Thermodynamic cycles Thermodynamic cycles The Brayton cycle is a cyclic process generally associated with the gas turbine. Like other internal combustion power cycles it is an open system, though for thermodynamic analysis it is a convenient fiction to assume that the exhaust gases are reused in the intake, enabling analysis as a closed system. It named for George Brayton, and is also known as the Joule cycle. ...more on Wikipedia about "Brayton cycle"
The Carnot cycle is a particular thermodynamic cycle studied by Nicolas Léonard Sadi Carnot in the 1820s and expanded upon by Benoit Paul Émile Clapeyron in the 1830s and 40s. ...more on Wikipedia about "Carnot heat engine"
The Diesel cycle is the combustion process of a type of internal combustion engine, in which the burning of the fuel is triggered by the heat generated in first compressing air in the piston cavity, into which is then injected the fuel - as opposed to it being ignited by a spark plug, as combustion is 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. ...more on Wikipedia about "Diesel cycle"
The Ericsson Cycles are named after John Ericsson. He actually invented two such cycles and developed heat engines demonstrating them. The first cycle is identical to what we now call the " Brayton Cycle". The second cycle has all but been lost to history. The second cycle produces efficiencies equivalent to the Carnot Cycle. Both are often compared to a Stirling Engine for their external combustion capabilities, and the second cycles equivalent efficiency. ...more on Wikipedia about "Ericsson cycle"
The four-stroke cycle (or Otto cycle) of an internal combustion engine is the cycle most commonly used for automotive and industrial purposes today ( cars and trucks, generators, etc). It was conceptualized by the French engineer, Alphonse Beau de Rochas in 1862, and independently, by the German engineer Nikolaus Otto in 1876. The four-stroke cycle is more fuel-efficient and clean burning than the two-stroke cycle, but requires considerably more moving parts and manufacturing expertise. Moreover, it is more easily manufactured in multi-cylinder configurations than the two-stroke, making it especially useful in high-output applications such as cars. The later-invented Wankel engine has four similar phases but is a rotary combustion engine rather than the much more usual, reciprocating engine of the four-stroke cycle. ...more on Wikipedia about "Four-stroke cycle"
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. There are multiple variants of Kalina cycle systems specifically applicable for different types of heat sources. ...more on Wikipedia about "Kalina cycle"
(Rankine cycle) *Process 4-1: First, the working fluid is pumped (ideally adiabatically and isentropically) from low to high pressure by a pump. Pumping requires a power input (for example mechanical or electrical). ...more on Wikipedia about "Rankine cycle"
The staged combustion cycle is a thermodynamic cycle of bipropellant rocket rocket engines. Some of the propellant is burned in a pre-burner and the resulting hot gas is used to power the engine's turbines and pumps. The exhausted gas is then injected into the main combustion chamber, along with the rest of the propellant, and combustion is completed. ...more on Wikipedia about "Staged combustion cycle (rocket)"
The Stirling engine, also known as the hot air engine, is a heat engine of the external combustion piston engine type whose heat-exchange process allows for near-ideal efficiency in conversion of heat into mechanical movement by following the Carnot cycle as closely as is practically possible with given materials. ...more on Wikipedia about "Stirling engine"
Thermodynamic cycles involve a working fluid that goes through one or more state changes to produce work or energy, or to transfer energy, before returning to its initial state. Below is a list of thermodynamic cycles. ...more on Wikipedia about "Thermodynamic cycle"
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