Acoustic levitation multi-droplet evaporation and combustion experiment device and method

A droplet evaporation and experimental device technology, applied in the investigation phase/state change and other directions, can solve the problem of inability to study the evaporation and combustion characteristics of small free-form multi-droplets, and achieve the effect of uniform heating

Inactive Publication Date: 2017-09-26
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] The invention solves the problem that the prior art cannot study the evaporation and combustion characteristics of tiny free-form multi-droplets, and provides an acoustic suspension multi-droplet evaporation and combustion experimental device and its method

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  • Acoustic levitation multi-droplet evaporation and combustion experiment device and method

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Embodiment Construction

[0020] A further description of the acoustic suspension multi-droplet evaporation and combustion device of the present invention is given below in conjunction with the embodiments and accompanying drawings:

[0021] An acoustic levitation multi-droplet evaporation and combustion device of the present invention includes an acoustic levitation device, an evaporation and combustion chamber 1 , an acoustic levitation control system, and a control unit 2 . The acoustic levitation device includes a frequency converter 6, a reflector 14, and an alignment tool 7 between the frequency converter and the reflector; the evaporation and combustion chamber includes an evaporation combustion chamber body 1, a plurality of evenly arranged stainless steel heating rods 15, an observation window and a temperature sensor 4 and 10; the acoustic levitation control system includes a signal generator 8, a power amplifier 11 and a power meter 13; the control unit is respectively connected to the acoust...

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Abstract

The invention discloses an acoustic levitation multi-droplet evaporation and combustion experiment device and method and relates to the technical field of internal combustion engine combustion detection. The device comprises an acoustic levitation device, an evaporation combustion chamber (1), an acoustic levitation control system and a control unit (2), wherein the evaporation combustion chamber (1) is connected with the acoustic levitation device, and the control unit (2) is connected with the evaporation combustion chamber (1) through a wire; the acoustic levitation device comprises a frequency converter (7) and a reflector (13); the acoustic levitation control system comprises a signal generator (8), a power amplifier (10) and a power meter (12). By the device, the experimental researches of the evaporation and combustion features of multiple tiny droplets under a deformation-free condition can be achieved.

Description

technical field [0001] The invention relates to the technical field of internal combustion engine combustion detection, in particular to an acoustically suspended multi-droplet evaporation and combustion experimental device and a method thereof. Background technique [0002] The factors affecting the combustion of liquid fuel in internal combustion engines mainly include the fragmentation, evaporation and mixing of liquid fuel with air. Among them, droplet combustion is the most critical part. Droplet combustion is accompanied by complex physical and chemical processes such as heat transfer, mass transfer, and gas flow. When the fuel droplet is heated, it first evaporates on its surface to generate steam, the steam diffuses around and mixes with the surrounding air, and then starts to burn, that is, the combustion of the droplet is usually carried out in the state of steam. Droplet combustion is usually diffusion combustion, with fast burning speed and slow evaporation spe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/02G01N25/12
CPCG01N25/02G01N25/12
Inventor 王筱蓉王继刚王勋任贵龙金张良何强唐文献
Owner JIANGSU UNIV OF SCI & TECH
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