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Energy modeling – the process of building computer models of energy systems; Energy system – the interpretation of the energy sector in system terms; Open Energy Modelling Initiative – a European-based energy modeling community; Open energy system databases – database projects which collect, clean, and republish energy-related datasets
Typically smaller than 0.01 cm 2 /(V⋅s); depends on electric field; increases with increasing temperature Starting with Ohm's law and using the definition of conductivity , it is possible to derive the following common expression for current as a function of carrier mobility μ and applied electric field E :
Transmitting electricity at high voltage reduces the fraction of energy lost to Joule heating, which varies by conductor type, the current, and the transmission distance. For example, a 100 miles (160 km) span at 765 kV carrying 1000 MW of power can have losses of 0.5% to 1.1%.
Bioelectrogenesis — The generation of electricity by living organisms. Capacitive coupling — Transfer of energy within an electrical network or between distant networks by means of displacement current. Contact electrification — The phenomenon of electrification by contact. When two objects were touched together, sometimes the objects ...
There are some notable similarities in equations for momentum, energy, and mass transfer [7] which can all be transported by diffusion, as illustrated by the following examples: Mass: the spreading and dissipation of odors in air is an example of mass diffusion. Energy: the conduction of heat in a solid material is an example of heat diffusion.
In the middle of the 1960s direct energy conversion was proposed as a method for capturing the energy from the exhaust gas in a fusion reactor. This would generate a direct current of electricity. Richard F. Post at the Lawrence Livermore National Laboratory was an early proponent of the idea. [ 1 ]
The high electric field causes the air around the high-voltage terminal to ionize and conduct electricity, allowing electricity to leak into the air in colorful corona discharges, brush discharges and streamer arcs. Tesla coils are used for entertainment at science museums and public events, and for special effects in movies and television.
A surviving example from 1780 exists at Bad Kösen that transmits power approximately 200 meters from a waterwheel to a salt well, and from there, an additional 150 meters to a brine evaporator. [2] This technology survived into the 21st century in a handful of oilfields in the US, transmitting power from a central pumping engine to the ...