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Quantum-Enhanced Heat Engine Based on Superabsorption. [PDF]
Physical Review Letters, 2021 We propose a quantum-enhanced heat engine with entanglement. The key feature of our scheme is superabsorption, which facilitates enhanced energy absorption by entangled qubits.
Shunsuke Kamimura +4 more
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Coherence-enhanced quantum-dot heat engine [PDF]
Physical Review Research, 2021 We show that quantum coherence can enhance the performance of a continuous quantum heat engine in the Lindblad description. We investigate the steady-state solutions of the particle-exchanging quantum heat engine, composed of degenerate double quantum ...
J. Um, K. Dorfman, Hyunggyu Park
semanticscholar +1 more source
Equivalent Heat Load Test on Hot Aircraft Engine Components [PDF]
Archives of Foundry Engineering, 2023 The paper presents the assumptions and methodology for investigating equivalent heat load testing of hot aircraft engine components. The basic heat loads occurring in an aircraft engine during aircraft flight are characterised.
M. Mróz +3 more
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8-stroke low heat rejection engine
Energy Reports, 2022 In a combustion engine, 25% of the energy present in the fuel is wasted as heat; this heat is dissipated to avoid overheating and prevent damages. This article presented a simulation work developed to study an internal combustion engine with a low heat ...
D. Silva Cardoso, P. Oliveira Fael
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Analog of a Quantum Heat Engine Using a Single-Spin Qubit. [PDF]
Physical Review Letters, 2020 A quantum two-level system with periodically modulated energy splitting could provide a minimal universal quantum heat machine. We present the experimental realization and the theoretical description of such a two-level system as an impurity electron ...
K. Ono +4 more
semanticscholar +1 more source
Investigation of effect of heat exchanger size on power output in low-temperature difference Stirling engines [PDF]
E3S Web of Conferences, 2021 The Stirling engine is capable of converting any source of thermal energy into kinetic energy, which makes it an attractive option for utilizing low-temperature sources such as geothermal or waste heat below 100 °C.
Hasanovich Linda, Nobes David
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Finite-time quantum Stirling heat engine [PDF]
New Journal of Physics, 2020 We study the thermodynamic performance of a finite-time non-regenerative quantum Stirling-like cycle used as a heat engine. We consider specifically the case in which the working substance (WS) is a two-level system (TLS).
S. Raja +4 more
semanticscholar +1 more source
A many-body heat engine at criticality [PDF]
Quantum Science and Technology, 2020 We show that a quantum Otto cycle in which the medium, an interacting ultracold gas, is driven between a superfluid and an insulating phase can outperform similar single particle cycles. The presence of an energy gap between the two phases can be used to
Thomás Fogarty, T. Busch
semanticscholar +1 more source
Holographic heat engines as quantum heat engines [PDF]
Classical and Quantum Gravity, 2020 Certain solutions of Einstein's equations in anti-de Sitter spacetime can be engineered, using extended gravitational thermodynamics, to yield `holographic heat engines', devices that turn heat into useful mechanical work. On the other hand, there are constructions (both experimental and theoretical) where a series of operations is performed on a small
openaire +2 more sources