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  2. Inverter compressor - Wikipedia

    en.wikipedia.org/wiki/Inverter_compressor

    In air conditioning, an inverter compressor is a compressor that is operated with an inverter.. In the hermetic type, it can either be a scroll or reciprocating compressor. ...

  3. Packaged terminal air conditioner - Wikipedia

    en.wikipedia.org/wiki/Packaged_terminal_air...

    Packaged terminal air conditioner installed in a residential apartment. A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1]

  4. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioning, often abbreviated as A/C (US) or air con (UK), [1] is the process of removing heat from an enclosed space to achieve a more comfortable interior temperature (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling the humidity of internal air.

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    The first residential AC was installed by 1914, and by the 1950s there was "widespread adoption of residential AC". [ 13 ] The invention of the components of HVAC systems went hand-in-hand with the Industrial Revolution , and new methods of modernization, higher efficiency, and system control are constantly being introduced by companies and ...

  6. Alternating current - Wikipedia

    en.wikipedia.org/wiki/Alternating_current

    The abbreviations AC and DC are often used to mean simply alternating and direct, respectively, as when they modify current or voltage. [ 1 ] [ 2 ] The usual waveform of alternating current in most electric power circuits is a sine wave , whose positive half-period corresponds with positive direction of the current and vice versa (the full ...

  7. Anak - Wikipedia

    en.wikipedia.org/wiki/Anak

    Anak (/ ˈ eɪ n æ k /; Hebrew: עֲנָק ‎, [1] homophone to a word for "giant, long neck, necklace"; Hebrew pronunciation: [ʕaˈnɔːq]) is a figure in the Hebrew Bible. His descendants are mentioned in narratives concerning the conquest of Canaan by the Israelites .

  8. AC-to-AC converter - Wikipedia

    en.wikipedia.org/wiki/AC-to-AC_converter

    An AC-AC converter with approximately sinusoidal input currents and bidirectional power flow can be realized by coupling a pulse-width modulation (PWM) rectifier and a PWM inverter to the DC-link. The DC-link quantity is then impressed by an energy storage element that is common to both stages, which is a capacitor C for the voltage DC-link or ...

  9. Single-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Single-phase_electric_power

    The first full AC power system, based on single phase alternating current, was created by William Stanley with financial support from Westinghouse in 1886. In 1897, experiments began for single phase power transmission. [2]