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  2. Engine knocking - Wikipedia

    en.wikipedia.org/wiki/Engine_knocking

    In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.

  3. Flywheel energy storage - Wikipedia

    en.wikipedia.org/wiki/Flywheel_energy_storage

    NASA G2 flywheel. Flywheel energy storage (FES) works by accelerating a rotor to a very high speed and maintaining the energy in the system as rotational energy.When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the system correspondingly results in an increase in the speed of the ...

  4. Hybrid vehicle drivetrain - Wikipedia

    en.wikipedia.org/wiki/Hybrid_vehicle_drivetrain

    Battery charge mode—Also used for idling, except that in this case the battery state-of-charge is low and requires charging, which is provided by the engine and generator. Power boost mode—Employed in situations where the engine cannot maintain the desired speed. The battery powers the motor to complement the engine power.

  5. Battery energy storage system - Wikipedia

    en.wikipedia.org/wiki/Battery_energy_storage_system

    A rechargeable battery bank used in a data center Lithium iron phosphate battery modules packaged in shipping containers installed at Beech Ridge Energy Storage System in West Virginia [9] [10] Battery storage power plants and uninterruptible power supplies (UPS) are comparable in technology and function. However, battery storage power plants ...

  6. Homogeneous charge compression ignition - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_charge...

    The first, called Combined Combustion System or CCS, is based on the VW Group 2.0-litre diesel engine, but uses homogeneous intake charge. It requires synthetic fuel to achieve maximum benefit. The second is called Gasoline Compression Ignition or GCI; it uses HCCI when cruising and spark ignition when accelerating.

  7. Hybrid power - Wikipedia

    en.wikipedia.org/wiki/Hybrid_power

    The battery helps match the power with the load. A hybrid solar inverter additionally allows the storage of low cost electricity drawn down on cheap tariffs. [32] In 2024, USA has 288 solar+battery power plants with a storage capacity at 7.8 GW power and 24.2 GWh energy. [33]

  8. Evacuations ordered in California after fire at battery power ...

    www.aol.com/evacuations-ordered-california-fire...

    A fire at a battery power plant in Central California triggered evacuation orders and road closures Thursday night. The Monterey County Sheriff's Office issued evacuation orders Thursday evening ...

  9. Automatic generation control - Wikipedia

    en.wikipedia.org/wiki/Automatic_generation_control

    Since a power grid requires that generation and load closely balance moment by moment, frequent adjustments to the output of generators are necessary. The balance can be judged by measuring the system frequency; if it is increasing, more power is being generated than used, which causes all the machines in the system to accelerate. If the system ...