高压电器2017，Vol.53Issue(4)：5-12,8.DOI:10.13296/j.1001-1609.hva.2017.04.002
微秒和纳秒脉冲激励下甲烷DBD电学特性研究
Electric Characteristics Research of Methane Discharge Based on DBD Reactor Under Microsecond and Nanosecond Pulse Power Sources
摘要
Abstract
More valuable C2 hydrocarbon and hydrogen can be produced from cracking methane by plasma technology.It is very important to optimize the plasma discharge parameters to increase methane conversion efficiency.In this paper,methane cracking by coaxial DBD reactor driven by homemade pulse power supply(microsecond pulse and nanosecond pulse) was characterized.The influence of power parameters and gas flow rate on breakdown voltage,discharge images,Lissajous figures and pulse energy and power were well studied,which provides solid experimental references for methane conversion.The results showed that,the initial breakdown voltage decreased with the pulse repetition rate increase,but this relationship was more evident under nanosecond pulse power.Discharge intensity increased with the pulse repetition rate increase and the microsecond pulse power could bring more intensity of discharge.Under the same applied voltage,the repetition frequency and gas flow rate had no influence on the Lissajous figures and the figures under microsecond pulse power was more close to typical parallelogram.The discharge energy was correlated with applied voltage when under the same gas flow rates and pulse repetition frequencies.The discharge energy in the single discharge was not dependent on the repetition frequency when kept the same gas flow rate and applied voltage.Besides,higher instantaneous energy was obtained by nanosecond pulse power supply compared to microsecond pulse power supply.The experiments showed that pulse power could be used to crack methane in the DBD reactors and it can get higher system efficiency under the nanosecond pulse power.关键词
等离子体/甲烷/DBD/脉冲重复频率/纳秒脉冲Key words
plasma/methane/DBD/pulse repetition frequency/nanosecond pulse引用本文复制引用
张凯,王瑞雪,高远,张帅,邵涛,严萍..微秒和纳秒脉冲激励下甲烷DBD电学特性研究[J].高压电器,2017,53(4):5-12,8.基金项目
国家自然科学基金中英人才基金(51561130156,51507169) （51561130156,51507169）
英国皇家学会牛顿高级学者基金(NA140303).Project Supported by the National Natural Science Foundation of China(51561130156,51507169),Royal Society-Newton Advanced Fellowship UK(NA140303). （NA140303）
