Results 331 to 340 of about 3,219,487 (379)

Optimal Configuration of Finite Source Heat Engine Cycle for Maximum Output Work with Complex Heat Transfer Law

Journal of Non-Equilibrium Thermodynamics, 2022
A finite source heat engine’s optimal configuration is studied. The model includes thermal resistance, heat leakage, a complex heat transfer law, and a heat source with variable temperature.
Jun Li, Lingen Chen
semanticscholar   +1 more source

Heat Engine Cycle Configurations for Maximum Work Output with Generalized Models of Reservoir Thermal Capacity and Heat Resistance

Journal of Non-Equilibrium Thermodynamics, 2022
A class of two finite-heat-reservoir endoreversible heat engine with the generalized models of both the reservoir thermal capacities and heat resistances is investigated.
Lingen Chen, Shaojun Xia
semanticscholar   +1 more source

A quantum-dot heat engine operating close to the thermodynamic efficiency limits

Nature Nanotechnology, 2017
Cyclical heat engines are a paradigm of classical thermodynamics, but are impractical for miniaturization because they rely on moving parts. A more recent concept is particle-exchange (PE) heat engines, which uses energy filtering to control a thermally ...
M. Josefsson, Artis Svilans, A. Burke, E. Hoffmann, S. Fahlvik, C. Thelander, M. Leijnse, H. Linke   +7 more
semanticscholar   +1 more source

Poleward heat transport by the atmospheric heat engine

Nature, 2002
The atmospheric heat transport on Earth from the Equator to the poles is largely carried out by the mid-latitude storms. However, there is no satisfactory theory to describe this fundamental feature of the Earth's climate. Previous studies have characterized the poleward heat transport as a diffusion by eddies of specified horizontal length and ...
Leon, Barry, George C, Craig, John, Thuburn   +2 more
openaire   +2 more sources

Multi-objective optimization of Stirling heat engine with various heat and mechanical losses

Energy, 2022
Haoran Xu, Lingen Chen, Y. Ge, H. Feng
semanticscholar   +1 more source

Maximum power and corresponding efficiency of an irreversible blue heat engine for harnessing waste heat and salinity gradient energy

Science China Technological Sciences, 2021
Jian Lin, Shan Xie, Chen Jiang, Yifei Sun, Jincan Chen, Yingru Zhao   +5 more
semanticscholar   +1 more source

New Type of Heat Engine-Externally Heated Air Engine

SAE Technical Paper Series, 1995
<div class="htmlview paragraph">A new type of the external combustion, or generally, externally heated engine is presented. The engine is composed of four essential parts: expander, compressor, heater and cooler. The expander and compressor are placed in one cylinder with one piston connected to the conventional crankshaft system. Air can be used
Lech Brzeski, Zbyszko Kazimierski
openaire   +1 more source

Heat engine efficiency and Joule–Thomson expansion of nonlinear charged AdS black hole in massive gravity

General Relativity and Gravitation, 2021
C. H. Nam
semanticscholar   +1 more source

Heat recovery in reciprocating engine

35th Joint Propulsion Conference and Exhibit, 1999
In this work, through the utilisation of a thermodynamic numeric code, ,it has been studied the possibility to introduce an heat exchanger to transfer the residual enthalpy present inthe exhaust gas of a .piston engine to a compressor-turbine system. Different configurations -have been considered, but the most promising of them, under the point of view
ANDRIANI, ROBERTO, GHEZZI, UMBERTO
openaire   +2 more sources

Colloidal heat engines: a review

Soft Matter, 2017
Stochastic heat engines can be built using colloidal particles trapped using optical tweezers. Here we review recent experimental realizations of microscopic heat engines. We first revisit the theoretical framework of stochastic thermodynamics that allows to describe the fluctuating behavior of the energy fluxes that occur at mesoscopic scales, and ...
Martinez, I., Roldan, E., Dinis, L., Rica, R.   +3 more
openaire   +3 more sources