HYDROGEN Uses and Energy. HYDROGEN: What is it? Simplest element 1 proton 1 electron.
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Transcript of HYDROGEN Uses and Energy. HYDROGEN: What is it? Simplest element 1 proton 1 electron.
![Page 1: HYDROGEN Uses and Energy. HYDROGEN: What is it? Simplest element 1 proton 1 electron.](https://reader036.fdocuments.us/reader036/viewer/2022062718/56649e6f5503460f94b6c2de/html5/thumbnails/1.jpg)
HYDROGEN
Uses and Energy
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HYDROGEN: What is it?
Simplest element 1 proton 1 electron
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HYDROGEN
MOST ABUNDANT GAS IN THE UNIVERSE Highest energy by weight Lowest energy by volume
OUR SUN: 4 Hydrogen fuse into 1 Helium
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HYDROGEN: Energy
OUR SUN Light Heat Wind Rain Photosynthesis Fossil fuels
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HYDROGEN: On Earth
ABUNDANTBUT, Hydrogen gas, H2, not naturally
found on EarthFound as:
CH4, H2O, biomass, fossil fuels, in Earth’s crust
Considered Renewable
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HYDROGEN: Energy On Earth
As an energy source:Highly efficient
•A lot of energy for a small amountLow pollutionFLEXIBLEUSES:
•Transportation, heating, power generation
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HYDROGEN: Production
STEAM REFORMING:High-temperature steam
separates hydrogen from methane.
C
H
HH
H 1. Cost effective
2. But uses fossil fuels
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HYDROGEN: Production
ELECTROLYSIS: splitting water with electricity
2H2O + electricity 2H2 + O2
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HYDROGEN: Production
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HYDROGEN: Production
ELECTROLYSIS: VERY PURE
Can use renewable energyWATER is renewable
BUT, VERY EXPENSIVE
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HYDROGEN: Production
PHOTOELECTROLYSIS:Uses sunlight to split water2H2O + SUNLIGHT 2H2 + O2
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HYDROGEN: Production
BIOMASS GASIFICATIONBIOMASS GASIFICATIONBiomass is super-heated into Biomass is super-heated into
hydrogen and other gaseshydrogen and other gasesBIOMASS CAN BE USED TO BIOMASS CAN BE USED TO
GENERATE THE HEATGENERATE THE HEAT
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HYDROGEN: Current Uses
RefiningRefiningTreating metalsTreating metalsFood processingFood processing
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HYDROGEN: Current Uses
NASA: FUEL CELLSNASA: FUEL CELLSPropelling space shuttlePropelling space shuttlePowering electrical systems by Powering electrical systems by
reverse electrolysisreverse electrolysis
2H2 + O2 2H2O + electricity
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HYDROGEN: Current Uses
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HYDROGEN: Current Uses
COSTS of REVERSE ELECTROLYSIS: Very expensive to build fuel cells Very expensive to produce hydrogen Not many ‘Filling Stations’ Technology is not widespread
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HYDROGEN: Current Uses
BENEFITS of REVERSE ELECTROLYSIS: Zero emissions Very efficient Very portable and accessible Reduces need of dependence on
foreign oil