Results 21 to 30 of about 47,567 (258)

Efficiency at maximum power output for an engine with a passive piston [PDF]

open access: yes, 2016
Efficiency at maximum power (MP) output for an engine with a passive piston without mechanical controls between two reservoirs is theoretically studied. We enclose a hard core gas partitioned by a massive piston in a temperature-controlled container and ...
Hayakawa, Hisao, Sano, Tomohiko G.
core   +2 more sources

Research and analysis of a thermal optimisation design method for aluminium alloy pistons in diesel engines

open access: yesCase Studies in Thermal Engineering, 2023
To further improve the thermal state of the piston for better thermal design, a multi-objective optimisation algorithm was used in this paper to find the best combination of design variables.
Yang Liu   +5 more
doaj   +1 more source

Fluid-Structure Interaction Heat Transfer of Piston with Consideration of Oil Oscillating Cooling and In-Cylinder Local Heat Transfer

open access: yesChemical Engineering Transactions, 2017
Taking the piston of heavy commercial vehicle as an example, in-cylinder local heat transfer boundary condition is obtained through the calculation of intake, spray, combustion and exhaust process; the heat transfer boundaries of the inner oil gallery ...
X. Liu   +4 more
doaj   +1 more source

A transient numerical study for heat transfer and flow characteristics of dimpled piston cooling gallery of a diesel engine

open access: yesCase Studies in Thermal Engineering, 2023
Piston cooling gallery is an effective cooling method to achieve an acceptable piston temperature field. This paper aims to analyze the effects of teardrop dimples size and dimple head-and-tail orientation on flow and heat transfer inside the cooling ...
Jinkun Wang   +4 more
doaj   +1 more source

ANALIZING THE EFFICIENCY OF COOLING AIR OF COGENERATION RECIPROCATING GAS COMBUSTION MODULE OF INTEGRATION ENERGY SYSTEM

open access: yesАвіаційно-космічна техніка та технологія, 2019
The analysis of the efficiency of cooling air of cogeneration gas-piston module of installations for combined production of electric energy, heat, and cold is performed.
Андрій Миколайович Радченко   +4 more
doaj   +1 more source

Effect of flow in the circular 90-degree curved nozzles on ejecting oil jet behavior

open access: yesJournal of Fluid Science and Technology, 2021
In general, technical methods for improving the thermal efficiency of an engine increase the heat load on peripheral components. Recently, a piston cooling gallery equipped with a flow path has been developed.
Mikimasa KAWAGUCHI   +7 more
doaj   +1 more source

The effect of piston bowl temperature on diesel exhaust emissions [PDF]

open access: yes, 2005
In modern, high-speed, direct injection diesel engines for passenger vehicles, there is extensive impingement of the fuel sprays on to the piston bowl walls.
Ladommatos, N, Xiao, Z, Zhao, H
core   +1 more source

Combined effects of pressure and Ru substitution on BaFe2As2 [PDF]

open access: yes, 2011
The ab-plane resistivity of Ba(Fe1-xRux)2As2 (x = 0.00, 0.09, 0.16, 0.21, and 0.28) was studied under nearly hydrostatic pressures, up to 7.4 GPa, in order to explore the T-P phase diagram and to compare the combined effects of iso-electronic Ru ...
A. Thaler   +6 more
core   +4 more sources

Critical behavior of two freely evolving granular gases separated by an adiabatic piston

open access: yes, 2010
Two granular gases separated by an adiabatic piston and initially in the same macroscopic state are considered. It is found that a phase transition with an spontaneous symmetry breaking occurs.
Brey, J. Javier, Khalil, Nagi
core   +1 more source

A Zero-Gravity Instrument to Study Low Velocity Collisions of Fragile Particles at Low Temperatures [PDF]

open access: yes, 2009
We discuss the design, operation, and performance of a vacuum setup constructed for use in zero (or reduced) gravity conditions to initiate collisions of fragile millimeter-sized particles at low velocity and temperature.
Blum, J.   +16 more
core   +3 more sources

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