Mhd propulsion thruster (2)

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  • FLIGHT SYSTEM FORE SPACE PROPULTION.







    Electromagnetic thrust redirect fore space. The basic idea of redirecting lift or force. By setting the thrust upwards towards underside of the design. Redirecting the flow of air in a bow. That has a 90 degree turn redirect upwards. The thrust eminating from a Brown Biefeld or other high voltage. To jet the air by force. The thrusters situated from the center of the machine. Thrusting outwards to the bow that leads the thrust upwards and then therfore lift the machine by air flow inside an air tight compartment. Where the air after acceleration resdestributes itselfe to the intake of the thruster. The design beeing powered by a long lasting electrics suplly. Would be capable of lifting low g to space and flight to moon. The acceleration beeing slow means it effectively flies to space slowly and keeps altitude as long as force is retained. Orbit possible after 1 1/2 half hour at altitude. To the moon. Speeds of several thousend kilometers an hour after some time. Flight on moon is powered as a forward and side thrust is generated in the same way only in diffrent angel. The intire concept is a moon capable technology as long as electrics supply of high enough power is avalable. Such as possibly the ecat cold fusion system. The project would be moon capable on a percent of planned moon systems. Safety will be maximum as failiour or disaster would only be at possebilety of general flight. Reentry is slow and landing hover. A project creating this system would be an extension of the Brown Biefeld idea. Or based on a type russian electric thrust or the MHD. The system the only capable of private flight to the moon. A capabilty to lift unmanned to the moon and mars is also avalable. Including powered drone flight on moon and mars. Acceleration between 20 to 40 Seconds to speed 100 kiliometers an hour. Continued Acceleration will give upwards to half a million kiiometers an hour after 10 days. Top speed in the region of several hundred thousend kilometers an hour. Mars in 40 days. Jupiter in 9 months and pluto in two and a half year.


    Mayby invented before. Even so one of my ideas.

    Haakon Ufert

    vektorkontinum.com
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Mhd propulsion thruster (2)

  1. 1. MHD propulsion thrusterSEMINARMHD PROPULSION THRUSTER EMIL JACOB ISSAC S8 MA
  2. 2. MHD propulsion thruster ABSTRACTThe Magneto Hydro Dynamic (MHD) propulsion thruster is designed to use magnetohydrodynamic force generated by sending electric current through a magnetic field created insea water by superconducting magnets. The principle of MHD propulsion is to apply theFlemings left hand rule of electromagnetics to sea water directly .In this propulsion systemmagnetic field is created in sea water by magnets fixed on a hul1. When electric current is sent tosea water at right angles to the magnetic field, and electromagnetic force (Lorentz force) acts onsea water in the direction perpendicular to both the direction of magnetic field and that of electriccurrent. Propu1sion force is gained as a reaction force of this Lorentz force.
  3. 3. MHD propulsion thrusterINTRODUCTIONMHDMagneto hydrodynamics involves magnetic fields (magneto) and fluids (hydro) that conductelectricity and interact (dynamics).MHD technology is based on a fundamental law ofelectromagnetism: When a magnetic field and an electric current intersect in a liquid, theirrepulsive intersection propels the liquid in a direction perpendicular to both the field and thecurrent. Hannes Alfven was the first to introduce the term “MHD”.
  4. 4. MHD propulsion thruster Thruster The Magneto Hydro Dynamic (MHD) propulsion thruster is designed to use magnetohydrodynamic force generated by sending electric current through a magnetic field created insea water by superconducting magnets. The principle of MHD propulsion is to apply theFlemings left hand rule of electromagnetics to sea water directly .In this propulsion systemmagnetic field is created in sea water by magnets fixed on a hul1. When electric current is sent tosea water at right angles to the magnetic field, and electromagnetic force (Lorentz force) acts onsea water in the direction perpendicular to both the direction of magnetic field and that of electriccurrent. Propu1sion force is gained as a reaction force of this Lorentz force..The Lorentz force F (N) which is the source of thrust force T is given by the formula F = J X B dv (N) Here J is a current density vector of infinitesiml volume dv and B is a magnetic fluxdensity vector of the same. When J and B are constant over the entirevolume V (m3) of theworking part where magnetic fie1d and electric current interact, can be expressed by thefol1owing formula F = J X B X V (N)
  5. 5. MHD propulsion thruster
  6. 6. MHD propulsion thrusterThruster Systems The magnetohydrodynamic (MHD) thruster system for ships with superconductingelectromagnets has been recognized as its potentially attractive performance. Namely, it does notneed any rotating part like conventional propellers or water jet propulsions, and therefore maybe less affected by cavitations, which would be suitable propulsion means for high speed shipsand for ships as specially required silent operation. However, it is still considered that the MHDthruster system has various kind of difficult problems to be resolved before it could reachthe level of practical use. The problems may be classified into two categories, which are thetechnology specifically concerning physical phenomena of superconductors and practicaltechnique which examines possibility for designing and constructing MHD thruster systems.This investigation concerns with the later kind of problems. It is considered that MHD thrusterscan be designed
  7. 7. MHD propulsion thrusterThruster typesInner ducting type —A thruster duct is Installed in the lower hull of a SWATH, whichAccelerates seawater for generating thrust force. Two saddle type superconducting coils andelectrodes Installed in the duct generate electromagnetic fields.
  8. 8. MHD propulsion thrusterAnnular ducting type —Superconducting Magnets are composed of several segments which areinstalled surrounding the lower hull of a SWATH .The magnets and electrodes form an annularducting surrounding the lower hull ,Which generate electromagnetic fields .
  9. 9. MHD propulsion thrusterPod mount type —Two pods of thrusters are installed at both sides of the lower hull of aSWATH Type ship .Their configuration is similar to a inner Ducting type thruster.
  10. 10. MHD propulsion thrusterYAMATO 1 "YAMATO 1" is the first superconducting electro-magneto hydrodynamic (MHD)propulsion ship in the world. This ship was developed by Mitsubishi Corporation. The ship wasdesigned to be propelled by directly using magneto hydrodynamic force generated by sendingelectric current through a magnetic field created in seawater by superconducting magnets."YAMATO 1" is a ship built for the purpose of verifying possibilities of actualizingsuperconducting MHD propulsion ships. A committee named Super conducting MHDPropulsion Ship R&D Committee was organized by the Ship & Ocean Foundation and had andoperation as compared with conventional propulsion systems...
  11. 11. MHD propulsion thrusterGENERAL ARRANGEMENT OF YOMATO 1 In place of a propeller or paddle wheel, Yamato 1 uses jets of water produced by a magneto hydrodynamic (MHD) propulsion system. Inside each thruster, the seawater flows into six identical tubes, arranged in a circle like a cluster of rocket engines. The ten inch diameter tubes are individually wrapped in saddle shaped superconducting magnetic coils made of niobium titanium alloy filaments packed into wires with copper cores and shells. Liquid helium cools the coils to –452.13°F, just a few degrees above absolute zero, keeping them in a superconducting state in which they have almost no resistance to electricity. Electricity flowing through the coils generates powerful magnetic fields within the thruster tubes. When an electric current is passed between a pair of electrodes inside each tube, seawater is forcefully ejected from the tubes, jetting the [craft] forward.
  12. 12. MHD propulsion thrusterUpper View
  13. 13. MHD propulsion thrusterLongitudinal View
  14. 14. MHD propulsion thrusterPropulsion System
  15. 15. MHD propulsion thruster
  16. 16. MHD propulsion thruster Outline of propulsion systemThe propulsion systems are composed of superconducting magnets, persistent current switches,helium refrigerator units, seawater pipes electrodes, etc. and each one set of these systems isarranged on the port and starboard sides of the ship respectively. The superconducting magnetsare of a six-linked ring construction with six saddle type superconducting coils being arranged ona concentric circle in a helium vessel. The leakage of magnetic field around magnets are madesmall as much as possible by mutually combining magnetic fluxes of each coil. The seawaterpipes are blow passages of seawater through the hull and are subjected to seawater pressure andelectromagnetic force. Furthermore, the seawater pipes are required to be with a good insulatingcharacter against electricity in order to hold electrodes and bus bars for sending electric current.For these reasons, the seawater pipes are made of epoxy resin GFRP.Outline of shore support base Because the superconducting magnets are to be operated in a persistent currentmode during navigation, no facilities are required onboard for initial cooling ofthe superconducting MHD propulsion system from room temperature to the liquidhelium temperature and for magnetization and demagnetization. Therefore, thesefacilities are installed ashore and it has been planned to reduce the weight of"YAMATO 1 and to simplify the propu1sion system onboard.
  17. 17. MHD propulsion thrusterAdvantages • The thruster contains no moving part in propulsion system • It works on MHD technology • It can be used for making ships and sub marines • It is pollution free • It produces no noise ,so it is used for warfare
  18. 18. MHD propulsion thrusterConclusionThe Magneto Hydro Dynamic (MHD) propulsion thruster is designed to use magnetohydrodynamic force generated by sending electric current through a magnetic field created in seawater by superconducting magnets. When electric current is sent to sea water at right angles tothe magnetic field, and electromagnetic force (Lorentz force) acts on sea water in the directionperpendicular to both the direction of magnetic field and that of electric current. Propulsion forceis gained as a reaction force of this Lorentz force.MHD propulsion is very advantageous asit consists of no moving parts and it is pollution free. In the near future this propulsion devicewill be used over the conventional propulsion devices.

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