Πλοήγηση ανά Θέμα "Liquids"
Αποτελέσματα 1-20 από 24
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Aqueous phase reforming (APR) of glycerol over platinum supported on Al2O3 catalyst
(2016)The glycerol's APR reaction over 5% Pt/Al2O3 catalyst for H2 production in a batch reactor is investigated in the present work. The effect of the operating parameters, such as the: i) reaction time, ii) operating temperature, ... -
Crude bio-glycerol aqueous phase reforming and hydrogenolysis over commercial SiO2Al2O3 nickel catalyst
(2016)In the present work, an one-pot Aqueous Phase Reforming (APR) and Aqueous Phase Hydrogenolysis (APH) of crude glycerol in a batch reactor containing commercial SiO2Al2O3 supported 65%Ni catalyst is performed. The effect ... -
Darcy-Weisbach friction factor at the nanoscale: From atomistic calculations to continuum models
(2017)Amodification of the Darcy-Weisbach friction factor applicable to nanoscale liquid transport processes is proposed. Non-equilibrium molecular dynamics simulations allowus to access the atomic behaviour of liquids moving ... -
Dynamic simulation of a coated microbubble in an unbounded flow: Response to a step change in pressure
(2017)A numerical method is developed to study the dynamic behaviour of an encapsulated bubble when the viscous forces of the surrounding liquid are accounted for. The continuity and Navier-Stokes equations are solved for the ... -
The effect of adsorption modeling on the stability of surfactant-laden liquid film flow
(2018)The primary instability of gravity-driven, liquid film flow is examined when the liquid contains a soluble surfactant. It is shown that the model adopted for the description of adsorption equilibrium affects significantly ... -
The Effect of Flexible Vegetation in Gravity Currents with Large Salinity in Composite Cross Section
(2022)In this study experiments in a laboratory tank to examine the effect of bed with vegetation on the motion of gravity currents between fresh and salt water with high salinity were performed. The shape of the tank was composite ... -
Extractor dimensions affect optimization of laboratory-scale batch solid-liquid extraction of polyphenols from plant material: potato peels as a case study
(2021)Polyphenols are commonly retrieved from plant material with solid-liquid extraction, the optimization of which requires fundamental laboratory-scale investigation, to clearly identify variables and variable levels crucial ... -
Hydrogenolysis of glycerol to propylene glycol by in situ produced hydrogen from aqueous phase reforming of glycerol over SiO2-Al2O3 supported nickel catalyst
(2016)In the present work, the reactions of glycerol's aqueous phase reforming (APR) and Aqueous Phase Hydrogenolysis (APH) in a batch reactor containing SiO2-Al2O3 supported 65% Ni catalyst are performed. The effect of: i) the ... -
Inactivation of Listeria monocytogenes in raw and hot smoked trout fillets by high hydrostatic pressure processing combined with liquid smoke and freezing
(2020)High hydrostatic pressure (HHP; 200 MPa for 15 min), liquid smoke (0.50%, v/v) and freezing (−80 °C, overnight) was used to eliminate Listeria monocytogenes in BHI broth, raw and smoked trout. The bactericidal effect of ... -
Investigation of various nozzles configurations with respect to IFMIF and liquid walls concepts
(2015)The study of liquid-metal free surface flows is of great interest in the fusion research, for example in the IFMIF and liquid walls concepts. In the IFMIF project, the main goal is to test candidate metallic materials in ... -
MHD liquid metal flow and heat transfer between vertical coaxial cylinders under horizontal magnetic field
(2017)Direct numerical simulations are presented of MHD liquid metal flow and heat transfer in vertical annuli. Three annular gaps and four ratios of annular height to annular gap are considered. The walls of the external and ... -
Numerical study of the interaction between a pulsating coated microbubble and a rigid wall. II. Trapped pulsation
(2021)The dynamic response of an encapsulated bubble subject to an acoustic disturbance in a wall restricted flow is investigated, when the viscous forces of the surrounding liquid are accounted for. The Galerkin finite element ... -
Penetration of different liquids in wood-based composites: The effect of adsorption energy
(2021)The penetration properties of three different liquids on the surface of medium-density fiberboard (MDF) and particleboard panels were studied. Water, as a polar liquid, was compared to two other less polar liquids (namely, ... -
Performance criteria for liquid storage tanks and piping systems subjected to seismic loading
(2015)In this paper, performance criteria for the seismic design of industrial liquid storage tanks and piping systems are proposed, aimed at defining a performance-based design framework towards reliable development of fragility ... -
Performance Criteria for Liquid Storage Tanks and Piping Systems Subjected to Seismic Loading
(2017)In this paper, performance criteria for the seismic design of industrial liquid storage tanks and piping systems are proposed, aimed at introducing those industrial components into a performance-based design (PBD) framework. ... -
Proper orthogonal decomposition of primary breakup and spray in co-axial airblast atomizers
(2019)The primary atomization of a liquid jet by a coaxial stream of high speed gas is analyzed by means of Proper Orthogonal Decomposition (POD) for gas to liquid momentum ratios (MR) from 182 to 727 and Weber numbers, We, from ... -
A refined analytical model for earthquake-induced sloshing in half-full deformable horizontal cylindrical liquid containers
(2016)The coupled response of elastic deformable liquid containers of horizontal-cylindrical shape under external seismic excitation is examined, through an analytical methodology, assuming inviscid-incompressible fluid and ... -
Seismic response of unanchored liquid storage tanks
(2012)Unanchored liquid storage tanks under strong earthquake loading tend to uplift. In the present study, the effects of base uplifting on the seismic response of unanchored tanks are presented with emphasis on elephant's foot ... -
A simple and efficient model for seismic response and low-cycle fatigue assessment of uplifting liquid storage tanks
(2018)Ground-supported unanchored liquid-storage cylindrical tanks, when subjected to strong seismic loading may exhibit uplifting of their bottom plate, which may have significant effects on their dynamic behavior and structural ... -
Simplified model for the seismic performance of unanchored liquid storage tanks
(2015)Ground-supported unanchored liquid-storage cylindrical tanks, when subjected to strong seismic loading may exhibit uplifting of their bottom plate, which has significant effects on their dynamic behavior and strength. Those ...