PPPS 2019

Session

1.6 Plasma Chemistry

O4A

28 Jun 2019, 10:00

DoubleTree at the Entrance to Universal Orlando

Conveners

1.6 Plasma Chemistry

• Jared Miles (Wright Patterson AFB)

871. Reactivity Characterization Due to Ozone Generation by Low-Temperature Plasma Discharges at Engine Relevant Densities

Sayan Biswas (Sandia National Laboratories)

28/06/2019, 10:00

1.6 Plasma Chemistry

Oral

Transient plasma ignition (TPI) – where high-energy, short-pulsed, non-equilibrium plasma are used to ignite flammable mixtures – is of interest to engine developers due to the generation of distributed ignition sites that accelerate initial burn rates and reduced electrode erosion that results from the avoidance of breakdown. Transient plasma discharges produce active radicals (O, OH, etc.)...

814. ATOMIC HYDROGEN GENERATION IN THE IONIZING PLASMA REGION AND EFFLUENT OF A HELIUM-WATER ATMOSPHERIC PRESSURE PLASMA JET BY TWO-PHOTON ABSORPTION LASER INDUCED FLUORESCENCE (TALIF)

Mr Yuanfu Yue (University of Minnesota)

28/06/2019, 10:15

1.6 Plasma Chemistry

Oral

Non-equilibrium atmospheric pressure plasmas received a lot of attentions in the last decade due to promising applications in the biomedical field and for material processing [1]. Reactive species generated by plasmas, such as hydroxyl are considered to play essentials roles for these applications. Atomic hydrogen, another dominant species, shows great potentials in ion reduction leading to...

603. High-temperature uranium plasma chemistry

Dr S. S. Harilal (Pacific Northwest National laboratory)

28/06/2019, 10:30

1.6 Plasma Chemistry

Oral

U plasma spectroscopic features are very dense with the presence of large number of atomic and ionic transitions. For example, U spectrum contains ~100000 lines in the UV and visible spectral range originating from ~1600 energy levels. The spectral features become more complex in the presence of oxygen containing ambient atmosphere which initiates plasma chemistry through oxidation/combustion...

1237. Mapping of 2-D plasma-induced fluid flow using particle image velocimetry

Ms Janis Lai (University of Michigan)

28/06/2019, 11:00

1.6 Plasma Chemistry

Oral

Plasmas coming into contact with liquid water is the basis of a range of technological applications for environmental remediation and medicine. These technologies are enabled by complex plasma-driven chemical and physical processes at the plasma-liquid interface. At the interface, however, plasmas can also drive Marangoni flow in the bulk liquid. This effect can thus circulate reactive species...

862. The influence of microwave pulse length and repetition rate on laminar burning velocity in lean methane-air flames

Dr Tomas Hurtig (Division of Defence & Security, Systems and Technology, FOI – Swedish Defence Research Agency)

28/06/2019, 11:15

1.6 Plasma Chemistry

Invited

An experimental setup and data analysis method for determination of the laminar burning velocity of flames exposed to pulsed microwaves is presented, and used to investigate lean methane-air flames. The results show an increase in laminar burning velocity with increasing duration of the microwave pulses, at constant electric field strength and for increasing field strength with the same pulse...

1101. Species Dynamics in Ar/H Plasma Supporting Actinometry Diagnostics Correlation Experiments

Robert Terry (Independent Research Professional, LLC)

28/06/2019, 11:45

1.6 Plasma Chemistry

Either

This analysis doesn't seek to create the most complex and definitive Ar/Hydrogen chemistry and radiation model, but rather to gain enough insight from existing literature to support an easily manageable chemistry set, within a more complex transport code, assessing the plasma species dynamics and radiation rates required to infer line intensities for experimental actinometry.

No matter what...