Scaling up of transitional “warm” plasmas to industrial level gives possibility to develop plasma systems that combine advantages of thermal and non thermal discharges such as low temperature and high process selectivity (compare to thermal plasma) at high pressure and average power density. Non-equilibrium “cold” gliding arcs (with observation of equilibrium to non equilibrium transition) has been demonstrated at power level 2–3 kW and proved to be a highly efficient plasma stimulators of several plasma chemical and plasma catalytic processes, including hydrogen/syngas generation from biomass, coal and organic wastes, exhaust gas cleaning, fuel desulfurization and water cleaning from emerging contaminants. The gliding arc evolution includes initial micro-arc phase with fast transition to transient non-equilibrium phase with elevated electric field, low gas and high electron temperatures, as well as selective generation of active species typical for cold plasmas. The paper will describe experimentally achieved scaling up of the non-equilibrium gliding arc discharges to the level of 10–15 kW, as well as theoretical scaling up limitations of this powerful non-equilibrium plasma systems.

将过渡性“热”等离子体按比例扩大到工业水平使开发等离子体系统成为可能，该系统结合了热放电和非热放电的优点，例如低温和高压和平均功率密度下的高工艺选择性（与热等离子体相比）。非平衡“冷”滑动弧（观察到平衡到非平衡转变）已在 2-3 kW 功率水平下得到证明，并被证明是多种等离子体化学和等离子体催化过程（包括氢气/合成气）的高效等离子体刺激器生物质、煤和有机废物的发电、废气净化、燃料脱硫和新兴污染物的水净化。滑动电弧演化包括初始微弧阶段快速过渡到具有升高电场、低气体和高电子温度的瞬态非平衡阶段，以及选择性生成冷等离子体典型的活性物质。该论文将描述通过实验实现的非平衡滑动电弧放电放大到 10-15 kW 的水平，以及这种强大的非平衡等离子体系统的理论放大限制。