scholarly journals Superconducting thermo-magnetic-mechanical energy conversion machine

2021 ◽  
Author(s):  
Mahir Al-ani
Keyword(s):  
Magnetic Field ◽  
Critical Temperature ◽  
Energy Conversion ◽  
Mechanical Energy ◽  
Cost Effective ◽  
Meissner Effect ◽  
Step Change ◽  
Proof Of Concept ◽  
Energy Conversion Process ◽  
The Magnetic Field

Abstract This paper presents a superconducting thermo-magnetic-mechanical (STMM) energy conversion process. This energy conversion concept revolves around of utilizing a cryogenic coolant, e.g., liquid nitrogen, as a thermal energy facilitator to cool down the superconductor to below the critical temperature. Then, utilizing the mixed state, i.e., Meissner effect and weak vertex - which leads to partially shielding the magnetic field - an external magnetic field is used to apply force on the superconductor and create motion. The concept proposed is demonstrated using thorough Multiphysics understanding i.e., thermal, magnetic, and mechanical. The proof of concept is completed by using a combination of analytical and numerical simulations and calculations, and measurements. Using this concept, a practical automotive drive has been theoretically designed and compared with a counterpart electric drive. The proposed technology has a potential to provide a step change for the sustainable cleaner cost-effective transportation.

scholarly journals Design and Fabrication of Solenoid Compressed Hybrid Air Engine

2021 ◽  
Vol 9 (VII) ◽  
pp. 2154-2160
Author(s):  
Dr. Akhilendra Yadav
Keyword(s):  
Magnetic Field ◽  
Fossil Fuel ◽  
Copper Wire ◽  
Mechanical Energy ◽  
Compressed Air ◽  
Low Grade ◽  
Connecting Rod ◽  
Ic Engine ◽  
Developed Country ◽  
The Magnetic Field

As we are moving towards the developed country, the need of fossil fuel is increasing day by day with increasing population. We need alternative to replace fossil fuel. In IC engine, the chemical energy get converted into mechanical energy, i.e., the low grade energy get converted into high grade energy. The IC engine we use cause more pollution. So to overcome this problem, the electromagnetic force and compressed air is use to run the engine. The solenoid compressed hybrid air engine which uses electric energy and compressed air to run, can replace the use of IC engine. As we pass current through the copper wire winding, the magnetic field generated near the copper wire. The polarity of the magnetic field can vary according to the current. The magnet attached at the piston get attracted up as the polarity of permanent magnet and this force is transferred to the connecting rod and crankshaft assembly, which transfer the reciprocating motion of piston into rotating motion of crankshaft and finally the flywheel. The electromagnetic engine should be more compatible. The electromagnetic engine does not require extra components like cam follower, valves, fuel pump, injectors, fuel tank etc. The strength of magnetic force can be increase by varying the input voltage and current.

Experimental Research on the Magnetic Field Sensitive Polymeric Actuator

2011 ◽  
Vol 287-290 ◽  
pp. 603-607
Author(s):  
Chun Lin Xia ◽  
Yang Fang Wu ◽  
Qian Qian Lu
Keyword(s):  
Magnetic Field ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Energy Conversion ◽  
Experimental Research ◽  
Experimental Results ◽  
Deformation Characteristics ◽  
Analysis Software ◽  
Element Analysis ◽  
The Magnetic Field

Using domestic MFSP membrane as a medium of energy conversion, a kind of MFSP actuator was designed. The dedicated test equipment was constructed for experimental research, and the experimental results were given. The strip and circular MSFP membrane were analyzed qualitatively to obtain the deformation characteristics of membrane by finite element analysis software.

scholarly journals Meissner effect in holographic superconductors with Dirac–Born–Infeld electrodynamics

2019 ◽  
Vol 35 (06) ◽  
pp. 2050020
Author(s):  
Debabrata Ghorai ◽  
Sunandan Gangopadhyay ◽  
Rabin Banerjee
Keyword(s):  
Magnetic Field ◽  
Critical Temperature ◽  
Meissner Effect ◽  
Critical Magnetic Field ◽  
Matching Method ◽  
Holographic Superconductors

In this paper, we have investigated the Meissner effect of holographic superconductors in the presence of Dirac–Born–Infeld electrodynamics. The matching method is applied to obtain the critical magnetic field and the critical temperature. The critical magnetic field obtained from this investigation shows the effects of the DBI parameter [Formula: see text] and differs from that obtained from Born electrodynamics because of the extra [Formula: see text] term in the Dirac–Born–Infeld theory. It is observed that the critical magnetic field increases in Dirac–Born–Infeld theory compared to that in the Born theory.

scholarly journals A hybrid fluxgate and search coil magnetometer concept using a racetrack core

2018 ◽  
Vol 7 (4) ◽  
pp. 265-276 ◽  
Author(s):  
David M. Miles ◽  
B. Barry Narod ◽  
David K. Milling ◽  
Ian R. Mann ◽  
David Barona ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solid Core ◽  
Proof Of Concept ◽  
Noise Performance ◽  
Hardware Complexity ◽  
Search Coil ◽  
Air Core ◽  
Single Sensor ◽  
The Magnetic Field

Abstract. A proof-of-concept hybrid magnetometer is presented, which simultaneously operates as both a fluxgate and a search coil, allowing it to sense the magnetic field from DC to 2 kHz using a single sensor. Historically, such measurements would normally require two dedicated instruments, and each would typically require deployment on its own dedicated boom as the instruments mutually interfere. A racetrack fluxgate core combined with a long solenoidal sense winding is shown to be moderately effective as a search coil magnetometer, and the search coil effect can be captured without introducing significant hardware complexity beyond what is already present in a typical fluxgate instrument. Several methods of optimising the search coil action of the hybrid instrument are compared with the best method providing sensitivity and noise performance between comparably sized traditional air-core and solid-core search coil instruments. This hybrid sensor topology should miniaturise to platforms such as CubeSats for which multiple boom-mounted instruments are generally impractical, so a single hybrid instrument providing modest, but scientifically useful, sensitivity from DC to kHz frequencies would be beneficial.

Phenomena Occurring during the Electro-Dynamic Forming of Non-Ferrous Pipe Elements

2011 ◽  
Vol 177 ◽  
pp. 23-35 ◽  
Author(s):  
Andrzej Kot
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Energy Conversion ◽  
Pulse Magnetic Field ◽  
Mechanical Energy ◽  
Electric Energy ◽  
Flux Variation ◽  
Formed Product ◽  
Physical Phenomena

The paper presents description of physical phenomena arising during the process of electrodynamic forming by means of axisymetric inductors generating pulse magnetic field. Presented material shows the way for determination of pressures acting on non-ferrous pipe elements with an assumption of magnetic flux variation character in system. The paper describes also stages of energy conversion from electric energy of capacitors discharge into mechanical energy of pressure forming semi-finished product. The knowledge about presented phenomena allow to predict final shape of formed product during free forming by electrodynamic method.

scholarly journals A Hybrid Fluxgate and Search Coil Magnetometer Concept Using a Racetrack Core

2018 ◽  
Author(s):  
David M. Miles ◽  
B. Barry Narod ◽  
David K. Milling ◽  
Ian R. Mann ◽  
David Barona ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Solid Core ◽  
Proof Of Concept ◽  
Noise Performance ◽  
Hardware Complexity ◽  
Search Coil ◽  
Air Core ◽  
Single Sensor ◽  
The Magnetic Field

Abstract. A proof-of-concept hybrid magnetometer is presented which simultaneously operates as both a fluxgate and a search coil allowing it to sense the magnetic field from DC to two kHz using a single sensor. Historically, such measurements would normally require two dedicated instruments and each would typically require deployment on its own dedicated boom as the instruments mutually interfere. A racetrack fluxgate core combined with a long solenoidal sense winding is shown to be moderately effective as a search coil magnetometer and the search coil effect can be captured without introducing significant hardware complexity beyond what is already present in a typical fluxgate instrument. Several methods of optimizing the search coil action of the hybrid instrument are compared with the best providing sensitivity and noise performance between comparably sized traditional air core and solid core search coil instruments. This hybrid sensor topology should miniaturize to platforms such a CubeSats where multiple boom-mounted instruments are generally impractical so a single hybrid instrument providing modest, but scientifically useful, sensitivity from DC to kHz frequencies would be beneficial.

scholarly journals Сonditions of achieving electromagnetic motor maximal efficiency

2020 ◽  
pp. 45-59
Author(s):  
Vladimir Neyman ◽  
Keyword(s):  
Magnetic Field ◽  
Automatic Control ◽  
Energy Conversion ◽  
Research Subject ◽  
Theoretical Limit ◽  
Magnetic Cycle ◽  
The Past ◽  
Conversion Mode ◽  
Maximal Efficiency ◽  
The Magnetic Field

Energy conversion modes of the electromagnetic motor when the armature is accelerated are established to be preferable with respect to maximal efficiency. A non-saturated electromagnetic motor where the armature is once accelerated in the magnetic field generated by the inductor is considered to be a research subject. New relations are obtained for the analysis of the conditions when the maximal efficiency is achieved with respect to the energy conversion mode and the elementary magnetic cycle configuration. It is shown that the efficiency of about 100 % can be theoretically achieved only if special automatic control means are used. The efficiency cannot be more than a theoretical limit of 50 % if there is no automatic control. The obtained results and conclusions for separate energy conversion modes are well agreed with the results obtained by other authors in the past.

Phase Transition in 2D Anisotropic Ising Model with Next-Nearest Neighbor Interactions in a Magnetic Field

SPIN ◽  
2018 ◽  
Vol 08 (03) ◽  
pp. 1850010
Author(s):  
D. Farsal ◽  
M. Badia ◽  
M. Bennai
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Phase Diagram ◽  
Monte Carlo ◽  
Magnetic Susceptibility ◽  
Critical Temperature ◽  
Ising Model ◽  
Nearest Neighbor ◽  
Two Dimensional ◽  
The Magnetic Field

The critical behavior at the phase transition of the ferromagnetic two-dimensional anisotropic Ising model with next-nearest neighbor (NNN) couplings in the presence of the field is determined using mainly Monte Carlo (MC) method. This method is used to investigate the phase diagram of the model and to verify the existence of a divergence at null temperature which often appears in two-dimensional systems. We analyze also the influence of the report of the NNN interactions [Formula: see text] and the magnetic field [Formula: see text] on the critical temperature of the system, and we show that the critical temperature depends on the magnetic field for positive values of the interaction. Finally, we have investigated other thermodynamical qualities such as the magnetic susceptibility [Formula: see text]. It has been shown that their thermal behavior depends qualitatively and quantitatively on the strength of NNN interactions and the magnetic field.

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