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FUSION PROPULSION - anoop80686 - 10-04-2017 FUSION PROPULSION
Presented by:- EBIN VALICKAL Department Of Mechanical Engineering College Of Engineering, Trivandrum 2007-11 batch [attachment=7457] WHAT IS FUSION? Fusion occurs when two nuclei combine to from a new nucleus Fusion fuels are mainly Deuterium and Tritium Deuterium contains one proton and one neutron Tritium has one proton and two neutrons Deuterium-Tritium Fusion Plasma Plasma is made up of atoms it is also called ionized gas CONDITIONS SHOULD BE CREATED FOR THE FUSION TO OCCUR The two nuclei should be bring in contact High temperature About 100 million C Created by using Laser beams, microwaves High pressure Pressure squeezes the hydrogen atoms together Using intense magnetic fields, powerful lasers or ion beams MANETIC CONFINEMENT FUSION Electricity & neutral particle beams are used to heat the stream of gas Plasma is squeezed by the super conducting magnets Optimum for power generation MANETIC CONFINEMENT FUSION PROPULSION Reactions takes place in a magnetic bottle Products exhausted through a magnetic nozzle Two primary problems Prohibitively large weight Difficult to create a magnetic bottle with magnetic rocket exhaust nozzle Inertial Confinement Fusion (ICF) Uses laser beam or ion beams to heat & squeeze the deuterium and tritium pellet Pellet is bombarded on all sides by strong pulses from lasers or particle accelerators Inertia of fuel holds it together long enough for most of it to undergo fusion Beams explosively detonates the outer layer Sending a shock wave in to the center which is powerful enough for achieving high enough density at center to cause some fusion reactions This heats surrounding fuel creating a chain reaction that burns the fuel load MUON-CATALYSED FUSION PROPULSION Eliminates electric repulsion force & fusion take place Fusion energy ejects the muon& goes of to another nucleus thus catalyses many reactions till it decays Muon has to be manufactured on the space craft CONCLUSION This concept increases the mission flexibility, enabling new science missions and greater flexibility in reaching & exploring distant planets It reduces the time for the journey in space mission by 50% compared to the chemical rocket |