A comprehensive model of ozone generation in dielectric barrier discharges is presented. The model combines the physical processes in the micro-discharges with the chemistry of ozone formation. It is based on an extensive reaction scheme including the major electronic and ionic processes. The importance of excited atomic and molecular states is demonstrated. Theoretical limits are given for the ozone production efficiency and the attainable ozone concentration. The most important parameters influencing the performance of ozonisers are identified. All theoretical predictions are compared to measured data.

https://iopscience.iop.org/article/10.1088/0022-3727/20/11/010/pdf

Ozone synthesis from oxygen in dielectric barrier discharges

https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1010&context=coolingpubs

Investigation of heat transfer in rectangular microchannels

Catalytic combustion of volatile organic compounds.

Flow and convective heat transfer characteristics of water-based Al2O3 nanofluids in fully developed laminar flow regime

This letter quantifies both experimentally and theoretically the diffusion of low-molecular-weight species across the interface between two aqueous solutions in pressure-driven laminar flow in microchannels at high Peclet numbers. Confocal fluorescent microscopy was used to visualize a fluorescent product formed by reaction between chemical species carried separately by the two solutions. At steady state, the width of the reaction–diffusion zone at the interface adjacent to the wall of the channel and transverse to the direction of flow scales as the one-third power of both the axial distance down the channel (from the point where the two streams join) and the average velocity of the flow, instead of the more familiar one-half power scaling which was measured in the middle of the channel. A quantitative description of reaction–diffusion processes near the walls of the channel, such as described in this letter, is required for the rational use of laminar flows for performing spatially resolved surface chemistry and biology inside microchannels and for understanding three-dimensional features of mass transport in shearing flows near surfaces.

/pdf/experimental-and-theoretical-scaling-laws-for-transverse-17xyq3x5ox.pdf

Frank M. White

Papers

Laminar Flow Forced Convection in Ducts