Results 41 to 50 of about 45,527 (189)

Coupling of PZT Thin Films with Bimetallic Strip Heat Engines for Thermal Energy Harvesting

open access: yesSensors, 2018
A thermal energy harvester based on a double transduction mechanism and which converts thermal energy into electrical energy by means of piezoelectric membranes and bimetals, has previously been developed and widely presented in the literature In such a ...
Jihane Boughaleb   +7 more
doaj   +1 more source

Turbocharged Diesel Engine Power Production Enhancement: Proposing a Novel Thermal-Driven Supercharging System based on Kalina Cycle [PDF]

open access: yesRenewable Energy Research and Applications, 2020
In this paper, a novel thermal driven supercharging system for downsizing of a turbocharged diesel engine is proposed. Furthermore, Kalina cycle has been used as waste heat recovery system to run the mounted supercharging system. The waste heat of air in
F. Salek   +2 more
doaj   +1 more source

Conical holographic heat engines [PDF]

open access: yesClassical and Quantum Gravity, 2019
We demonstrate that adding a conical deficit to a black hole holographic heat engine increases its efficiency; in contrast, allowing a black hole to accelerate {\it decreases} efficiency if the same average conical deficit is maintained. Adding other charges to the black hole does not change this qualitative effect.
Wasif Ahmed   +4 more
openaire   +5 more sources

Autonomous rotor heat engine [PDF]

open access: yesPhysical Review E, 2017
13 pages, 8 figures; added a thermodynamic analysis of the engine's ...
Juan Miguel Arrazola   +4 more
openaire   +4 more sources

Algorithmic quantum heat engines [PDF]

open access: yesPhysical Review E, 2019
We suggest alternative quantum Otto engines, using heat bath algorithmic cooling with a partner pairing algorithm instead of isochoric cooling and using quantum swap operations instead of quantum adiabatic processes. Liquid state nuclear magnetic resonance systems in a single entropy sink are treated as working fluids.
Emre Köse   +4 more
openaire   +5 more sources

Quantum Optomechanical Heat Engine [PDF]

open access: yesPhysical Review Letters, 2014
We investigate theoretically a quantum optomechanical realization of a heat engine. In a generic optomechanical arrangement the optomechanical coupling between the cavity field and the oscillating end-mirror results in polariton normal mode excitations whose character depends on the pump detuning and the coupling strength.
Pierre Meystre   +2 more
openaire   +4 more sources

2D-statement simulation of thermogasdynamic processes in a rotary-blade engine with external heat supply

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics
To analyze the characteristics of a rotor-blade engine with external heat supply, a 2D model of this mechanism is considered. The simulation took into account the movement of the working chambers of the engine and the change in their shape.
Koyokin Vadim, Bulovich Sergey
doaj   +1 more source

Quantum-dot heat engines with irreversible heat transfer

open access: yesPhysical Review Research, 2020
We study an endoreversible quantum heat engine in which the heat transfer between the baths is mediated by two qubits. Each qubit acts as an energy filter which allows for the conversion of heat into work.
Jianying Du   +4 more
doaj   +1 more source

POSSIBLE WAYS OF DECREASE IN EMISSIONS OF CARBON DIOXIDE GAS

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2018
In article possible ways of decrease in emissions of carbon dioxide gas are considered. Features of technologies of extraction of CO2 from flue gases. Foreign experience of use of CO2 is analyzed.
A. M. Gafurov   +3 more
doaj   +1 more source

Kinetic energy generation in heat engines and heat pumps: the relationship between surface pressure, temperature and circulation cell size

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2017
The pattern and size of the Earth’s atmospheric circulation cells determine regional climates and challenge theorists. Here the authors present a theoretical framework that relates the size of meridional cells to the kinetic energy generation within them.
A.M. Makarieva   +6 more
doaj   +1 more source

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