3. The Challenges In The Field Of Space
Mission
Chemical thrusters such as fuels can’t give much power for long mission
it is unreliable , that it need frequent refueling
Solar energy is abundantly available in space , but can’t utilize it
completely
Fast moving shuttles are needed
A sustainable energy conversion system have to find out
Chemical
thruster
Solar
energy
Asteroids
4. what are the present objective?
Replacing
chemical
thruster
Self
charging
shuttle
study
about
other
nebula
Mission
to mars
High
power
engine
5. Can provide higher spacecraft top speeds than any rocket
currently available
Efficient use of fuel and electrical power enable modern space
craft to travel more
Why an ion engine ?
Cheaper and faster than any other propulsion technology
6. What is an ion ?
Ion is simply an atom or molecule that is electrically charged
Ionization is the process of charging an atom
A gas is considered as ionized when some or all atoms are
converted to ion
plasma is known as the fourth state and in that state gas is neutral
It has the some properties of gas ,but affected with magnetic and
electrical properties
7. How does it work ?
The mechanism uses charged particles to propel
aircraft forward.
Operate relies on charge to mass ratio of
electrons.
A cathode filament in a chamber with inert gases.
The gases are charged by filament
8. Accelerated by the grid downstream
electrons are collected through a tube
the second grid accelerates the ion to 35km/s
In operation typically consume 1-7kw pf power ,have
exhaust velocities around 20-50 km/s
13. Why xenon is used?
Xenon is an inert gas and thus corrosion can be avoided
First Ionization energy of xenon is 125eV/ato
No risk of explosions with high strorage density
Over the course of the 5.5+ year test,the engine consumed approximately
870 kilograms of xenon propellant.
