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Comparative study of quantum Otto and Carnot engines powered by a spin working substance by M. Y. Abd-Rabbou; Atta ur Rahman; Mikhail A. Yurischev; Saeed Haddadi is a Physics and Astronomy article available to read on EtoBox.

What is Comparative study of quantum Otto and Carnot engines powered by a spin working substance about?

Quantum Otto and Carnot engines have recently been receiving attention due to their ability to achieve high efficiencies and powers based on the laws of quantum mechanics. This paper discusses the theory, progress, and possible applications of quantum Otto and Carnot engines, such as energy production, cooling, and nanoscale technologies. In particular, we investigate a two-spin Heisenberg system that works as a substance in quantum Otto and Carnot cycles while exposed to an external magnetic field with both Dzyaloshinsky-Moriya and dipole-dipole interactions. The four stages of engine cycles are subject to analysis with respect to the heat exchanges that occur between the hot and cold reservoirs, alongside the work done during each stage. The operating conditions of the heat engine, refrigerator, thermal accelerator, and heater are all achieved. Moreover, our results demonstrate that the laws of thermodynamics are strictly upheld and the Carnot cycle produces more useful work than that of the Otto cycle.

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Author

M. Y. Abd-Rabbou; Atta ur Rahman; Mikhail A. Yurischev; Saeed Haddadi

Publisher

American Physical Society (APS)

Published

2023

Language

EN

Field

Physics and Astronomy (Physical Sciences)