Hydrogen energy


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  • -1-The process seems simple, but its not entirely the case.-2-anywhere at any time, with high performance and without necessarily being connected to a power grid. -3-Used alone or in hybrid systems, fuel cells guarantee the power supply continuity in the medium and long terms, even in severe environments.
  • -2-Reactants (hydrogen and oxygen) flow into the cell, and their product (energy) flows out, while the electrolyte remains in the cell. through the reaction of some sort of fuel and an oxidant in the presence of an electrolyte.
  • -1-that was used on NASA's Space Shuttle -3-2-higher than the boiling point of iron.
  • -2-The power plants of such vehicles convert the chemical energy of hydrogen to mechanical energy.-3-Hydrogen fuel does not occur naturally on Earth and thus is not an energy source, but is an energy carrier.-4-Hydrogen is prepared without using fossil fuel inputs, vehicle propulsion would not contribute to carbon dioxide emissions
  • -3-Companies like Toyota and Ballard Power Systems are working furiously at downsizing these costs and increasing the efficiency of this budding technology, and making hydrogen fuel cells a viable competitor in the energy market.
  • Hydrogen energy

    1. 1. Abhishek Pachisia B.Tech-IT 090102801
    2. 2.  Hydrogen is the simplest element. Most plentiful element in the Universe. Colourless gas with purple glow in its plasma state. Doesn’t occur as gas naturally. Hydrogen is found in many organic compounds. Hydrogen is high in energy. Clean and Sustainable option for powering our future. Has the potential to replace harmful emitters like conventional fossil fuels.
    3. 3.  Steam Reforming. Electrolysis. Reaction of acids on metals. Hydrogenation of unsaturated substrates. Reducing equivalents in biochemical reactions. Recent research : Aluminium and Gallium Alloy.
    4. 4.  Hydrogen energy is can be produced by creating a reaction between hydrogen and oxygen. Hydrogen can be stored to produce electricity Continuous Power Supply “If consumption trends continue, worldwide consumption of crude oil will increase by over forty percent by 2025” - Report in Futurist magazine
    5. 5.  Hydrogen is secondary carrier just as electricity. Involves five basic issues  Production  Storage and Transport  Usage of Hydrogen as Energy Resource  Safety  Economics and Management
    6. 6.  Hydrogen fuel cells are an electrochemical energy conversion tools. A fuel cell combines hydrogen and oxygen to produce  Electricity,  Heat and  Water Fuel cells differ from batteries. Fuel cells are a promising technology Source of heat and electricity for buildings.
    7. 7.  Electrical power source for electric motors propelling vehicles. Fuel cells operate best on pure hydrogen. Some fuel cells even can be fuelled directly. In the future, hydrogen could also join electricity as an important energy carrier. Hydrogen can also be transported. For example: We can produce electric energy and hydrogen, and stored it until its needed. Toyota FCHV PEM FC fuel cell vehicle.
    8. 8.  AREVA track record: Distributed energy storage solution on MYRTE platform, University of Corsica site in Ajaccio, France. The world largest hydrogen-based energy management system coupled to a photovoltaic field.
    9. 9.  The RS-25, otherwise known as the Space Shuttle Main Engine (SSME), is a liquid- fuel cryogenic rocket engine. RS-25 burns cryogenic (liquid hydrogen & liquid oxygen) propellants, with each engine producing 1,859 kN (418,000 lbf) of thrust at lift off. The RS-25 operates at extreme temperatures,  The liquid hydrogen fuel stored at −250 C (−418 F)  The temperature in the combustion chamber reaches 3,315 C (6,000 F),
    10. 10.  Onboard fuel for motive power. Chemical energy of hydrogen to mechanical energy. Not an energy source, but is an energy carrier. No Carbon dioxide emission. Produces only nitrogen oxides (NOx) when burned in ICEs. Honda FCX Clarity, a hydrogen fuel cell demonstration vehicle introduced in 2008
    11. 11.  Automobiles. Buses. Bicycles. Bicycles Motorcycles & scooters. Airplanes Quads and tractors. Automobiles Fork trucks. Sequel, a fuel cell- powered vehicle Rockets. Airplanes The Boeing Fuel Cell Demonstrator powered by a hydrogen fuel cell
    12. 12.  The large investment in infrastructure would be required  To fuel vehicles, and  The inefficiency of production processes. Typical hydrogen fuel cell is also very expensive to produce. The efficiency of hydrogen fuel cells depends largely upon how much power is taken from it. Power Taken Out ∝ 1 Efficiency
    13. 13.  Low energy content per unit volume, High tank weights, Very high storage vessel pressures, The storage, Transportation and Filling of gaseous or liquid hydrogen in vehicles,