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<Objective>

 Nuclear fusion has long been called energy of dreams but is still unfeasible for various technical reasons.  We propose a nuclear fusion generator based on a novel principle that is more compact and can be more easily constructed than the other nuclear fusion generators under study.  We will reward anyone who can prove whether our generator can work or not with 100 million yen. Also, we are looking for anyone who can conduct nuclear fusion test for this generator by computer simulation.

<Principle>

 The critical plasma condition for nuclear fusion of deuterium and tritium atoms requires that the plasma temperature is 100 million C or higher, the plasma density is 100 trillion particles/cm, and the plasma is confined for 1 second or longer.
 Oxygen/Hydrogen gas is changed to plasma condition after combustion. This gas is recognized as ideal and density of the gas is increased according to compressed atmosphere, because Pressure X Volume equals a constant according to Boyle-Charles law.
 Density of hydrogen molecules is 0.00009g/cmat 1 atmosphere. So, density of hydrogen plasma would be 0.00009g X compressed atmosphere.
Number of hydrogen molecules is 6X10÷2, because hydrogen molecules in 1 mole weighs 2g and Avogadro’s number is 6 x 10. One hydrogen molecule produces 2 plasma particle. Numbers density of 0.09g plasma is 2X0.09X6X 10÷2=5.4X10=5.4X10X trillion. Even if the number of hydrogen molecules actually involved with the nuclear fusion reaction is very small, the condition concerning density is reasonably satisfied.
Combustion temperature of Oxygen/Hydrogen gas is 2,000 C〜3,000 C at normal atmosphere and changed into plasma condition. And the temperature goes higher by compression of high pressure.
And plasma particle is heated by irradiation of high energy electron beam to this flame by the accelerator, which satisfy critical plasma condition and temperature condition by sufficient heating.
  In addition, this combustion can continuously occur.  That is to say, this generator satisfies all of the critical plasma condition required for nuclear fusion reaction and the spontaneous ignition condition and can achieve nuclear fusion reaction.  (Fig. 2)

<Summary of Generator (Fig. 1)>

 Deuterium oxide and tritium oxide (referred to as heavy water, hereinafter) are fed into the first container (51) and sealed under the pressure with the first high-pressure pump (22) at 1000atm. The container houses a water electrolysis cell incorporating a solid polymer electrolyte membrane (24a).  The container includes a tank (28) for temporarily storing heavy hydrogen gas produced on a cathode (hydrogen electrode) (26) of the water electrolysis cell, and the tank is separated from the heavy water by a membrane structure.  The container includes another tank (an upper part of a partition 27) for temporarily storing the oxygen gas produced above an anode (oxygen electrode) (25).    An oxygen/hydrogen gas containing a slightly higher proportion of heavy hydrogen gas is injected into a combustion space in the second high-pressure container (11). Heat plasma produced by combustion of oxygen/hydrogen gas is irradiated by high-energy electron beam gun near from jet opening and plasma temperature goes up.
 The oxygen/hydrogen gas changes back to heavy water by combustion.  The second high-pressure container is also filled with heavy water, and the heavy water is heated by the combustion of the oxygen/hydrogen gas and the nuclear fusion reaction of the heavy hydrogen.  The hot heavy water is fed to a heat exchanger (31) above through a high-pressure pipe, cooled and then fed back to the second high-pressure container (11).
  Excessive oxygen gas and heavy hydrogen gas and helium gas produced in this process are discharged and collected through an exhaust valve at the top of the heat exchanger.  The amount of heavy water decreases as a result of the nuclear fusion of the heavy hydrogen gas, and supplement heavy water is fed into the high-pressure container by a first high-pressure pump.  The high-pressure container and the high-pressure pipe preferably have an elongated structure so that the thickness of the pressure-proof wall can be minimized.

Fig. 1 Nuclear fusion generator
<Operation of Generator>

 According to Faraday's law of electrolysis, the amount of heavy hydrogen gas and oxygen gas produced by electrolysis of heavy water does not depend on the pressure.  In the first container (51) at high water pressure, heavy hydrogen gas is stored at the same high pressure in a space separated by a membrane from the surrounding heavy water, and oxygen gas is collected in an upper part of the tank.  Electrolysis of 1 mol of heavy water requires an energy of 233 kJ, and 2 grams of heavy hydrogen gas can be produced from 18 cc of water and used for nuclear fusion reaction.  The critical pressure of hydrogen gas is 1.3 MPa, and the critical temperature of hydrogen gas is 33 K, and the critical pressure of oxygen gas is 5 MPa, and the critical temperature of oxygen gas is 154.6 K.  Accordingly, in the generator, these gases exist in the form of a supercritical fluid, which has both liquid and gas properties.  These gases are compressed by the boost pumps (52a, 52b) and temporarily stored in the high-pressure tanks (53a, 53b), and a mixture of these gases is then injected into the high-pressure container (11).  When the mixture gas is ignited by an electric spark, for example, combustion occurs, and the gas changes to a high-temperature plasma.  After the combustion reaction (Table 1) starts under the pressure of 100 thousand atmospheres in the high-pressure container, the compression coefficient of the supercritical fluid decreases because of the high temperature, and therefore, the supercritical fluid is compressed under the high pressure of the surrounding heavy water (Fig. 3).  As a result, the energy density increases, and the temperature of 200 to 300 million C can be attained.  Even at 50 thousand atmospheres, a temperature of 100 million C or higher can be attained.
 This combustion is a reaction that produces two water molecules from two hydrogen molecules and one oxygen molecule, in which the number of molecules decreases, and this reaction is accelerated under the ultra-high pressure.  If the flame (oxygen/hydrogen gas) contains 1 percent of excessive heavy hydrogen gas for nuclear fusion, for example, the plasma density is 5.4X10X 100 trillion particles/cm, and the D-T reaction can be caused by collision of atomic nuclei.  (Any excessive oxygen gas that is not involved in these reactions is discharged to the high-pressure container through an oxygen discharge pipe (54).
Also, Heat plasma produced by combustion of oxygen/hydrogen gas is irradiated to the center of heat flame by high-energy electron beam gun near from jet opening and temperature goes up to satisfactory temperature for self-ignition of D-T reaction. This heat plasma is cooled by surrounding water (heavy water). However, this reaction continues by supplying heat plasma one after another. So, once this reaction occurs, which satisfy the self -ignition condition by heating even though output of electron beam is not so big.
  Some of heavy water goes back to the first container from high pressure container. By the nuclear reaction heat, the heavy water around the flame  is heated and pushed into heat-exchanger by jet pressure toward exit of the second high pressure container and goes back to the high pressure container and circulates. Temperature of this heavy water is adjustable by changing amount of oxygen/hydrogen gas combusted and content percentage of tritium.

  In the combustion space, neutrons are produced.  If the wall of the second high-pressure container contains lithium, tritium, which is rare, can be supplementarily obtained by the lithium reacting with the neutron rays to produce tritium.  The tritium gas is collected along with the oxygen gas through the discharge valve at the top and changes to tritium oxide in the combustion, and the tritium oxide is used again for nuclear fusion reaction.
 The hot heavy water heats an external fluid in the heat exchanger, and the heated fluid activates a turbine to generate electricity.  Part of the electric power is used for electrolysis of heavy water.  However, the electric power generated is much higher than the electric power required for the electrolysis: the amount of energy produced by nuclear fusion reaction of 1 gram of hydrogen is comparable to the amount of energy derived from 8 tons of petroleum, and this device would be a powerful generator.

Fig.2 Lawson veiw

Fig.3  Compression coefficient

Fig.4  Phase diagram of water Table 1  Combustion of hydrogen
<Electricity Price Competitiveness>

 According to the conventional studies, even if the nuclear fusion generation were realized, the device manufacturing cost would be high, and the electricity price would be expected to be approximately twice as high as that of the nuclear electric power generation.  For this reason, despite the high safety, the nuclear fusion would be still years in the making.  However, this nuclear fusion generator has a simple structure and does not require high manufacturing cost
 Ref:  http://gigazine.net/news/20171023 aist beam/

 In conventional type of magnetic shut-up method, incident angle of energy
particle for heating is effected by magnetic field. So particle has to be electrically neutral temporaliry. But in this reactor, high-energy electron beam of lower cost can be used because it does not use magnetic field.
 Also, this reactor achieves high probability of absorption for energy movement and achieves efficient heating because the flame, where nuclear fusion occurs, is compressed and small in volume. And electron beam going through the flame plasma is quickly slowed down by water (heavy water)
and can be conditioned as beam would not reach oncoming wall as anode.
This reactor is further safe than conventional type, because nuclear fusion reaction is conducted in water and high -speed neutron is covered by water.




  Patent        : Japanese registration No.3204090



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ADDRESS
 Makoto Yasukagawa, Director of Morito Senai Hospital
 8-13 Hitokita-nishi, Moniwa, Taihaku Ward, Sendai City, Miyagi Prefecture
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 +81-(0)22-281-0033
FAX
 +81-(0)22-281-0585
E-MAIL  rijityou@midorijuji.or.jp

 

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Renewable Energy Patents for Sale Makoto Yasukagawa.
8-13 Hitokita-nishi, Moniwa, Taihaku Ward, Sendai City, Miyagi Prefecture,〒982-0263,JAPAN
 TEL:+81-(0)22-281-0033 FAX:+81-(0)22-281-0585