Results 41 to 50 of about 39,917 (237)

A two-fluid helicity transport model for flux-rope merging

open access: yes, 2014
A two-fluid model for canonical helicity transport between merging flux-ropes is developed. Relative canonical helicity is defined here as the gauge invariant helicity of the canonical momentum of a given species, and represents the generalization of ...
You, Setthivoine
core   +1 more source

Modelling of high temperature storage systems for latent heat [PDF]

open access: yes, 2009
There is a huge demand for heat storages for evaporation applications. Thermal storage systems are used to increase the efficiency of thermal systems by an improved adaption of energy availability and energy demand. In this paper a possible solution
Stückle, Andreas
core   +1 more source

Optimization of a solar air heater with phase change materials: Experimental and ‎numerical study [PDF]

open access: yes, 2017
In this paper, a solar air heater (SAH) with phase change material (PCM)-based energy storage is ‎investigated. Paraffin was placed underneath the absorber plate as the PCM.
Kianifar, A, Moradi, Ramin, Wongwises, S
core   +1 more source

Classical Thermodynamic Analysis of Deuterium-Based Fusion Reactions

open access: yesHydrogen, 2022
The fusion reactions involving deuterium are of great interest for the exploitation of the fusion energy via magnetic-confinement devices. In classical thermodynamics, the spontaneity of a process is established through the assessment of the change in ...
Silvano Tosti, Luigi Marrelli
doaj   +1 more source

Preliminary evaluation of the expansion system size for a pressurized gas loop: Application to a fusion reactor based on a helium-cooled blanket [PDF]

open access: yes, 2017
Some considerations to preliminarily design the size of the Expansion Volume (EV) and the relief pipes for a Vacuum Vessel Pressure Suppression System, to be adopted in a fusion reactor based on a helium cooled blanket, are presented.
CARUSO, Gianfranco, NOBILI, MATTEO
core   +1 more source

The kinetic glass transition of the Zr46.75Ti8.25Cu7.5Ni10Be27.5 bulk metallic glass former-supercooled liquids on a long time scale [PDF]

open access: yes, 1998
Viscosity and enthalpy relaxation from the amorphous state into the supercooled liquid state was investigated in the bulk metallic glass forming Zr46.75Ti8.25Cu7.5Ni10Be27.5 alloy below the calorimetric glass transition.
Busch, R., Johnson, W. L.
core   +1 more source

Computational Study of Selected Amine and Lactam N-Oxides Including Comparisons of N-O Bond Dissociation Enthalpies with Those of Pyridine N-Oxides

open access: yesMolecules, 2020
A computational study of the structures and energetics of amine N-oxides, including pyridine N-oxides, trimethylamine N-oxide, bridgehead bicyclic amine N-oxides, and lactam N-oxides, allowed comparisons with published experimental data.
Arthur Greenberg   +2 more
doaj   +1 more source

Formulations of moist thermodynamics for atmospheric modelling

open access: yes, 2015
Internal energy, enthalpy and entropy are the key quantities to study thermodynamic properties of the moist atmosphere, because they correspond to the First (internal energy and enthalpy) and Second (entropy) Laws of thermodynamics.
Geleyn, Jean-François, Marquet, Pascal
core   +2 more sources

On the computation of moist-air specific thermal enthalpy [PDF]

open access: yes, 2014
The specific thermal enthalpy of a moist-air parcel is defined analytically following a method in which specific moist entropy is derived from the Third Law of thermodynamics.
Ambaum   +48 more
core   +3 more sources

Model of interaction between laser radiation and metal powder composition during direct laser growth

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
This paper presents a model for analyzing the interaction of laser radiation and a metal-powder composition in the process of direct laser growing of large-sized combustion chambers of gas turbine engines.
A. V. Balyakin
doaj   +1 more source

Home - About - Disclaimer - Privacy