Mixed line wave thermal sound engine with bouble-end drive

A thermoacoustic engine, a hybrid technology, applied in the direction of machines/engines, mechanisms that generate mechanical power, mechanical equipment, etc., can solve problems such as heater heat waste

Inactive Publication Date: 2005-01-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The jet flow will cause a direct flow of gas in the thermal buffer tube, resulting in a large waste of heat from the heater

Method used

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  • Mixed line wave thermal sound engine with bouble-end drive
  • Mixed line wave thermal sound engine with bouble-end drive
  • Mixed line wave thermal sound engine with bouble-end drive

Examples

Experimental program
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Embodiment Construction

[0030] As shown in the figure, the dual-end driven hybrid traveling wave thermoacoustic engine includes a feedback pipeline 6, a sound volume pipeline 7, a jet pump 8, a main cooler 1, a thermoacoustic regenerator 2, and a heater 3 connected in sequence , thermal buffer tube 4, sub-cooler 5 and a traveling wave loop structure thermoacoustic generator and a straight resonant path 9, the same or a similar traveling wave loop structure thermoacoustic generator is connected to the other end of the resonant straight path 9.

[0031] A bypass structure is provided between the feedback pipeline 6 of the thermoacoustic generator with a traveling wave loop structure connected at one or both ends of the resonant straight path 9 and the thermoacoustic regenerator 2 . The sound capacity pipeline 7 of the thermoacoustic generator with traveling wave loop structure connected to one or both ends of the resonance straight path 9 is connected to the inlet of the resonance straight path 9 with a...

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PUM

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Abstract

The invention discloses a compound traveling wave thermal acoustic motor driven by double ports. It includes a traveling wave loop structure thermal acoustic generator made up of feedback channel, acoustic capacitance channel, ejector pump, a primary cooler, a thermal acoustic regenerator, heater, thermal buffer channel, and a supplementary cooler and resonance straight-path, the another end of the resonance straight-path is connected to the thermal acoustic generator with the same or similar traveling wave loop structure. The invention increase the acoustic power output of the thermal acoustic motor and upgrade the efficiency of the motor, it provides the concept using double port to drive compound traveling wave thermal acoustic motor, the two loop thermal acoustic generators outputs heating power at the same time or singly, thus there has more acoustic power transmitted to the resonance straight-path, the whole system has merits of the pure standing wave motor and pure traveling wave motor. It realizes the running mode of traveling wave, and it has a thermal acoustic conversion power high than the single port type.

Description

technical field [0001] The invention relates to a double-end driven hybrid traveling wave thermoacoustic engine, which can realize the high-efficiency operation of the entire heat engine system. Background technique [0002] A thermoacoustic engine is a sound wave generator that uses the thermoacoustic effect to convert heat energy into sound energy and achieve sound power output. According to different sound field characteristics, thermoacoustic engines are mainly divided into three types: standing wave type, traveling wave type and standing wave traveling wave hybrid type. Since the phase difference between the velocity wave and the pressure wave in the standing wave acoustic field is 90°, theoretically there is no work transmission in the standing wave field; It is an irreversible thermodynamic cycle, so the efficiency of the thermoacoustic engine is low. The traveling wave thermoacoustic engine utilizes the traveling wave sound field, the phase of the velocity fluctuat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G7/00
Inventor 邱利民孙大明陈萍严伟林甘智华陈国邦
Owner ZHEJIANG UNIV
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