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Nevertheless, the Carnot cycle demonstrates that the state of the surroundings may change in a reversible process as the system returns to its initial state. Reversible processes define the boundaries of how efficient heat engines can be in thermodynamics and engineering: a reversible process is one where the machine has maximum efficiency (see ...
The Carnot cycle, which has a quantum equivalent, [11] is reversible so the four processes that comprise it, two isothermal and two isentropic, can also be reversed. When a Carnot cycle runs in reverse, it is called a reverse Carnot cycle. A refrigerator or heat pump that acts according to the reversed Carnot cycle is called a Carnot ...
A Carnot cycle is an ideal thermodynamic cycle proposed by French physicist Sadi Carnot in 1824 and expanded upon by others in the 1830s and 1840s. By Carnot's theorem, it provides an upper limit on the efficiency of any classical thermodynamic engine during the conversion of heat into work, or conversely, the efficiency of a refrigeration system in creating a temperature difference through ...
Cycle de Carnot; Usage on fr.wikibooks.org Technologie/Moteurs thermiques/Moteur Diesel/Cycle de Carnot; Usage on fr.wikiversity.org Recherche:Pastech/242-3 Le Congélateur Alimentaire; Usage on hu.wikipedia.org A termodinamika második főtétele; Usage on it.wikipedia.org Secondo principio della termodinamica; Usage on pt.wikipedia.org Ciclo ...
The Carnot cycle is a cycle composed of the totally reversible processes of isentropic compression and expansion and isothermal heat addition and rejection. The thermal efficiency of a Carnot cycle depends only on the absolute temperatures of the two reservoirs in which heat transfer takes place, and for a power cycle is:
The ionocaloric refrigeration cycle is an advanced cooling technology that utilizes the ionocaloric effect, driven by an electrochemical field, to achieve efficient and eco-friendly refrigeration. By manipulating the electrochemical potential through ion addition or removal, significant temperature changes and entropy variations are achieved.
Download QR code; In other projects Appearance. move to sidebar hide ... Pressure-volume (p-V) diagram for the Carnot cycle. File usage. The following 3 pages use ...
The Otto cycle can serve as a template for other reciprocating cycles. Quantum Otto cycle shown in the Entropy plane where the energy entropy and the Von Neumann entropy are displayed. is the internal frequency of the device and is controlled externally. It mimics the inverse volume in the Otto cycle. The red and blue lines are the hot and cold ...