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   Articles with "enthalpy" as a keyword



Mach Number Determination in a High-Enthalpy Supersonic Arc-Heated Plasma Wind Tunnel

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recommendations! Published in 2019 at "International Journal of Aeronautical and Space Sciences"

DOI: 10.1007/s42405-018-0128-x

Abstract: In this experimental study, an intrinsic flow diagnostic technique involving a wedge probe is studied in a 0.4 MW class arc-jet plasma wind tunnel. The main objectives of this study are to determine the Mach number… read more here.

Keywords: mach number; wind tunnel; plasma wind; enthalpy ... See more keywords

Prediction of enthalpy for the gases Cl2, Br2, and gaseous BBr

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recommendations! Published in 2019 at "Chemical Physics Letters"

DOI: 10.1016/j.cplett.2019.01.001

Abstract: Abstract We report a new efficient analytical representation of the molar enthalpy for gaseous substances. The predicted molar enthalpy values are in good agreement with the experimental data in a wide temperature range for the… read more here.

Keywords: cl2 br2; gases cl2; enthalpy; gaseous bbr ... See more keywords
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Nonconstant enthalpy of thermosetting solid-solid phase change materials controlled by light

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recommendations! Published in 2020 at "Energy and Buildings"

DOI: 10.1016/j.enbuild.2020.109894

Abstract: Abstract Phase change materials (PCMs) based on the principle of latent heat thermal energy storage have been highly concerned by researchers and widely developed in various fields. However, for traditional PCMs, especially thermosetting solid-solid change… read more here.

Keywords: change materials; thermosetting solid; phase change; change ... See more keywords
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Downhole measurement of enthalpy in geothermal wells – An analytical, experimental and numerical study

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recommendations! Published in 2020 at "Geothermics"

DOI: 10.1016/j.geothermics.2020.101902

Abstract: Abstract The enthalpy of two-phase geothermal fluids is typically monitored at the surface to understand the performance of a geothermal field. Surface enthalpy, however, cannot reflect real reservoir conditions downhole because of the heat loss… read more here.

Keywords: feed zone; two phase; surface; geothermal wells ... See more keywords
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Substitution of nickel in Mg2Ni and its hydride with elements from groups XIII and XIV: An ab initio study

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recommendations! Published in 2021 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2021.02.011

Abstract: Abstract We have performed ab initio calculations with equilibrium supercells of the Mg2Ni compound and its hydride Mg2NiH4 doped with elements X = Al, Ga, In, Si, Ge and Sn. Two concentrations of X in both structures… read more here.

Keywords: substitution nickel; mg2ni hydride; hydrogen; enthalpy ... See more keywords
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Influence of the convective energy formulation for melting problems with enthalpy methods

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recommendations! Published in 2020 at "International Journal of Thermal Sciences"

DOI: 10.1016/j.ijthermalsci.2020.106477

Abstract: Abstract The simulation of melting phenomena in the frame work of continuum theory can be handled through many different approaches, among which the fixed-grid methods are the most common ones. Even though such methods have… read more here.

Keywords: convective energy; energy; influence convective; formulation ... See more keywords

Alkyl-imidazolium tetrafluoroborates: Vapor pressure, thermodynamics of vaporization, and enthalpies of formation

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recommendations! Published in 2017 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2017.07.094

Abstract: Abstract The absolute vapor pressures for the series of [Cnmim][BF4] ionic liquids with (n = 2, 4, 6, 8, and 10) were measured over the temperature range 404–457 K by using the quartz-crystal microbalance. An absence of possible… read more here.

Keywords: thermodynamics; vapor pressure; formation; enthalpy ... See more keywords

Enthalpy of formation and disordering temperature of transient monotropic liquid crystals of poly(butylene 2,6-naphthalate)

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recommendations! Published in 2018 at "Polymer"

DOI: 10.1016/j.polymer.2018.10.037

Abstract: Abstract Melt-crystallization of poly(butylene 2,6-naphthalate) (PBN) at temperatures lower than about 160 °C follows Ostwald's rule of stages via intermediate formation of a smectic liquid crystalline phase (LC-phase). The transient LC-phase has been isolated by interruption… read more here.

Keywords: phase; temperature; butylene naphthalate; formation ... See more keywords

Deep eutectic solvents on a tightrope: balancing the entropy and enthalpy of mixing.

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recommendations! Published in 2024 at "Faraday discussions"

DOI: 10.1039/d4fd00048j

Abstract: The large melting point depressions characterising deep eutectic solvents (DESs) are related to negative deviations from ideal mixing behaviour characterised by the excess Gibbs energy. Favourable excess Gibbs energies result from a balance between the… read more here.

Keywords: chcl; enthalpy; enthalpy mixing; deep eutectic ... See more keywords

High-enthalpy unsteady pulsation flow over a double wedge

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recommendations! Published in 2025 at "Physics of Fluids"

DOI: 10.1063/5.0253810

Abstract: Large-scale pulsation unsteadiness is identified in the high-enthalpy shock wave-boundary-layer interaction flow over a double wedge. The objective of the study is to illustrate the transient flowfield evolution and spatiotemporal dynamics of the pulsation mode… read more here.

Keywords: high enthalpy; double wedge; enthalpy; pulsation ... See more keywords

Negative mixing enthalpy and mixing enthalpy alloying leads to interface and size effects towards superb creep resistance of nickel-based single crystalline superalloys

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recommendations! Published in 2025 at "National Science Review"

DOI: 10.1093/nsr/nwaf228

Abstract: ABSTRACT Nickel (Ni)-based single crystalline superalloys are the most important high-temperature service metallic materials for aircraft engine blades. These alloys’ microstructures and mechanical properties must remain stable under high temperature and stress conditions for long… read more here.

Keywords: single crystalline; enthalpy; size; based single ... See more keywords