AI Article Synopsis
- The study focused on the chemical effects of a direct current arc plasma igniter by measuring the plasma jet's emission spectrum and analyzing the active particles formed when the plasma interacts with atmospheric air.
- Quantitative measurements of NO and CO volume fractions were taken 8 cm downstream from the igniter exit using a smoke analyzer, revealing a correlation between arc current and the amounts of these gases produced.
- The findings indicated that the plasma jet generated a variety of active, charged, and excited particles, with both NO and CO levels increasing as arc current and argon flow rate rose.
Article Abstract
To study the chemical effect of direct current arc plasma igniter, the emission spectrum of plasma jet was measured, and the active particles produced by the interaction of plasma jet with atmospheric air were analyzed. The NO and CO volume fractions were measured quantificationally by smoke analyzer at the 8cm downstream the plasma igniter exit, and the changing law between arc current and NO, CO volume fractions was obtained. The results show that the plasma jet interacting with atmospheric air produced active particles (H, O, N), charged particles (O2 +, N2+), and excited particles (N2 (A3), N2 (B3), N2 (C3), N2 (a1), O2 (a1), O2 (b1)). The NO and CO volume fractions increased with rising of are current and feedstock argon flow rate.
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