PDF Publication Title:
Text from PDF Page: 144
5.9. RESULTS & DISCUSSION μm and d1 is 300 μm. The density of electrons decreases after the maximum density is reached beyond d0 and d1 , steeply, indicating formation of sheath regions; sheath region also corresponds to maximum in electron energy 7 eV. The reasons for the difference between positive and negative half-cycles are discussed in chapter 4. One of the major differences is higher electron density, that persists longer, is produced during negative half cycle. The increase in the electron density during negative half cycle is also reflec- ted in current (figure 5.7a). Spatio-temporal evolution of reduced electric field plotted in the figure 5.7d follows the mean electron energy as they are strongly related to each other. At the instant when the voltage is switched off (t0), the filament has bridged the gap reaching the ground electrode. As a consequence, the maximum electron density has been produced at d0. After switching off, the electron density only slowly decays at a very slow with a maximum of up to 1011 cm−3. It has to be noted that electron densities exceeding 109 cm−3 have been measured up to 100 μ s fter termination of streamer even in strongly electro-negative gases like synthetic air [245]. The high electron density does not however translate into chemistry or vibrational excitation as the electron energy is not suitable. Immediately after t0, the mean electron energy decreases at a faster rate when compared with the periodic state and reaches very low values. Also, when the voltage is switched off the gap-voltage decreases to zero very fast reducing the power consumption to zero as a consequence. 5.9.2 Spatio-temporal evolution of CO2(v31) and CO2(v32) The spatio-temporal evolution of densities of CO2(v31) and CO2(v32) are plotted in fig- ures 5.8a and 5.8b respectively so as to study the relation between discharge character- istics and densities of these vibrational levels. From the figure 5.8a, it can be seen that CO2(v31) density variation is periodic with voltage signal and with maximum produc- tion at d0 and d1 for positive and negative half cycles respectively. Following the trends of electron density, the CO2(v31) at d1 is higher than the density at d0. However, at t0 the rate of change of CO2(v31) decreases compared with the periodic state and hence its population declines at a slower rate (this difference between periodic state and off-phase is seen as a bright red spot at d0 in the figure 5.8a). At times greater than t0, the density of CO2(v31) declines through out the gas gap uniformly. In contrast with CO2(v31), dens- ity of CO2(v32) increases at an uniform rate without showing any periodic nature. Like CO2(v31), its density is also higher at d1 than at d0. After t0, the density of CO2(v32) remains at a constant level, only spreading in the gap due to diffusion. It has to be noted 135PDF Image | Understanding CO2 containing non-equilibrium plasmas
PDF Search Title:
Understanding CO2 containing non-equilibrium plasmasOriginal File Name Searched:
20160125_CO_Ponduri.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)