scholarly journals Application of magnetic field to CO hydrogenation using a confined-space catalyst: effect on reactant gas diffusivity and reactivity

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 3990-3996
Author(s):  
Waleeporn Donphai ◽  
Naphaphan Kunthakudee ◽  
Sirapat Munpollasri ◽  
Pariyawalee Sangteantong ◽  
Surangrat Tonlublao ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
External Magnetic Field ◽  
Co Hydrogenation ◽  
Confined Space ◽  
Gas Diffusivity ◽  
Co Conversion ◽  
Limited Mass ◽  
Catalyst Effect

Synergy between an external magnetic field and limited mass transfer within zeolite cavities leads to different diffusion abilities of CO and H2 during the reaction within the catalyst pores, leading to significant improvement in CO conversion.

Anisotropic magnetite nanoclusters with enhanced magnetization as an efficient ferrofluid in mass transfer and liquid hyperthermia

2019 ◽  
Vol 43 (21) ◽  
pp. 8044-8051 ◽  
Author(s):  
Alireza Mouraki ◽  
Zeinab Alinejad ◽  
Samira Sanjabi ◽  
Ali Reza Mahdavian
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
External Magnetic Field ◽  
Superparamagnetic Nanoparticles ◽  
Stable Dispersion ◽  
Heat Build Up

A stable dispersion of anisotropic superparamagnetic nanoparticles was introduced for efficient heat build-up and mass transfer under an external magnetic field.

A Study of Heat and Mass Transfer of Nanofluids Arising in Biosciences Using Buongiorno's Model

2017 ◽  
Vol 14 (02) ◽  
pp. 1750018 ◽  
Author(s):  
Syed Tauseef Mohyud-Din ◽  
Muhammad Usman ◽  
Bandar Bin-Mohsin
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
External Magnetic Field ◽  
Differential Equations ◽  
Iteration Method ◽  
Variational Iteration Method ◽  
Nonlinear Ordinary Differential Equations ◽  
Buongiorno’S Model ◽  
Variation Of Parameters ◽  
Similarity Transformations

Flow in converging/diverging channels under the influence of external magnetic field is presented. The walls of the channels are taken to be stretching/shrinking. Buongiorno's model is used to formulate the problem for nanofluids. It is to be highlighted that such models arise frequently in biosciences. The equations governing the flow are transformed to a set of nonlinear ordinary differential equations by employing appropriate similarity transformations. Two efficient techniques variational iteration method (VIM) and variation of parameters method (VPM) are employed to tackle the complexity and nonlinearity of the presented model. Comprehensive discussions on the results obtained are provided. Comparison of the obtained results with existing literature re-confirms the credibility of solution obtained via VIM and VPM.

RECOIL IMPLANTATION MÖSSBAUER EXPERIMENT ON 57Fe IN Ge IN THE PRESENCE OF AN EXTERNAL MAGNETIC FIELD

1980 ◽  
Vol 41 (C1) ◽  
pp. C1-445-C1-445
Author(s):  
G. Langouche ◽  
N. S. Dixon ◽  
L. Gettner ◽  
S. S. Hanna
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Recoil Implantation

Monte Carlo calculation of the energy parameters and spatial distribution of the cathodic arc ions while passing through the macro-particles filters

2018 ◽  
Vol 1 (1) ◽  
pp. 30-34 ◽  
Author(s):  
Alexey Chernogor ◽  
Igor Blinkov ◽  
Alexey Volkhonskiy
Keyword(s):  
Magnetic Field ◽  
Mass Transfer ◽  
Monte Carlo ◽  
Monte Carlo Calculation ◽  
Inhomogeneous Magnetic Field ◽  
Flow Energy ◽  
Wide Range ◽  
Field Concentrator ◽  
Cathodic Arc ◽  
The Magnetic Field

The flow, energy distribution and concentrations profiles of Ti ions in cathodic arc are studied by test particle Monte Carlo simulations with considering the mass transfer through the macro-particles filters with inhomogeneous magnetic field. The loss of ions due to their deposition on filter walls was calculated as a function of electric current and number of turns in the coil. The magnetic field concentrator that arises in the bending region of the filters leads to increase the loss of the ions component of cathodic arc. The ions loss up to 80 % of their energy resulted by the paired elastic collisions which correspond to the experimental results. The ion fluxes arriving at the surface of the substrates during planetary rotating of them opposite the evaporators mounted to each other at an angle of 120° characterized by the wide range of mutual overlapping.

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