78 articles
Fuel tank
A fuel tank, also called a gas tank, is a container that safely stores fuel on board a vehicle or aircraft and supplies it to the engine.
Gasification
Gasification is a thermochemical process that converts carbon-containing materials like coal and biomass into syngas by reacting them at high temperature with controlled oxygen or steam.
Gasoline
Gasoline, also known as motor spirit, gasolene, or bensin, is a volatile hydrocarbon fuel refined from crude oil and blended with additives and ethanol, used mainly in vehicle engines.
Gasoline direct injection
Gasoline direct injection, also called petrol direct injection, is a fuel system for spark-ignition engines that injects fuel at high pressure directly into the combustion chamber.
Half-Heusler thermoelectric modules
A half-Heusler thermoelectric module is a solid-state generator converting heat into electricity via p-type and n-type half-Heusler alloy legs, suited to medium- and high-temperature waste heat recovery.
Heat engine
A heat engine, or thermal engine, is a device that converts heat from a hot source into mechanical work, rejecting the rest to a cold sink.
Heat of combustion
The heat of combustion, also called the heating value or calorific value, is the energy released when a unit amount of a substance burns completely in oxygen.
Hemispherical combustion chamber
A hemispherical combustion chamber, also called a Hemi-head, is a domed engine cylinder head chamber that allows large valves and short flame travel, used in Chrysler's Hemi V-8s from 1951.
High Sulphur Fuel Oil
High Sulphur Fuel Oil (HSFO) is a residual marine fuel with up to 3.5% sulfur, the dominant bunker fuel for ships until the IMO 2020 sulfur cap.
High-entropy oxide electrocatalysts for oxygen evolution
High-entropy oxide electrocatalysts for oxygen evolution are single-phase oxides containing five or more metals that catalyze the oxygen evolution reaction, an alternative to costly iridium and ruthenium catalysts.
History of gasoline
The history of gasoline runs from an 1860s waste byproduct of kerosene refining to the dominant US car fuel, shaped by cracking, leaded fuel, and regulation.
History of the internal combustion engine
The history of the internal combustion engine spans Étienne Lenoir's first commercial gas engine of 1860, Otto's four-stroke cycle of 1876, the Benz automobile, and Rudolf Diesel's 1897 engine.
Hydrothermal gasification
Hydrothermal gasification is a thermochemical conversion method that reacts wet biomass or organic waste in hot, pressurized water to produce gas rich in hydrogen or methane, with pilot plants only.
Hydrothermal liquefaction of plastics
Hydrothermal liquefaction of plastics (plastic HTL) is a thermochemical recycling process that decomposes waste polymers in hot, pressurized water into an oil refined into fuels and chemicals.
Hydrotreated vegetable oil
Hydrotreated vegetable oil (HVO), also known as renewable diesel or green diesel, is a liquid biofuel made by hydrogenating vegetable oils and waste fats, usable in diesel engines without modification.
Hyundai Gamma engine
The Hyundai Gamma engine is a family of 1.4- and 1.6-liter four-cylinder petrol engines that Hyundai developed in 2006 for compact cars like the Accent and Elantra.
Ignition system
An ignition system is the assembly of components that initiates combustion in an internal combustion engine, using a high-voltage spark in petrol engines and compression ignition in diesels.
Ignition timing
Ignition timing is the crankshaft angle at which the spark plug fires in a spark-ignition engine, expressed in degrees before or after top dead center.