Practical Guige to Free Energy Devices

CHAK CHANG
Patent Application US 2006/060464 23rd March 2006 Inventor: Chak Chang
A METHOD AND APPARATUS FOR GENERATING PLASMA IN A FLUID
This patent application is for a most unusual system which produces a plasma discharge at room temperature and
ambient pressure, using voltages as low as 350 volts and currents as low as 50 milliamps and among other
things, it is capable of promoting the production of pharmaceuticals, production of nano-particles, the extraction of
metals from liquids, low temperature sterilisation of liquid food, use in paper industries to decontaminate the
effluent discharge, fragmentation or de-lignifications of cellulose; the removal of odour from discharging liquid in
the food industries, and the treatment of fluid effluent. It is also a method of producing hydrogen gas at low cost.
ABSTRACT
A method and apparatus for generating plasma in a fluid. The fluid 3 is placed in a bath 2 having a pair of spaced
electrodes 4, 6 forming a cathode and an anode. A stream of bubbles is introduced or generated within the fluid
adjacent to the cathode. A potential difference is applied across the cathode and anode such that a glow
discharge is formed in the bubble region and a plasma of ionised gas molecules is formed within the bubbles. The
plasma may then be used in electrolysis, gas production, effluent treatment or sterilisation, mineral extraction,
production of nanoparticles or material enhancement. The method can be carried out at atmospheric pressure
and room temperature. The electrodes may carry means to trap the bubbles in close proximity. Partitions may be
present between the electrodes.
DESCRIPTION
The invention relates to the provision and utilisation of a plasma formed in a fluid, and in particular to the provision
and utility of a plasma formed within bubbles contained in an aqueous medium.
BACKGROUND
Plasma is an electrically conductive gas containing highly reactive particles such as radicals, atoms, plasma
electrons, ions and the like. For example plasma may be formed when atoms of a gas are excited to high energy
levels whereby the gas atoms lose hold of some of their electrons and become ionised to produce plasma.
Thermal plasma, including plasma arc is known. However plasma arc is associated with high power
consumption, the rapid erosion of electrodes when used in electrolysis, the need for catalysts and high-energy
loss due to the associated high temperatures.
Clearly therefore, it would be advantageous if a non-thermal plasma could be devised. This would enable the
plasma to be used for a number of applications for which plasma is useful without the disadvantages associated
with using a high temperature plasma arc.
SUMMARY OF THE INVENTION
According to a first aspect of the present invention, there is provided a method for generating plasma in a fluid,
comprising the steps of providing a fluid, introducing and/or generating one or more gas chambers or bubbles
within the fluid, whereby the chambers or bubbles are contained by the fluid, and treating the fluid such that a
plasma is generated within the chambers or bubbles.
The fluid may be a liquid that is contained within liquid containment means.
The applicant has discovered that a plasma can be generated relatively easily within bubbles within an aqueous
medium. This plasma causes dissociation of molecules and/or atoms which can then be treated and/or reacted to
obtain beneficial reaction products and/or molecules and/or atoms.
The liquid container may be open to the atmosphere and the process may therefore be carried out at substantially
atmospheric pressure. Alternatively the container may be placed inside a sealed reaction chamber, e.g. under
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