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Hydrogen energy
This document discusses hydrogen as an element and energy source. It notes that hydrogen is the simplest and most abundant element in the universe, though it does not naturally occur as a gas. The document outlines several methods of hydrogen production and discusses its use in fuel cells to produce electricity and heat. It provides examples of hydrogen's use in transportation applications like cars, buses and rockets. The document also briefly discusses challenges to wider hydrogen adoption such as high production and infrastructure costs.
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Introduction of presenter Abhishek Pachisia, B.Tech-IT student.
Hydrogen is the simplest, most plentiful element. It’s energy-rich, colorless, with potential to replace fossil fuels.
Hydrogen production methods include steam reforming, electrolysis, and reactions of acids on metals.
Hydrogen can react with oxygen for energy; highlights increasing crude oil consumption projected by 2025.
Five key issues regarding hydrogen: production, storage, usage, safety, and economics.
Hydrogen fuel cells convert hydrogen and oxygen into electricity, heat, and water, differentiating from batteries.
Hydrogen is a power source for vehicles, with fuel cells functioning optimally on pure hydrogen.
AREVA showcases a distributed hydrogen energy storage solution in France, integrating photovoltaics.
RS-25 engine: liquid hydrogen in space applications produces 1,859 kN thrust, operating at extreme temperatures.
Hydrogen carries energy without CO2 emissions, producing NOx in combustion engines.
List of vehicles powered by hydrogen fuel cells: cars, buses, bikes, aircraft, and more.
Infrastructure investment challenges, high production costs, and efficiency concerns of fuel cells.
Challenges storing hydrogen: low energy content, high tank weights, storage pressures, and transportation.
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Hydrogen energy
- 1. Abhishek Pachisia B.Tech-IT 090102801
- 2. Hydrogen isthe 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. Steam Reforming. Electrolysis. Reaction of acids on metals. Hydrogenation of unsaturated substrates. Reducing equivalents in biochemical reactions. Recent research : Aluminium and Gallium Alloy.
- 4. Hydrogen energyis 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. Hydrogen issecondary carrier just as electricity. Involves five basic issues Production Storage and Transport Usage of Hydrogen as Energy Resource Safety Economics and Management
- 6. Hydrogen fuelcells 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. Electrical powersource 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 it's needed. Toyota FCHV PEM FC fuel cell vehicle.
- 8. AREVA trackrecord: 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. 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. Onboard fuelfor 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. 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. The largeinvestment 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. Low energycontent per unit volume, High tank weights, Very high storage vessel pressures, The storage, Transportation and Filling of gaseous or liquid hydrogen in vehicles,
Editor's Notes
- #5 -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.
- #7 -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.
- #10 -1-that was used on NASA's Space Shuttle -3-2-higher than the boiling point of iron.
- #11 -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
- #13 -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.