scholarly journals High-Specific Impulse Hall Thrusters, Part 2: Efficiency Analysis

2006 ◽  
Vol 22 (4) ◽  
pp. 732-740 ◽  
Author(s):  
Richard R. Hofer ◽  
Alec D. Gallimore
Keyword(s):  
Specific Impulse ◽  
Efficiency Analysis ◽  
Hall Thrusters

scholarly journals Numerical Investigations of Electromagnetic Oscillations and Turbulences in Hall Thrusters Using Two Fluid Approach

2021 ◽  
Author(s):  
Sukhmander Singh ◽  
Bhavna Vidhani ◽  
Ashish Tyagi
Keyword(s):  
Magnetic Field ◽  
Electric Propulsion ◽  
Specific Impulse ◽  
Magnetized Plasma ◽  
Hall Thruster ◽  
Electron Drift ◽  
Hall Thrusters ◽  
Numerical Investigations ◽  
Electromagnetic Oscillations ◽  
Two Fluid

The first part of the contributed chapter discuss the overview of electric propulsion technology and its requirement in different space missions. The technical terms specific impulse and thrust are explained with their relation to exhaust velocity. The shortcoming of the Hall thrusters and its erosion problems of the channel walls are also conveyed. The second part of the chapter discuss the various waves and electromagnetic instabilities propagating in a Hall thruster magnetized plasma. The dispersion relation for the azimuthal growing waves is derived analytically with the help of magnetohydrodynamics theory. It is depicted that the growth rate of the instability increases with magnetic field, electron drift velocity and collisional frequency, whereas it is decreases with the initial drift of the ions.

scholarly journals High-Specific Impulse Hall Thrusters, Part 1: Influence of Current Density and Magnetic Field

2006 ◽  
Vol 22 (4) ◽  
pp. 721-731 ◽  
Author(s):  
Richard R. Hofer ◽  
Robert S. Jankovsky ◽  
Alec D. Gallimore
Keyword(s):  
Magnetic Field ◽  
Current Density ◽  
Specific Impulse ◽  
Hall Thrusters

scholarly journals Particle Simulation of High Specific Impulse Operation of Low-Erosion Magnetic Layer Type Hall Thrusters

2016 ◽  
Vol 14 (ists30) ◽  
pp. Pb_165-Pb_171 ◽  
Author(s):  
Shinatora CHO ◽  
Hiroki WATANABE ◽  
Kenichi KUBOTA ◽  
Shigeyasu IIHARA ◽  
Kenji FUCHIGAMI ◽  
...  
Keyword(s):  
Specific Impulse ◽  
Magnetic Layer ◽  
Particle Simulation ◽  
Hall Thrusters

Recent trends in Component Based software development and Efficiency analysis of Semantic search based component retrieval Technique

2018 ◽  
pp. 105-113 ◽  
Author(s):  
Vishnu Sharma ◽  
Vijay Singh Rathore
Keyword(s):  
Software Development ◽  
Efficiency Analysis ◽  
Software Components ◽  
High Demand ◽  
Component Retrieval ◽  
Software Developer ◽  
Software Libraries ◽  
Retrieval Technique ◽  
Executable File ◽  
Recent Trends

In these days most of the software development uses preexisting software components. This approach provides plenty of benefits over the traditional development. Most of the software industries uses their own domain based software libraries where components resides in the form of modules, codes, executable file, documentations, test plans which may be used as it is or with minor changes. Due to shrinking time and high demand of software development it is necessary to use pre tested software components to ensure high functionality in software developed. Software components can be used very easily and without having the worries of errors and bugs because these are developed under expert supervision and well tested. What we have to do is just embed these components in our project. In this paper a survey got conducted over 112 software developer,testers and freelancers. In survey several issues in CBSD were identified. An efficient repository along with a component search engine is developed. All the component retrieval techniques were evaluated and compared with precise and recall method.

THE ENERGY EFFICIENCY ANALYSIS OF DATA CENTER COOLING BASED ON SEPARATED HEAT PIPE

2018 ◽  
Author(s):  
Tao Wang ◽  
Yuhua Li ◽  
Huan Liu ◽  
Lei Zhang ◽  
Yuyan Jiang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Heat Pipe ◽  
Data Center ◽  
Efficiency Analysis ◽  
Data Center Cooling ◽  
Energy Efficiency Analysis
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