PDF Publication Title:
Text from PDF Page: 238
226 Chapter 5 Discharge Chamber Plasma Xe+ Screen Grid Grid Beamlet Accel Fig. 5-20. Ions that cause barrel erosion are generated by charge exchange upstream and within the accelerator grid aperture. Xe+ Xe+ Beamlets Accel Grid Fig. 5-21. Ions that cause pits and grooves erosion are generated between the downstream surface of the accel grid and where the beamlets overlap. Erosion of the accelerator grid by charge exchange ion sputtering was the major life-limiting mechanism observed during the ELT of the NSTAR flight spare thruster [49] for operation at the highest power TH15 level. Photographs of center holes in the grid at the beginning and the end of the 30,000-hour test are shown in Fig. 5-22 where barrel-erosion enlargement of the aperture diameters is evident. Note that the triangle patterns where the webbing intersects in the end-of-test picture are locations where the erosion has completely penetrated the grid. The scanning electron microscope (SEM) photograph shown in Fig. 5-23 illustrates the deep erosion of the pits-and-grooves pattern and shows that full penetration of the grid had occurred when the test was stopped. Continued operation would have eventually resulted in structural failure of the grid, but this was not considered imminent at the end of the test.PDF Image | Fundamentals of Electric Propulsion: Ion and Hall Thrusters
PDF Search Title:
Fundamentals of Electric Propulsion: Ion and Hall ThrustersOriginal File Name Searched:
Goebel__cmprsd_opt.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 |