Results 51 to 60 of about 3,226,193 (375)
Experimental characterization of autonomous heat engine based on minimal dynamical-system model
Physical Review Research, 2020 The autonomous heat engine is a model system of autonomous nonequilibrium systems, exploiting nonequilibrium flow for operations. As the Carnot engine has essentially contributed to the equilibrium thermodynamics, an autonomous heat engine is expected to
Shoichi Toyabe, Yuki Izumida
doaj +1 more source
Second law for active heat engines [PDF]
Phys. Rev. X 12, 031034 (2022), 2021 Macroscopic cyclic heat engines have been a major motivation for the emergence of thermodynamics. In the last decade, cyclic heat engines that have large fluctuations and operate at finite time were studied within the more modern framework of stochastic thermodynamics.
arxiv +1 more source
Active Brownian heat engines [PDF]
Physical Review Research, 2020 26 pages, 12 ...
Stefano Steffenoni +6 more
openaire +6 more sources
Verification of ignition energy time distribution control for a diluted combustion engine
Nihon Kikai Gakkai ronbunshu, 2021 Several high energy ignitions have been proposed to improve ignition performance of diluted combustion recently. One of the major issues in the high energy ignition systems is heat generation of an ignition coil due to increase of power consumption. This
Eiichiro OHATA, Kazuhiro ORYOJI
doaj +1 more source
Spin Heat Engine Coupled to a Harmonic-Oscillator Flywheel. [PDF]
Physical Review Letters, 2018 We realize a heat engine using a single-electron spin as a working medium. The spin pertains to the valence electron of a trapped ^{40}Ca^{+} ion, and heat reservoirs are emulated by controlling the spin polarization via optical pumping.
D. Lindenfels +6 more
semanticscholar +1 more source
Holographic heat engines [PDF]
Classical and Quantum Gravity, 2014 It is shown that in theories of gravity where the cosmological constant is considered a thermodynamic variable, it is natural to use black holes as heat engines. Two examples are presented in detail using AdS charged black holes as the working substance.
openaire +3 more sources
Optimizing the Classical Heat Engine [PDF]
Physical Review Letters, 2000 A pair of systems at different temperatures is a classic environment for a heat engine, which produces work during the relaxation to a common equilibrium. It is generally believed that a direct interaction between the two systems will always decrease the amount of the obtainable work, due to inevitable dissipation.
Armen E. Allahverdyan +1 more
openaire +6 more sources
Quantum mechanical Carnot engine [PDF]
, 2000 A cyclic thermodynamic heat engine runs most efficiently if it is reversible. Carnot constructed such a reversible heat engine by combining adiabatic and isothermal processes for a system containing an ideal gas.
Bernhard K Meister +7 more
core +2 more sources
MATEC Web of Conferences, 2018 The interrelations between the size of the gas turbine engine (GTE) and the size and workflow of the combustion chamber (CC) were considered. On the base of analysis of workflow organization the design of CC with toroidal recirculation mixing zone was ...
Yurievich Orlov Michael +4 more
doaj +1 more source
Heat Engine Drives Transport of an FeII4L4 Cage and Cargo
Advances in Materials, 2020 The directed motion of species against a chemical potential gradient is a fundamental feature of living systems, underpinning processes that range from transport through cell membranes to neurotransmission.
Bao-Nguyen T Nguyen +4 more
semanticscholar +1 more source