Research on the rapid combustion process of butane under microwave discharge

Abstract

To study the combustion process of fuel in the microwave plasma torch, we designed a butane microwave plasma device exploiting a tungsten rod as an electrode. Through analysis of the image record by high-speed camera, we found that the discharge of butane microwave plasma torch is a cyclic process at atmospheric pressure at a frequency of around 100 Hz. During the discharge, the active particles continuously diffuse from the electrode to the outside like the bloom of the flower. Then, the variation of plasma torch of jet height and temperature with microwave power is obtained. In addition, we studied the effects of different butane flow rates on the plasma torch. The results illustrate that excessive butane will lead to carbon deposition on the electrode. All in all, this work provides a new understanding of the combustion of the microwave plasma torch, which is conducive to the further development of microwave plasma in the fields of waste gas treatment, fuel combustion, and plasma engine.

Numerical study of the effect of ultrasound waves on the turbulent flow with chemical reaction in the combustion chamber

“…Fig. 16 Diagram of the effect of changing the injector angle on fuel mass In Fig. 16, the most suitable injector angle is 40 to 45 degrees, creating the minor fuel film on the walls.…”

“…According to this study, a multiphase flow liquid injection system can generate cavitating flows, validating the multiphase CFD simulation. Tang et al [16] found that the release of the butane microwave plasma torch is a cyclic process at atmospheric pressure and a frequency of around 100 Hz. According to this research, during the discharge, the active particles continuously diffuse from the electrode to the outside.…”

Plasma Ignition via High-Power Virtual Perfect Absorption

“…Among the numerous methods for efficient plasma ignition, electromagnetic energy stands out for its exceptional proficiency. , This approach concentrates electromagnetic waves intensely to trigger conditions conducive to plasma breakdown. Various components, including surfatrons, slot antennas, and resonant cavities, are employed in these systems, culminating in the development of resonator-based plasma sources (RPSs). , RPS systems bring unique advantages, such as the absence of electrodes, effectively preventing contamination, and remarkable energy efficiency across a wide range of gas pressures .…”