PDF Publication Title:
Text from PDF Page: 146
5.9. RESULTS & DISCUSSION tion from CO2(v32) to CO2(v31) (reaction VT8). Rate-coefficient of VT7 is higher than VT6, because the energy difference between CO2(v4) and CO2(v31) is only 0.04 eV as opposed to 0.21 eV of the corresponding reactants in VT6 (please refer to tables 4.2, 4.3 and 4.4 in chapter 4). In this equation, diffusion and other processes such as dissociative electron attachment of CO2(v31) as their rates are found to be very small. Though the rate-coefficients of VT relaxation are less than 10ā15cm3sā1, the rates itself are signific- ant because of the high pressure. The relative importance of each of the terms determines the spatio-temporal evolution of CO2(v31) density and to understand this, each term of RHS of equation 5.11 to the total rate at one location namely, d0 have been plotted in figure 5.9. The electron impact excitation is the most important at this location, at the instant when filament occurs, and it is the fastest process that changes the density of CO2(v31), while all the other processes respond to change induced by it. The electron impact de- excitation of CO2(v32) is also a very important process, which shows that once signific- ant amount of CO2(v32) are created the act as source for CO2(v31) back. From figure 5.9, among loss processes, it is clear that VT relaxation to CO2(v4) has the highest rate at any given time, followed by VV transfer to CO2(v32). Between VV transfer to, and VT relaxation from CO2(v32), to the density of CO2(v31) clearly the former dominates when the plasma is on, reversing only at long times after plasma has been switched off. From these rates it can be concluded that at atmospheric pressure, and for the calcu- lated CO2(v31) densities VV transfer though significant but is not the dominating pro- cess. However, by decreasing the pressures, the VT rates can be decreased and thereby increase the importance of VV transfer. The highest rates of VV transfer are at d0 and d1, as the maximum n1 is reached at these locations, which explains the trends in figure 5.8b. At t0, all destruction processes become slow when compared with the periodic state and as a result, the variation in n1, dn1 becomes smaller. Consequently the effective dt life time of CO2(v31) increases which can be seen in figure 5.8a. If we assume that, electron kinetics are not affected by VV transfer, then for a given n1 and from figure 5.9, it can be seen that the rate coefficient of VV2 can become the dominant process only if the rate coefficient is higher than the one used for this model, or at significantly higher densities of n1. Another important inference from figures 5.8 and 5.9 is that even though rates of destruction of CO2(v31) are really high, it takes longer time-scales to reduce the density significantly. For example, the characteristic time of reaction VT7 is in the range of milliseconds. Although maximum amount of electron energy is transferred into CO2(v31) at low 137PDF 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 | RSS | AMP |