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  2. Energy transformation - Wikipedia

    en.wikipedia.org/wiki/Energy_transformation

    Fire is an example of energy transformation Energy transformation using Energy Systems Language. Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. [1] In physics, energy is a quantity that provides the capacity to perform work or moving (e.g. lifting an object) or provides heat.

  3. Units of energy - Wikipedia

    en.wikipedia.org/wiki/Units_of_energy

    The British imperial units and U.S. customary units for both energy and work include the foot-pound force (1.3558 J), the British thermal unit (BTU) which has various values in the region of 1055 J, the horsepower-hour (2.6845 MJ), and the gasoline gallon equivalent (about 120 MJ).

  4. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    Energy conversion efficiency depends on the usefulness of the output. All or part of the heat produced from burning a fuel may become rejected waste heat if, for example, work is the desired output from a thermodynamic cycle. Energy converter is an example of an energy transformation.

  5. Electricity generation - Wikipedia

    en.wikipedia.org/wiki/Electricity_generation

    Water Energy is captured by a water turbine from the movement of water - from falling water, the rise and fall of tides or ocean thermal currents (see ocean thermal energy conversion). Currently, hydroelectric plants provide approximately 16% of the world's electricity. The windmill was a very early wind turbine. In 2018 around 5% of the world ...

  6. Category:Energy conversion - Wikipedia

    en.wikipedia.org/wiki/Category:Energy_conversion

    Energy conversion is the process of transforming energy from one form into another. Subcategories. This category has the following 20 subcategories, out of 20 total. ...

  7. Outline of energy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_energy

    Wind energy is the kinetic energy of air in motion; Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electricity, windmills for mechanical power, windpumps for water pumping or drainage, or sails to propel ships

  8. Energy conservation - Wikipedia

    en.wikipedia.org/wiki/Energy_conservation

    An energy audit is an inspection and analysis of energy use and flows for energy conservation in a structure, process, or system intending to reduce energy input without negatively affecting output. Energy audits can determine specific opportunities for energy conservation and efficiency measures as well as determine cost-effective strategies. [2]

  9. Wave power - Wikipedia

    en.wikipedia.org/wiki/Wave_power

    The potential energy density is equal to the kinetic energy, [1] both contributing half to the wave energy density E, as can be expected from the equipartition theorem. The waves propagate on the surface, where crests travel with the phase velocity while the energy is transported horizontally with the group velocity .

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