Time resolved study of ignition of microwave discharge in liquid hydrocarbons

被引：7
|
作者：
Lebedev, Yuri A. [1 ]
Krashevskaya, Galina V. [1 ,2 ]
Batukaev, Timur S. [1 ]
Mikhaylyuk, Andrey V. [2 ]
机构：
[1] Topchiev Inst Petrochem Russian Acad Sci TIPS RAS, Lab Plasma Chem & Phys Chem Pulse Process, Leninsky Ave 29, Moscow 119991, Russia
[2] Natl Res Nucl Univ MEPhI, LAPLAZ, Moscow, Russia
来源：
PLASMA PROCESSES AND POLYMERS | 2022年 / 19卷 / 05期
关键词：
discharge in liquids; microwave discharge; optical diagnostics; Schlieren method; shadow photographs; shock waves; sound oscillations; N-HEPTANE; GENERATION; BREAKDOWN; PLASMA;
D O I：
10.1002/ppap.202100215
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Results of the study of acoustic phenomena and changes in the structure of the microwave (2.45 GHz) discharge in liquid hydrocarbons in time are presented. Discharge was ignited at the tip of microwave antennas with conical or rounded ends. Petroleum solvent Nefras was chosen as representative of liquid hydrocarbons. Electret microphone and high-speed video cameras were used to study the discharge. It is shown that the discharge is always attached to the top of the cone in the case of the conical end of the antenna whereas ignition of the discharge generates in the gas part of the reactor a set of acoustic oscillations with frequencies corresponding to the characteristic oscillations of the reactor.
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页数：11
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