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Compact thermoacoustic array energy converter

An energy converter, heat energy conversion technology, applied in the direction of machine/engine, electric motor applying thermal effect, hot gas variable capacitance engine device, etc., can solve the problem of undesired positive feedback, limiting performance and efficiency, reducing and so on

Inactive Publication Date: 2015-01-14
UNIV OF UTAH RES FOUND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This device addresses the problems of other prior art devices by using a resonator that also serves as the housing for the electromechanical transducer, a stack of random optical fibers made of a material with poor thermal conductivity, and a A pair of heat exchangers made of a material with good thermal conductivity on opposite sides of the
However, positive feedback of the system is undesirable and thus reduces the generated electrical
[0012] Electronic devices and machines generate waste heat, which limits their performance and efficiency

Method used

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  • Compact thermoacoustic array energy converter
  • Compact thermoacoustic array energy converter
  • Compact thermoacoustic array energy converter

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Embodiment Construction

[0029] The present invention relates to systems and methods related to thermoacoustic devices. Those skilled in the art will appreciate that the embodiments described herein, while illustrating certain embodiments, are not intended to limit the scope of the invention or the appended claims. Those skilled in the art will appreciate that various combinations and modifications can be made to the embodiments set forth herein without departing from the scope of the present invention. All such alternative embodiments are within the scope of the invention. Similarly, while the drawings depict example embodiments of devices and components according to the invention and illustrate the principles on which the devices are based, they are exemplary only and any modifications to the innovative features presented herein are considered within the scope of the invention.

[0030] Based on the need for thermal management and energy conversion from heat to electricity, efficient and compact t...

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Abstract

A thermoacoustic array energy converter consists of heat driven thermoacoustic prime movers in parallel coupled by means of an acoustic cavity to a piezoelectric electrical generator whose output is rectified and fed to an energy storage element. The prime movers convert heat to sound in a resonator. The sound form a phase-locked array is converted to electricity by means of the piezoelectric element. The generated electric energy is converted to DC by means of a rectifier set and it is then stored in a battery or supercapacitor. The generated electric energy can also be converted to power line frequency.

Description

[0001] government rights [0002] This invention was made with government support under N0001403-1-1-0543 awarded by the Office of Naval Research. The government has certain rights in this invention. technical field [0003] The present invention generally relates to systems and methods for generating electricity when converting heat to sound in a resonator. More specifically, the present invention relates to systems and methods for minimizing the direct generation of electricity when converting heat to sound in a device that is compact, lightweight, and capable of handling high power densities. Background technique [0004] The concept of converting heat into sound has been known for over two hundred years. For example, in a "singingpipe" heat is applied to the closed end of a resonant pipe that has a metal mesh inside its tube and a "hot" end near the heated end of the resonant pipe, and a has a "cold" end. The terms "hot" and "cold" refer to their temperature relative...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N10/00
CPCF02G2243/54H02N2/18F02G1/043
Inventor O·G.·辛科Y·S.·权
Owner UNIV OF UTAH RES FOUND