PDF Publication Title:
Text from PDF Page: 200
188 Chapter 4 7. A xenon ion thruster discharge chamber produces a 5 1017 m–3 plasma 20 cm in diameter with an electron temperature of 5.5 eV. What is the beam current and average current density if the screen grid transparency is 80%, and what flatness parameter is required to maintain the peak current density under 10 mA/cm2? 8. A xenon ion thruster has a grid diameter of 20 cm with a transparency of 75%, an electron temperature of 3 eV in a 30-cm-diameter, 30-cm-long cylindrical discharge chamber with an ion confinement factor of 0.1. What does the cusp anode area have to be to maintain the plasma potential at the sheath edge at 6 V? You can assume that the discharge current is 10 times the beam current and neglect the back wall loss area and primary electron effects. Assuming the ion temperature is 0.1 eV and that there are 3 magnetic rings around the cylindrical chamber, what is the magnetic field at the wall required to produce this cusp anode area? 9. An rf xenon ion thruster has a grid diameter of 10 cm, a grid transparency of 70%, and a cylindrical discharge chamber with a diameter and length of 10 cm. Assuming an electron temperature of 4 eV, an ion confinement factor of 0.5, and a neutral density of 6 1018 m–3, what is the plasma potential and discharge loss? If the cylindrical discharge chamber is made into a cone 10 cm long from the grid diameter, how do the plasma potential and discharge loss change? 10. A microwave ion thruster produces 2 A from an 80% transparent grid using a 4-GHz microwave source. If the thruster is running at 90% of cutoff with a flatness parameter of 0.6, what must the diameter of the grid be to produce this beam current?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 (Standard Web Page)