Carbon Nanotubes Roles in Enhancing the Catalytic ehavior of α-Fe2O3 Nanowires for Green Ammonia Production Using the Magnetic Induction Method (MIM)

2014 ◽  
Vol 2 (2) ◽  
pp. 94-101 ◽  
Author(s):  
Noorhana Yahya ◽  
Krzysztof Koziol ◽  
Gregory Kozlowski ◽  
Jeefferie Abd Razak ◽  
Poppy Puspitasari ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Induction ◽  
Ammonia Production ◽  
Induction Method

Shallow Magnetic Induction Measurements for Delineating Near-Surface Hot Groundwater Sources in Alaskan Geothermal Areas

1983 ◽  
Vol 105 (2) ◽  
pp. 156-161 ◽  
Author(s):  
T. E. Osterkamp ◽  
K. Kawasaki ◽  
J. P. Gosink
Keyword(s):  
Electrical Conductivity ◽  
Magnetic Induction ◽  
Hot Springs ◽  
Measured Temperature ◽  
Conductivity Data ◽  
Induction Method ◽  
Near Surface ◽  
Saline Groundwater ◽  
Geophysical Surveys ◽  
Conductivity Anomalies

Variations in the electrical conductivity of a soil and water system with temperature and salt concentration suggest that a soil containing hot and/or saline groundwater may be expected to have a higher conductivity compared to a cooler and/or less saline system. Temperature and conductivity surveys were carried out at Pilgrim Springs, on the Seward Peninsula, and at Chena Hot Springs, near Fairbanks, to test the use of a magnetic induction method (which measures electrical conductivity) for delineating near-surface hot groundwater sources in geothermal areas surrounded by permafrost. Comparison of the temperature data and conductivity data from these surveys demonstrates that the conductivity anomalies, as measured by the magnetic induction method, can be used to define the precise location of hot groundwater sources in these geothermal areas with the higher temperatures correlating with higher values of conductivity. Magnetic induction measurements of conductivity can also be used to define the lateral extent of the thawed geothermal areas (used for calculating the stored energy) in permafrost terrain. The utility of these magnetic induction measurements of conductivity for reconnaissance geophysical surveys of geothermal areas is that a much greater density of data can be obtained in a shorter time in comparison with shallow temperature measurements. In addition, it is simpler, cheaper and easier (physically) to obtain the data. While conductivity anomalies can result from other than hot and/or saline groundwater, these conductivity data, when coupled with a few measured temperature profiles and groundwater samples, should result in reliable reconnaissance level geophysical surveys in Alaskan geothermal areas.

Numerical Simulation of MHD Rectangular Duct Flow with FCI Based on Magnetic Induction Method

2012 ◽  
Vol 452-453 ◽  
pp. 344-347
Author(s):  
Tian Neng Xu ◽  
Jie Mao ◽  
Hua Chen Pan
Keyword(s):  
Numerical Simulation ◽  
Pressure Drop ◽  
Liquid Metal ◽  
Magnetic Induction ◽  
Metal Flow ◽  
Duct Flow ◽  
Rectangular Duct ◽  
Induction Method ◽  
Pressure Equalization ◽  
Liquid Metal Flow

In dual-coolant and self-cooled blanket concepts, the magnetohydrodynamic (MHD) pressure drop is a key point that should be considered. In order to reduce the high MHD drop, it requires an understanding of the liquid metal flow in rectangular duct with FCI. In this paper, two cases that have different pressure equalization slot widths were simulated based on MHD module of FLUENT. It is found that with different widths of pressure equalization slot, velocity distribution and pressure drop changes a lot.

The Double Magnetic Induction Method for Measuring Eye Movement - Results in Monkey and Man

1984 ◽  
Vol BME-31 (5) ◽  
pp. 419-427 ◽  
Author(s):  
Lo J. Bour ◽  
Jan A. M. Van Gisbergen ◽  
Jan Bruijns ◽  
Fenno P. Ottes
Keyword(s):  
Eye Movement ◽  
Magnetic Induction ◽  
Induction Method

scholarly journals Ammonia Synthesis Using Magnetically Induced Reaction

2013 ◽  
Vol 334-335 ◽  
pp. 329-336 ◽  
Author(s):  
Noorhana Yahya ◽  
Poppy Puspitasari ◽  
Nor Hasifah Noordin
Keyword(s):  
Magnetic Field ◽  
Catalytic Activity ◽  
Applied Magnetic Field ◽  
Magnetic Induction ◽  
Ammonia Synthesis ◽  
High Energy ◽  
Ammonia Production ◽  
Desorption Process ◽  
Capital Intensive ◽  
Micro Reactor

Ammonia production is a high energy and capital intensive industry as it requires high temperature (400500°C) and high pressure (150300 bar) for its daily operations. By introducing nanocatalyst with the new concept of micro-reactor with applied magnetic field induction, the catalytic activity can be induced and the output can be enhanced. Magneto-dynamics will be introduced in the ammonia production process in order to replace the concept of thermodynamics in the Haber Bosch process. The nanocatalysts (Y3Fe5O12, Fe2O3, MnO, Mn0.8Zn0.2Fe2O4) have been reduced by using the temperature reduction method (TPR). The Y3Fe5O12(YIG) catalyst with magnetic induction produced242.56µmol/h.g-cat output of ammonia which is 2% much higher than ammonia synthesis without magnetic induction (237.52 µmol/g.h).The ammonia output based on the magnetic induction method at a temperature of 0°C is 242.56µmole/h.g-cat which is 0.90% higher than the synthesis at 25°C temperature (240.4 µmol/g.h). The ammonia output at 0.2Tesla is 249.04 µmole/h.g-cat which is higher 2.6% than the output at 0.1Tesla which is 242.56µmol/g.h. It is proven that the higher the applied magnetic field is, the more effective the catalytic activity will be as a better alignment of the electron spin of the catalyst occurs and enhances the adsorption and desorption process. Y3Fe5O12(YIG) shows the best catalytic reaction followed by Fe2O3(hematite) and MnO (manganese oxide). By this new route, synthesis of ammonia at low temperature is realized and offers ammonia producers an economic advantage compared to the classical routes.

Investigation of the kinetics of laser heating of Fe–C alloys by a magnetic induction method

1987 ◽  
Vol 17 (11) ◽  
pp. 1503-1506
Author(s):  
Yu K Danileĭko ◽  
A I Pchelintsev ◽  
A V Sidorin ◽  
V M Tatarintsev
Keyword(s):  
Magnetic Induction ◽  
Laser Heating ◽  
Induction Method ◽  
Kinetics Of
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