Thursday 15 October 2015

FEATHER IN THE CAP - AWARD WON BY S VIJAY PRABU XII





WATER ENGINE


Case study:-
        The idea of this project first started while studying 8th std
        We prepared diagram, documentation and we keep on developing the idea.
    Then we got a chance of implementing the idea now.
    We first used electrolytic tank with the two tanks joined in a small joint and two electrodes
     But because of long distance between 2 electrodes the output was low.
     We used a lot of electrodes like zinc, carbon, copper, iron.
     We used a lot of conduction salts with water like NaCl, KCl, Na2CO3, NaHCo3, AgCl, MgSO4 and alkaline like NaOH and acids like HCl, H2SO4.
     We found the best conduction medium to be NaOH.
     Then we designed a tank with 2 electrode and we gave high voltage and high current.
     The output was low.
     Then we found that the max voltage to be given is 12 V.
     So we designed a electrode cell with 4 electrode pairs in a glass jar
     Good amount of hydrogen evolved.
     But it was not enough for an engine.
     There was also some leakage of gas We encountered some explosions.
     We attached a small pump to suck gas. 
     There was leakage in the pump.
     Then we attached a funnel to extract hydrogen. then we placed tank  in lower    position with respect to engine in connected with a thick pipe
 

At present, engine runs by hydrogen assisted by the petrol.  In near future we will be making an engine that completely runs on water.
This is our latest blue print:-


WATER ELECTROLYSIS:-
Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen gas (H2) due to an electric current being passed through the water.
This technique can be used to make hydrogen fuel (hydrogen gas) and breathable oxygen; though currently most industrial methods make hydrogen fuel from natural gas instead.
CHEMISTRY:-
     An electrical power source is connected to two electrodes, or two plates which are placed in the water.  Hydrogen will appear at the cathode and oxygen will appear at the anode.
     Electrolysis of pure water requires excess energy so the efficiency of electrolysis can be increased by addition of electrolyte such as a salt, an acid or a base.
In pure water at the negatively charged cathode, a reduction reaction takes place, with electrons (e­-) from the cathode being given to hydrogen cations to form hydrogen gas (the half reaction balanced with acid).
Reduction at cathode:  2 H+(aq) + 2e → H2(g)
At the positively charged anode, an oxidation reaction occurs, generation oxygen gas and giving electrons to the anode to complete the circuit.
Oxidation at anode:  2 H2O(l) → O2(g) + 4 H+(aq) + 4e
Overall reaction:  2 H2O(l) → 2 H2(g) + O2(g)
The number of hydrogen molecules produced is thus twice the number of oxygen molecules.  Assuming equal temperature and pressure for both gases, the produced hydrogen gas has therefore twice the volume of the produced oxygen gas.  The number of electrons pushed through the water is twice the number o generated hydrogen molecules and four times the number of generated oxygen molecules.
ELECTORDES:-
Material:-    Steel(8 pairs)             
Voltage:-     12V

Current:-      35A


ELECTROLYTE SOLUTION:-
Water + NaOH
TWO STROKE INTERNAL COMBUSTION:-
     A two stroke or two cycle engine is a type of internal combustion engine which completes a power cycle with two strokes of the piston during only one crankshaft revolution.
     Two stroke engine was invented by British engineer Joseph Day in 1889.
WORKING:-
     Two stroke engines do not have valves, which simplifies their construction and lowers their weight.
     Two stroke engines fire once every revolution, while four stroke engines fire once every other revolution.  This gives two stroke engines a significant power boost.
     Two stroke engines can work in any orientation.  A standard four stroke engine may have problems with oil flow unless it is upright and solving this problem can add complexity to the engine.
     These advantages make two stroke engines lighter, simpler and less expensive to manufacture.  Two stroke engines also have the potential to pack about twice the power into the same space because there are twice as many power strokes per revolution.  The combination of light weight and twice the power gives two stroke engines a great power to weight ratio compared to many four stroke engine designs.
WATER ENGINE WORKING:-
·       From the battery, current goes to the electrolytic cell which contains water and NaOH.
·       Current electrolyses water to liberate hydrogen and oxygen.
·       Collected hydrogen and oxygen and goes to the fuel in take in the engine.
·       It mixes with air inside the carburetor and burns inside the engine.
·       Dynamo in the engine once again recharge the battery.
ENGINE:-
·       Capacity-50cc
·       3.5bhp
·       5bhp

   EARLIER WATER ENGINE CLAIMS

Garrett electrolytic carburetor

Charles H. Garrett allegedly demonstrated a water-fuelled car "for several minutes", which was reported on September 8, 1935, in The Dallas Morning News. The car generated hydrogen by electrolysis as can be seen by examining Garrett's patent, issued that same year. This patent includes drawings which show a carburetor similar to an ordinary float-type carburetor but with electrolysis plates in the lower portion, and where the float is used to maintain the level of the water. Garrett's patent fails to identify a new source of energy.
Stanley Meyer's water fuel cell

At least as far back as 1980, Stanley Meyer claimed that he had built a dune buggy that ran on water, although he gave inconsistent explanations as to its mode of operation. In some cases, he claimed that he had replaced the spark plugs with a "water splitter", while in other cases it was claimed to rely on a "fuel cell" that split the water into hydrogen and oxygen. The "fuel cell", which he claimed was subjected to an electrical resonance, would split the water mist into hydrogen and oxygen gas, which would then be combusted back into water vapour in a conventional internal combustion engine to produce net energy. Meyer's claims were never independently verified, and in an Ohio court in 1996 he was found guilty of "gross and egregious fraud". He died of an aneurysm in 1998, although conspiracy theories claim that he was poisoned.
Dennis Klein
In 2002, the firm Hydrogen Technology Applications patented an electrolyser design and trademarked the term "Aquygen" to refer to the hydrogen oxygen gas mixture produced by the device. Originally developed as an alternative to oxyacetylene welding, the company claimed to be able to run a vehicle exclusively on water, via the production of "Aquygen", and invoked an unproven state of matter called "magnegases" and a discredited theory about magnecules to explain their results. Company founder Dennis Klein claimed to be in negotiations with a major US auto manufacturer and that the US government wanted to produce Hummers that used his technology.
At present, the company no longer claims it can run a car exclusively on water, and is instead marketing "Aquygen" production as a technique to increase fuel efficiency, thus making it Hydrogen fuel enhancement rather than a water-fuelled car.
Genesis World Energy (GWE)
Also in 2002, Genesis World Energy announced a market ready device which would extract energy from water by separating the hydrogen and oxygen and then recombining them. In 2003, the company announced that this technology had been adapted to power automobiles. The company collected over $2.5 million from investors, but none of their devices were ever brought to market. In 2006, Patrick Kelly, the owner of Genesis World Energy was sentenced in New Jersey to five years in prison for theft and ordered to pay $400,000 in restitution.
Genepax Water Energy System
In June 2008, Japanese company Genepax unveiled a car which it claims runs on only water and air, and many news outlets dubbed the vehicle a "water-fuel car". The company says it "cannot [reveal] the core part of this invention,” yet, but it has disclosed that the system uses an onboard energy generator (a "membrane electrode assembly") to extract the hydrogen using a "mechanism which is similar to the method in which hydrogen is produced by a reaction of metal hydride and water". The hydrogen is then used to generate energy to run the car. This has led to speculation that the metal hydride is consumed in the process and is the ultimate source of the car's energy, making the car a hydride-fuelled "hydrogen on demand" vehicle, rather than water-fuelled as claimed. On the company's website the energy source is explained only with the words "Chemical reaction". The science and technology magazine Popular Mechanics has described Genepax's claims as "Rubbish." The vehicle that Genepax demonstrated to the press in 2008 was a REVAi electric car, manufactured in India and sold in the UK as the G-Wiz.
In early 2009, Genepax announced they were closing their website, citing large development costs.
Thushara Priyamal Edirisinghe
Also in 2008, Sri Lankan news sources reported that Thushara Priyamal Edirisinghe claimed to drive a water-fuelled car about 300 kilometers on three litres of water.Like other alleged water-fuelled cars described above, energy for the car is supposedly produced by splitting water into hydrogen and oxygen using electrolysis, and then burning the gases in the engine. Thushara showed the technology to Prime Minister Ratnasiri Wickramanayaka, who "extended the Government’s full support to his efforts to introduce the water-powered car to the Sri Lankan market."
Thushara was arrested a few months later on suspicion of investment fraud.
Daniel Dingel
Daniel Dingel, a Filipino inventor, has been claiming since 1969 to have developed technology allowing water to be used as fuel. In 2000, Dingel entered into a business partnership with Formosa Plastics Group to further develop the technology. In 2008, Formosa Plastics successfully sued Dingel for fraud, with the 82-year-old Dingel being sentenced to 20 years imprisonment.
Dr Ghulam Sarwar
In December 2011 a Pakistani doctor, Ghulam Sarwar claimed that he had invented a car that only runs on water. At the time the invented car was claimed to use 60% water and 40% Diesel or fuel, but that the inventor was working hard to make it run on only water, probably by end of June 2012. It was further claimed that the car "emits only oxygen Rather than the usual carbon".
Agha Waqar Ahmad
Agha Waqar Ahmad, a Pakistani, claimed in July 2012 to have invented water-fuelled car by installing a "water kit" for all kind of automobiles. The kit consists of a cylindrical jar, which holds the water, a bubbler, and a pipe leading to the engine. He claims that the kit uses electrolysis to convert water into "HHO", which is then used as fuel. The kit requires use of distilled water to work. Ahmed claims that he has been able to achieve much higher amounts of oxyhydrogen compared to any other inventor because of "undisclosed calculations". He has applied for a patent in Pakistan. Some Pakistani scientists alleged that Agha's invention is nothing but a fraud as it violates the laws of thermodynamics.

ADVANTAGES:-
·       They are non polluting.
·       Water is a renewable resource.
·       Hydrogen burns forming water vapour inside the engine as the bi-product so no water is wasted.
·       It does not emit any green house gases.
DISADVANTAGES:-
·       This project obeys the second law of thermodynamics, so efficiency can never be cent percent.
·       The battery should be recharged often.
SCOPE OF IMPROVEMENT
·       Use of lithium ion batteries instead of lead acid battery.
·       New Carburetor must be designed for good flow of hydrogen.
·       Use of inert metals like platinum or iridium as electrodes.



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