The Diesel cycle is the combustion process of a type of reciprocating internal combustion engine, in which the fuel is ignited by the heat generated in first compressing air in the combustion chamber, into which is then injected the fuel, as opposed to it being ignited by a spark plug as in the Otto cycle (four-stroke/petrol) engine. Diesel engines (heat engines utilizing the Diesel cycle) are used in automobiles, power generation, diesel-electric locomotives, and submarines. In engineering and thermodynamics, a heat engine performs the conversion of heat energy to mechanical work by exploiting the temperature gradient between a hot source and a cold sink. Heat is transferred from the source, through the working body of the engine, to the sink, and in this process some... The Atkinson cycle engine is a type of Internal combustion engine invented by James Atkinson in 1882. ... The Brayton cycle is a cyclic process generally associated with the gas turbine. ... The Carnot cycle is a particular thermodynamic cycle, modeled on the Carnot heat engine, studied by Nicolas Léonard Sadi Carnot in the 1820s and expanded upon by Benoit Paul Émile Clapeyron in the 1830s and 40s. ... In a combined cycle power plant, or combined cycle gas turbine (CCGT) plant, a gas turbine generator generates electricity and the waste heat from the gas turbine is used to make steam to generate additional electricity via a steam turbine, this last step enhances the efficiency of electricity generation. ... The Crower six-stroke engine is a concept under development by Bruce Crower, known for the invention and manufacture of many devices now used in automotive acceleration racing (see National Hot Rod Association and drag racing). ... This article or section seems not to be written in the formal tone expected of an encyclopedia entry. ... The Kalina cycle is a thermodynamic cycle for converting thermal energy to mechanical power which utilizes working fluid comprised of at least two different components and a ratio between those components is varied in different parts of the system to increase thermodynamical reversibility and therefore increase overall thermodynamic efficiency. ... The Lenoir cycle is an idealised thermodynamic cycle for the pulse jet engine. ... kill them In engineering, the Miller cycle is a combustion process used in a type of four-stroke internal combustion engine. ... Dual Combustion Cycle(Also known as limited pressure cycle or mixed cycle) is a combination of Otto Cycle and Diesel Cycle, in a way , that heat is added partly at constant volume and partly at constant pressure. ... The four-stroke cycle of an internal combustion engine is the cycle most commonly used for automotive and industrial purposes today and everyday in (cars and trucks, electrical generators, etc). ... The Rankine cycle is a thermodynamic cycle. ... The Scuderi Split Cycle Engine design is a rethink of the conventional four-stroke Otto cycle internal combustion engine conceived by Carmelo J. Scuderi (1925-2002). ... A Stirling engine and generator set with 55 kW electrical output, for combined heat and power applications. ... The two-stroke cycle of an internal combustion engine differs from the more common four-stroke cycle by completing the same four operations (intake, compression, power, exhaust) in only two strokes (linear movements of the piston) rather than four. ... Wankel Engine in Deutsches Museum Munich, Germany The Wankel rotary engine is a type of internal combustion engine, invented by German engineer Felix Wankel, which uses a rotor instead of reciprocating pistons. ... The internal combustion engine is an engine in which the burning of a fuel occurs in a confined space called a combustion chamber. ... Fuel is any material that is capable of releasing energy when its chemical or physical structure is changed or converted. ... This article or section should include material from Spark gap A spark plug is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark. ... The four-stroke cycle of an internal combustion engine is the cycle most commonly used for automotive and industrial purposes today ( cars and trucks, generators, etc). ... In engineering and thermodynamics, a heat engine performs the conversion of heat energy to mechanical work by exploiting the temperature gradient between a hot source and a cold sink. Heat is transferred from the source, through the working body of the engine, to the sink, and in this process some... Karl Benzs Velo (vélo means bicycle in French) model (1894) - entered into the first automobile race 2005 MINI CooperS. An automobile (also motor car or simply car) is a wheeled passenger vehicle that carries its own motor. ... Itaipu Dam is a hydroelectric generating station Electricity generation is the first process in the delivery of electricity to consumers. ... A number of vehicles use a diesel-electric powerplant for providing locomotion. ... Great Western Railway No. ... USS Los Angeles A submarine is a specialized watercraft that can operate underwater. ...

Diesel cycle

The diesel cycle was introduced by Dr. Rudolph Diesel in 1897 and was originally designed to run off of Peanut oil. In a Diesel cycle engine, heat is supplied (by the burning fuel) while maintaining the cylinder at a constant pressure. This article needs to be cleaned up to conform to a higher standard of quality. ... A bottle of peanut oil Peanut oil is an organic oil derived from peanuts, noted to have the slight aroma and taste of its parent legume. ...

The Diesel cycle generally refers to compression ignition power plants, called the Diesel engine. The engine can be two or four stroke and may draw in air by using the piston or with the aid of an engine-driven supercharger or exhaust gas-driven turbocharger. As the air is compressed it gets hot. When the piston reaches approximately "top dead center", the fuel is injected directly into the cylinder with a high-pressure fuel injector. The fuel ignites immediately; however, as diesel fuel has a higher molecular weight than gasoline, it vaporizes and burns more slowly. The piston is already moving down by the time the combustion starts, and combustion is usually not finished when the piston reaches "bottom dead center." Because of this incomplete combustion, diesel engines actually lose some of the potential energy of the fuel. ^{[verification needed]} This article or section does not cite its references or sources. ... ... The molecular mass of a substance (less accurately called molecular weight and abbreviated as MW) is the mass of one molecule of that substance, relative to the unified atomic mass unit u (equal to 1/12 the mass of one atom of carbon-12). ... Gasoline or petrol is a petroleum-derived liquid mixture consisting mostly of hydrocarbons and enhanced with benzene or iso-octane to increase octane ratings, used as fuel in internal combustion engines. ... In the physical sciences, potential energy is energy which is captured within a physical system by virtue of the relative positions or configurations of objects, and which has the potential to be released when the system is allowed to attain a configuration with a lower energy state. ...

Diesel cycle

Diesel cycle engines are nevertheless more efficient than Otto cycle engines overall, but only when power needs to be scaled. Most land vehicles almost never use the maximum rated power of the engine. Unless the vehicle is at wide open throttle, when the pedal is 'floored', the engine is only producing a fraction of its rated power. Since diesel engines use the heating effect of compressing the air to ignite the fuel, a diesel engine can inject as little or as much fuel as the situation demands. It is important to note that Otto cycle engines can be more efficient than Diesel cycle engines, but only when the engine is running at or near its maximum power. This is dependent on the Otto cycle engine's compression ratio. Image File history File links Diesel_cycle_p&v. ... Image File history File links Diesel_cycle_p&v. ... Wide Open Throttle (WOT) refers to an internal combustion engines maximum intake of air and fuel that occurs when the throttle plates inside the carburetor or throttle body are wide open, providing the least resistance to the incoming air. ...

General information

Main article: Diesel engine

The diesel engine has the lowest specific fuel consumption of any large internal combustion engine, 0.26 lb/hp.h (0.16 kg/kWh) for very large marine engines. In fact, two-stroke diesels with high pressure forced induction, particularly turbocharging, make up a large percentage of the very largest diesel engines. This article or section does not cite its references or sources. ... Specific fuel consumption, often shortened to SFC, is an engineering term that is used to describe the fuel efficiency of an engine design. ... Turbocharger Cut-away A turbocharger is a device used in internal-combustion engines to increase the power output of the engine by increasing the mass of oxygen and fuel entering the engine. ...

In North America, diesel engines are primarily used in large trucks, where the low-stress, high-efficiency cycle leads to much longer engine life and lower operational costs. These advantages also make the diesel engine ideal for use in the heavy-haul railroad environment. World map showing North America A satellite composite image of North America. ...

Other internal combustion engines without spark plugs

Many model airplanes use very simple "glow" and "diesel" engines. Glow engines use glow plugs. "Diesel" model airplane engines have variable compression ratios. Both types depend on special fuels (easily obtainable in such limited quantities) for their ignition timing. Aircraft modeling or aeromodelling is a hobby that has been popular since the 1930s. ... Used glow plug from an Vauxhall/Opel Astra turbo diesel engine Glow plugs are used to heat the combustion chambers of diesel engines in cold conditions to help ignition at coldstart. ...

Some 19th century or earlier experimental engines used external flames, exposed by valves, for ignition, but this becomes less attractive with increasing compression. (It was not until Nicolas Léonard Sadi Carnot that the thermodynamic value of compression was known.) An historical implication of this is that the diesel engine would eventually have been invented without the aid of electricity. Sadi Carnot Nicolas Léonard Sadi Carnot (June 1, 1796 - August 24, 1832) was a French mathematician and engineer who gave the first successful theoretical account of heat engines, the Carnot cycle, and laid the foundations of the second law of thermodynamics. ...