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  2. Outline of wind energy - Wikipedia

    en.wikipedia.org/wiki/Outline_of_wind_energy

    Wind energy can be described as all of the following: Wind Energy – Sun heats up uneven surface of earth, which causes motion of air. Hot air and cold air interchanges their places lead to flow of air. As it has force with motion, It carries kinetic energy. This is called wind energy.

  3. Electric machine - Wikipedia

    en.wikipedia.org/wiki/Electric_machine

    Electric machine. In electrical engineering, electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others. They are electromechanical energy converters: an electric motor converts electricity to mechanical power while an electric generator converts mechanical power to ...

  4. Energy harvesting - Wikipedia

    en.wikipedia.org/wiki/Energy_harvesting

    Energy harvesting (EH) – also known as power harvesting, energy scavenging, or ambient power – is the process by which energy is derived from external sources (e.g., solar power, thermal energy, wind energy, salinity gradients, and kinetic energy, also known as ambient energy), then stored for use by small, wireless autonomous devices, like those used in wearable electronics, condition ...

  5. Mechanical energy - Wikipedia

    en.wikipedia.org/wiki/Mechanical_energy

    General. Energy is a scalar quantity and the mechanical energy of a system is the sum of the potential energy (which is measured by the position of the parts of the system) and the kinetic energy (which is also called the energy of motion): [1][2] The potential energy, U, depends on the position of an object subjected to gravity or some other ...

  6. Thermodynamic free energy - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_free_energy

    The free energy is the portion of any first-law energy that is available to perform thermodynamic work at constant temperature, i.e., work mediated by thermal energy. Free energy is subject to irreversible loss in the course of such work. [1] Since first-law energy is always conserved, it is evident that free energy is an expendable, second-law ...

  7. Thermal physics - Wikipedia

    en.wikipedia.org/wiki/Thermal_physics

    Thermal physics, generally speaking, is the study of the statistical nature of physical systems from an energetic perspective. Starting with the basics of heat and temperature, thermal physics analyzes the first law of thermodynamics and second law of thermodynamics from the statistical perspective, in terms of the number of microstates corresponding to a given macrostate.

  8. Wind resource assessment - Wikipedia

    en.wikipedia.org/wiki/Wind_resource_assessment

    Wind resource map for the Philippines, from the Global Wind Atlas. High resolution mapping of wind power resource potential has traditionally been carried out at the country level by government or research agencies, in part due to the complexity of the process and the intensive computing requirements involved.

  9. Power tool - Wikipedia

    en.wikipedia.org/wiki/Power_tool

    Power tool. A power tool is a tool that is actuated by an additional power source and mechanism other than the solely manual labor used with hand tools. The most common types of power tools use electric motors. Internal combustion engines and compressed air are also commonly used. Tools directly driven by animal power are not generally ...