Spark Ignition
Spark Ignition - Related Videos
08:42
How to Ignite an Atmospheric Pressure Microwave Plasma Torch without Any Additional Igniters
0 Views •
Cited by 26 •
2015
This movie shows how an atmospheric plasma torch can be ignited by microwaves with no additional igniters and provides a stable and continuous plasma operation suitable for plenty of applications.
11:22
Assessment of Calcium Sparks in Intact Skeletal Muscle Fibers
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Cited by 15 •
2014
Described here is a method to directly measure calcium sparks, the elementary units of Ca2+ release from sarcoplasmic reticulum in intact skeletal muscle fibers. This method utilizes osmotic-stress-mediated triggering of Ca2+ release from ryanodine receptor in isolated muscle fibers. The dynamics and homeostatic capacity of intracellular Ca2+ signaling can be employed to assess muscle function in health and disease.
01:14
Design Example: Automobile Ignition System
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2024
The automobile's ignition system plays a vital role by ensuring the timely ignition of the fuel-air mixture in each cylinder. This ignition is facilitated by a spark plug, which is composed of two electrodes separated by an air gap. A spark forms across this air gap when a substantial voltage is generated between the electrodes, leading to the ignition of the fuel. One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing rapid...
11:17
Spark Plasma Sintering Apparatus Used for the Formation of Strontium Titanate Bicrystals
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Cited by 5 •
2017
A viable technique for the formation of strontium titanate bicrystals at high pressure and fast heating rate via the spark plasma sintering apparatus is developed.
00:52
Washing, Drying, and Ignition of Precipitates
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2024
After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...
FAQs
The electrical discharge does more than supply heat: its high-voltage channel crosses the electrode gap and creates a hot plasma region. That region forms the initial flame kernel, a small burning zone that can grow into the surrounding compressed mixture. Its formation links electrical behavior to subsequent chemical combustion.
Compression affects spark ignition by changing the state of the fuel-air mixture before the discharge. Along with mixture composition, it influences how quickly the flame propagates after the kernel forms. Ignition timing determines when heat release begins, so these variables jointly affect combustion speed, engine efficiency, and power.
Turbulence changes the motion of the mixture around the developing flame. Because the flame must propagate through the compressed charge, fluid motion can influence the rate at which burning spreads. In physics analysis, turbulence therefore connects bulk gas motion with heat release and helps explain variations in combustion speed and performance.
During combustion, chemical energy becomes heat, and the resulting temperature and pressure increase act on the piston. This provides a direct thermodynamic route from molecular energy release to mechanical motion. Studying that chain helps relate spark ignition to pressure development, power production, and the operation of gasoline engines.
An investigation can organize spark-ignition behavior around ignition timing, mixture composition, compression, and turbulence. Varying or comparing these conditions allows researchers to examine changes in combustion speed, efficiency, power, and pollutant formation. This framework separates electrical initiation from the physical and chemical factors controlling later burning.
Spark ignition brings several physics areas together in one engine process. The electrical discharge illustrates plasma formation, compression and heat release involve thermodynamics, flame propagation depends on fluid motion, and fuel burning represents chemical energy conversion. This combination makes the process useful for studying how coupled physical effects produce practical engine output.