Results 21 to 30 of about 45,527 (189)

Performance of Curzon-Ahlborn engine along with its engine speed and compression ratio

open access: yesJournal of Thermal Science and Technology, 2019
We evaluated the ideal limits of performance (power and efficiency) of heat engines operated with external heat sources along with their engine speed and compression ratio, using the method of adjoint equations based on variational principle. It is known
Shinji KOJIMA
doaj   +1 more source

Experimental characterization of autonomous heat engine based on minimal dynamical-system model

open access: yesPhysical 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

A Simple Heat Engine [PDF]

open access: yesNature, 1892
MR. FREDERICK SMITH described in NATURE of January 28 (p. 294) a simple heating machine, which he constructed with a nickel disk, so that when heated before a magnet it began to revolve. A similar heating machine was shown by Prof. Dr. T. Stefan, Vice-President of the Imperial and Royal Academy in Vienna, in the course of a lecture to his students ...
openaire   +5 more sources

Methodology For Calculating Automotive Oil Radiator

open access: yesСельскохозяйственные машины и технологии, 2022
The paper highlights the relevance of the problem of determining the amount of heat supplied by an internal combustion engine to a liquid cooling system when creating typical series of unified heat exchangers for tractor and combine engines (power units).
E. P. Parlyuk, A. V. Kurilenko
doaj   +1 more source

Holographic heat engines [PDF]

open access: yesClassical 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

The advisability of using combustion chambers with a toroidal recirculation-mixing zone in small-sized gas turbine engines

open access: yesMATEC 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

Optimizing the Classical Heat Engine [PDF]

open access: yesPhysical 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   +7 more sources

Active Brownian heat engines [PDF]

open access: yesPhysical Review Research, 2020
26 pages, 12 ...
Stefano Steffenoni   +6 more
openaire   +6 more sources

8-stroke low heat rejection engine

open access: yesEnergy 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
doaj  

The effect of combustion type on exhaust emissions and thermal efficiency at partial load operating condition in heavy duty diesel engines

open access: yesMechanical Engineering Journal, 2020
In heavy duty diesel engines, reductions of exhaust emissions and improvement in thermal efficiency have been strongly required from a view point of the prevention of air pollution and global warming.
Takuya YAMAGUCHI
doaj   +1 more source

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