through penetrable body, formed wherein is a certain number of practically stationary cold spots and/or hot spots as a result of adiabatic expansion or contraction of resonating flowing substance; provision of thermal connection between thermo-electric device and at least one of aforementioned cold spots and/or hot spots for producing electric energy. Thermo-electric generator for realization of method contains acoustic resonator, having input portion, made with possible connection to aperture in wall for pipeline for transportation of gas or in wall of equipment, positioned inside the pipeline, penetrable body, positioned in acoustic tubular resonator, and thermo-electric device, for producing electric energy.

EFFECT: increased efficiency of device for producing energy without limitation of current flowing along the pipeline.

2 cl, 1 dwg