Physical Sciences Perspective
Enviado por • 11 de Agosto de 2014 • 339 Palabras (2 Páginas) • 155 Visitas
equences from a Physical Sciences Perspective
The Sun is the largest exploitable resource
1 hour of sun to Earth = all of mankind's yearly energy.
Basic Science: How to capture and store?
The Essential Role of catalysis in conversion of solar energy to liquid fuels
The overall efficiency for the production of solar fuels
Biology’s CO2 Catalysts
Aerobic bacterium: O. Carboxidovorans
Anaerobic Bacterium: C. Hydrogenoformans
Synthesis gas from CO2, H2O, and Sunlight
1) Satus QUO
2) New Insights
Electrocatalysts: Greatly increases efficiency and reaction speed using inorganic complex
Nanorod Photovoltaic Array: High surface area, improved transport, lower cost fabrication
3) Solar Fuel Achievement
Main Achievement: Solar Fuel
4) Quantitative Imact
Nanorod semiconductor arrays - improved solar energy conversion efficiency
Electrocatalyst: Conversion efficiency - 80%
Superconductor-Energy Research
Experimental research in the energy sector is carried out in three areas: Superconductivity, Magnetism, Thermoelectric power generation and cooling
Discovery of Superconductivity
1908: Liquified helium
1911: Observed that electrical resistance of mercury vanishes below
Tc: Superconductivity critical temperature
1913: Nobel prize in Physics
Origin of Superconductivity
Metal: Periodic arrangement of positively charge ions “gas” of mobile negatively charged conduction electrons
Normal State: Scattering of electrons by:
1) Thermal Motion of Ions
2) Impurities
3) Other Electrons
Superconducting State: Electrons with opposite momentum are paired. Electron pairs move in concert through lattice without scattering
Markets
Hgher power destinies, better efficiencies, smaller size
Power cables
Motors, generators and sychronous consenders
MagLev trains
Fault current limiters
Magnetic separation
Accelerator and research magnets
Energy Considerations
iPhone used more energy than your fridge
More energy to stream a video than to manufacture and ship a CD
10% of energy consumption is on wireless
The Problem
Information technology is approaching a crisis
Integrated circuit power densities are already equivalent to those inside a nuclear reactor
The electronics are generating too much heat
The Idea
We propose to develop conceptually new excitonic signal processing where excitons are used in place of electrons
Excitonic signal processing is seamlessly coupled to optical communication thus
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