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Academic literature on the topic 'Passive Magnetic Current Limiter'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Passive Magnetic Current Limiter"

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Mukhopadhyay, S. C., M. Iwahara, S. Yamada, and F. P. Dawson. "Studies of various topologies of passive magnetic current limiter." International Journal of Applied Electromagnetics and Mechanics 11, no. 4 (August 1, 2000): 245–54. http://dx.doi.org/10.3233/jae-2000-204.

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Calman, S., F. P. Dawson, S. Yamada, and M. Iwahara. "Design improvements to a three-material passive magnetic current limiter." IEEE Transactions on Magnetics 37, no. 4 (July 2001): 2624–26. http://dx.doi.org/10.1109/20.951255.

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Wilson, P. R. "Modeling the Non Linear Behavior of a Magnetic Fault Current Limiter." Advanced Electromagnetics 4, no. 3 (November 21, 2015): 1. http://dx.doi.org/10.7716/aem.v4i3.265.

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Fault Current Limiters are used in a wide array of applications from small circuit protection at low power levels to large scale high power applications which require superconductors and complex control circuitry. One advantage of passive fault current limiters (FCL) is the automatic behavior that is dependent on the intrinsic properties of the circuit elements rather than on a complex feedback control scheme making this approach attractive for low cost applications and also where reliability is critical. This paper describes the behavioral modeling of a passive Magnetic FCL and its potential application in practical circuits.
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Linden, John, Yasha Nikulshin, Alex Friedman, Yosef Yeshurun, and Shuki Wolfus. "Design Optimization of a Permanent-Magnet Saturated-Core Fault-Current Limiter." Energies 12, no. 10 (May 14, 2019): 1823. http://dx.doi.org/10.3390/en12101823.

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Designs of saturated-cores fault current limiters (FCLs) usually implement conducting or superconducting DC coils serving to saturate the magnetic cores during nominal grid performance. The use of coils adds significantly to the operational cost of the system, consuming energy, and requiring maintenance. A derivative of the saturated-cores FCL is a design implementing permanent magnets as an alternative to the DC coils, eliminating practically all maintenance due to its entirely passive components. There are, however, various challenges such as the need to reach deep saturation with the currently available permanent magnets as well as the complications involved in the assembly process due to very powerful magnetic forces between the magnets and the cores. This paper presents several concepts, achieved by extensive magnetic simulations and verified experimentally, that help in maximizing the core saturation of the PMFCL (Permanent Magnet FCL), including optimization of the permanent magnet to core surface ratios and asymmetrical placement of the permanent magnets, both creating an increase in the cores’ magnetic flux at crucial points. In addition, we point to the importance of splitting the AC coils to leave the center core point exposed to best utilize their variable inductance parameters. This paper also describes the stages of design and assembly of a laboratory-scale single phase prototype model with the proposed PMFCL design recommendations, as well as an analysis of real-time results obtained while connecting this prototype to a 220 V grid during nominal and fault states.
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Choudhury, A. B., D. Roy, and M. Iwahara. "Field Distribution and Performance Analysis of a Passive Magnetic Fault-current Limiter under Transient Conditions." Electric Power Components and Systems 37, no. 11 (October 14, 2009): 1195–207. http://dx.doi.org/10.1080/15325000902993514.

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Das, Subhamoy, Tapan Santra, Amalendu Bikash Choudhury, Debabrata Roy, and Sotoshi Yamada. "Transient Modeling and Performance Analysis of a Passive Magnetic Fault Current Limiter Considering JA Hysteresis Model." Electric Power Components and Systems 47, no. 4-5 (March 16, 2019): 396–405. http://dx.doi.org/10.1080/15325008.2019.1603253.

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Foong Soong, Ming, Rahizar Ramli, Ahmad Abdullah Saifizul, and Mahdieh Zamzamzadeh. "Applicability of A Rotary Eddy Current Damper in Passenger Vehicle Suspension with Parallel Inerter." International Journal of Engineering & Technology 7, no. 3.17 (August 1, 2018): 76. http://dx.doi.org/10.14419/ijet.v7i3.17.16626.

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Numerous studies have proven that the performance of vehicle suspension can be benefited by an inerter in parallel to conventional spring-damper setup, yet its usability in passenger vehicle suspension is still limited by practical consideration in physical implementation. One way of achieving better physical implementation of the parallel inerter suspension layout is to exploit the inerter’s flywheel as a metallic conductor to integrate passive damping in the form of a rotary eddy current damper. However, the feasibility of eddy current damping in this specific application remains unknown. This study investigates the applicability of eddy current damping incorporated in an inerter in terms of the achievable damping rates as required in typical passenger vehicle suspensions. In the study, passive eddy current damping due to constant magnetic field around the flywheel of a mathematically designed inerter was computed through simulation, and the range of achievable damping rates due to parametric variations, for instance air gap and magnetic coverage, was evaluated. Results of the parametric analysis showed that the induced eddy current damping from a rack-and-pinion inerter’s flywheel, considering the designed inertance as prerequisite, was at least capable of achieving 1500 Nsm-1. As the achievable damping was within the range of suitable damping rates for typical passenger vehicles, rotary eddy current damper was deemed applicable in passenger vehicle suspension employing parallel inerter.
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Przysowa, Radosław, and Edward Rokicki. "Inductive sensors for blade tip-timing in gas turbines." Journal of KONBiN 36, no. 1 (December 1, 2015): 147–64. http://dx.doi.org/10.1515/jok-2015-0064.

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Abstract The paper reviews features and applications of the upgraded inductive sensor for BTT, which is able to operate in contact with exhaust gases of temperature even as high as 1200 K. The new design includes metal-ceramic housing ensuring proper heat transfer, magnetic circuit containing set of permanent magnets with various magnetic field values and Curie temperatures, completely redesigned windings and current/voltage converter used instead of an electromotive force amplifier. Its principle of operation is based on electro-dynamical interaction and therefore it may be referred as a passive eddy-current sensor. The sensor technique has been demonstrated on four stages of a surplus military turbofan including the high pressure turbine as part of the engine health monitoring system. We present signal samples and review methods used for online processing of time-of-arrival signals when only a limited number of sensors is available.
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Sederberg, Shawn, Curtis J. Firby, Shawn R. Greig, and Abdulhakem Y. Elezzabi. "Integrated nanoplasmonic waveguides for magnetic, nonlinear, and strong-field devices." Nanophotonics 6, no. 1 (January 6, 2017): 235–57. http://dx.doi.org/10.1515/nanoph-2016-0135.

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AbstractAs modern complementary-metal-oxide-semiconductor (CMOS) circuitry rapidly approaches fundamental speed and bandwidth limitations, optical platforms have become promising candidates to circumvent these limits and facilitate massive increases in computational power. To compete with high density CMOS circuitry, optical technology within the plasmonic regime is desirable, because of the sub-diffraction limited confinement of electromagnetic energy, large optical bandwidth, and ultrafast processing capabilities. As such, nanoplasmonic waveguides act as nanoscale conduits for optical signals, thereby forming the backbone of such a platform. In recent years, significant research interest has developed to uncover the fundamental physics governing phenomena occurring within nanoplasmonic waveguides, and to implement unique optical devices. In doing so, a wide variety of material properties have been exploited. CMOS-compatible materials facilitate passive plasmonic routing devices for directing the confined radiation. Magnetic materials facilitate time-reversal symmetry breaking, aiding in the development of nonreciprocal isolators or modulators. Additionally, strong confinement and enhancement of electric fields within such waveguides require the use of materials with high nonlinear coefficients to achieve increased nonlinear optical phenomenon in a nanoscale footprint. Furthermore, this enhancement and confinement of the fields facilitate the study of strong-field effects within the solid-state environment of the waveguide. Here, we review current state-of-the-art physics and applications of nanoplasmonic waveguides pertaining to passive, magnetoplasmonic, nonlinear, and strong-field devices. Such components are essential elements in integrated optical circuitry, and each fulfill specific roles in truly developing a chip-scale plasmonic computing architecture.
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Cha, Y. S., Zhongjin Yang, L. R. Turner, and R. B. Poeppel. "Analysis of a passive superconducting fault current limiter." IEEE Transactions on Appiled Superconductivity 8, no. 1 (March 1998): 20–25. http://dx.doi.org/10.1109/77.662690.

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Dissertations / Theses on the topic "Passive Magnetic Current Limiter"

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Matsumura, T., A. Kimura, H. Shimizu, Y. Yokomizu, and M. Goto. "Fundamental performance of flux-lock type fault current limiter with two air-core coils." IEEE, 2003. http://hdl.handle.net/2237/6786.

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Matsumura, T., H. Shimizu, and Y. Yokomizu. "Design guideline of flux-lock type HTS fault current limiter for power system application." IEEE, 2001. http://hdl.handle.net/2237/6783.

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Le, Toan T. "A Single-Stage Passive Vibration Isolation System for Scanning Tunneling Microscopy." DigitalCommons@CalPoly, 2021. https://digitalcommons.calpoly.edu/theses/2272.

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Scanning Tunneling Microscopy (STM) uses quantum tunneling effect to study the surfaces of materials on an atomic scale. Since the probe of the microscope is on the order of nanometers away from the surface, the device is prone to noises due to vibrations from the surroundings. To minimize the random noises and floor vibrations, passive vibration isolation is a commonly used technique due to its low cost and simpler design compared to active vibration isolation, especially when the entire vibration isolation system (VIS) stays inside an Ultra High Vacuum (UHV) environment. This research aims to analyze and build a single-stage passive VIS for an STM. The VIS consists of a mass-spring system staying inside an aluminum hollow tube. The mass-spring system is comprised of a circular copper stage suspended by a combination of six extension springs, and the STM stays on top of the copper stage. Magnetic damping with neodymium magnets, which induces eddy currents in the copper conductor, is the primary damping method to reduce the vibrations transferred to the mass-spring system. FEMM and MATLAB® are used to model magnetic flux density and damping coefficients from eddy current effect, which will help determine the necessary damping ratios for the VIS. Viton, which demonstrates a high compatibility with vacuum environments, will also serve as a great damping material between joints and contacts for the housing tube. Viton will be modeled as a Mooney-Rivlin hyperelastic material whose material parameters are previous studied, and Abaqus will be used as a Finite Element Analysis software to study the Viton gaskets’ natural frequencies. The natural frequencies of the aluminum hollow tube will also be investigated through Abaqus.
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Books on the topic "Passive Magnetic Current Limiter"

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Fox, Kieran C. R. Neural Origins of Self-Generated Thought. Edited by Kalina Christoff and Kieran C. R. Fox. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780190464745.013.1.

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Functional magnetic resonance imaging (fMRI) has begun to narrow down the neural correlates of self-generated forms of thought, with current evidence pointing toward central roles for the default, frontoparietal, and visual networks. Recent work has linked the arising of thoughts more specifically to default network activity, but the limited temporal resolution of fMRI has precluded more detailed conclusions about where in the brain self-created mental content is generated and how this is achieved. This chapter argues that the unparalleled spatiotemporal resolution of intracranial electrophysiology (iEEG) in human epilepsy patients can begin to provide answers to questions about the specific neural origins of self-generated thought. The chapter reviews the extensive body of literature from iEEG studies over the past few decades and shows that many studies involving passive recording or direct electrical stimulation throughout the brain point to the medial temporal lobe as a key site of thought-generation.
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Furst, Eric M., and Todd M. Squires. Microrheology. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199655205.001.0001.

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We present a comprehensive overview of microrheology, emphasizing the underlying theory, practical aspects of its implementation, and current applications to rheological studies in academic and industrial laboratories. Key methods and techniques are examined, including important considerations to be made with respect to the materials most amenable to microrheological characterization and pitfalls to avoid in measurements and analysis. The fundamental principles of all microrheology experiments are presented, including the nature of colloidal probes and their movement in fluids, soft solids, and viscoelastic materials. Microrheology is divided into two general areas, depending on whether the probe is driven into motion by thermal forces (passive), or by an external force (active). We present the theory and practice of passive microrheology, including an in-depth examination of the Generalized Stokes-Einstein Relation (GSER). We carefully treat the assumptions that must be made for these techniques to work, and what happens when the underlying assumptions are violated. Experimental methods covered in detail include particle tracking microrheology, tracer particle microrheology using dynamic light scattering and diffusing wave spectroscopy, and laser tracking microrheology. Second, we discuss the theory and practice of active microrheology, focusing specifically on the potential and limitations of extending microrheology to measurements of non-linear rheological properties, like yielding and shear-thinning. Practical aspects of magnetic and optical tweezer measurements are preseted. Finally, we highlight important applications of microrheology, including measurements of gelation, degradation, high-throughput rheology, protein solution viscosities, and polymer dynamics.
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Book chapters on the topic "Passive Magnetic Current Limiter"

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Miyauchi, N., H. Nakane, S. Haseyama, and S. Yoshizawa. "A Magnetic Shielding Type Superconducting Fault-Current Limiter." In Advances in Superconductivity XI, 1397–400. Tokyo: Springer Japan, 1999. http://dx.doi.org/10.1007/978-4-431-66874-9_328.

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Onishi, T., S. Yamazaki, and A. Nii. "Current Limiting Characteristics of Magnetic Shield Type Superconducting Fault Current Limiter." In Advances in Superconductivity IX, 1361–64. Tokyo: Springer Japan, 1997. http://dx.doi.org/10.1007/978-4-431-68473-2_166.

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Shi, Chunzhe. "Fault Current Limit (FCL) Technology (Magnetic Valve Controlled Reactor-Type Fault Current Limiter Principle and Simulation)." In Advances in Intelligent and Soft Computing, 135–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27708-5_19.

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Ichikawa, Michiharu, Hiroyuki Kado, and Kunikazu Izumi. "Study On Magnetic Shielding Type Superconducting Fault Current Limiter Using Bi-Sr-Ca-Cu-O Cylinder." In Advances in Superconductivity VI, 1281–84. Tokyo: Springer Japan, 1994. http://dx.doi.org/10.1007/978-4-431-68266-0_290.

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Uchii, Toshiyuki, Yasunobu Yokomizu, and Toshiro Matsumura. "High T c Superconducting Fault Current Limiter with Flux-Lock Reactors and Ac Magnetic Field Coil." In Advances in Superconductivity IX, 1365–68. Tokyo: Springer Japan, 1997. http://dx.doi.org/10.1007/978-4-431-68473-2_167.

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Poljak, Dragan, Mario Cvetković, Vicko Dorić, Ivana Zulim, Zoran Đogaš, Maja Rogić Vidaković, Jens Haueisen, and Khalil El Khamlichi Drissi. "Integral Equation Formulations and Related Numerical Solution Methods in Some Biomedical Applications of Electromagnetic Fields." In Data Analytics in Medicine, 249–67. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1204-3.ch013.

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The paper reviews certain integral equation approaches and related numerical methods used in studies of biomedical applications of electromagnetic fields pertaining to transcranial magnetic stimulation (TMS) and nerve fiber stimulation. TMS is analyzed by solving the set of coupled surface integral equations (SIEs), while the numerical solution of governing equations is carried out via Method of Moments (MoM) scheme. A myelinated nerve fiber, stimulated by a current source, is represented by a straight thin wire antenna. The model is based on the corresponding homogeneous Pocklington integro-differential equation solved by means of the Galerkin Bubnov Indirect Boundary Element Method (GB-IBEM). Some illustrative numerical results for the TMS induced fields and intracellular current distribution along the myelinated nerve fiber (active and passive), respectively, are presented in the paper.
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Conference papers on the topic "Passive Magnetic Current Limiter"

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Santra, Tapan, A. K. Chkraborty, D. Roy, and A. B. Choudhury. "Analysis of passive magnetic fault current limiter using wavelet transform." In 2009 International Conference on Power Systems. IEEE, 2009. http://dx.doi.org/10.1109/icpws.2009.5442670.

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Iwahara, M., S. C. Mukhopadhyay, N. Fujiwara, and S. Yamada. "Development of passive fault current limiter in parallel biasing mode." In IEEE International Magnetics Conference. IEEE, 1999. http://dx.doi.org/10.1109/intmag.1999.837224.

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Das, S., A. B. Choudhury, T. Santra, and T. Sankar Daphadar. "Finite Element Analysis of a Passive Magnetic Fault Current Limiter using Adaptive Meshing." In Michael Faraday IET International Summit 2020 (MFIIS 2020). Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/icp.2021.1038.

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Patwary, Raju, Himadri Sekhar Chatterjee, Debabrata Roy, and A. B. Choudhury. "Fault diagnosis of a passive magnetic fault current limiter using reverse biorthogonal wavelet transform." In 2017 IEEE Calcutta Conference (CALCON). IEEE, 2017. http://dx.doi.org/10.1109/calcon.2017.8280765.

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Kumar Mondal, A., T. Santra, S. Pramanik, and S. Sankar Saha. "A Dual Purpose Passive Magnetic Fault Current Limiter for Obtaining Variable Impedance and Current Suppression at Fault." In Michael Faraday IET International Summit 2020 (MFIIS 2020). Institution of Engineering and Technology, 2021. http://dx.doi.org/10.1049/icp.2021.1059.

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Patwary, Raju, and Pratyush Das. "Harmonics And Interharmonics Estimation Of A Passive Magnetic Fault Current Limiter Using Morlet Wavelet Transform." In National Conference on Advancement of Computing in Engineering Research. Academy & Industry Research Collaboration Center (AIRCC), 2013. http://dx.doi.org/10.5121/csit.2013.3240.

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Patwary, Raju, Sabyasachi Datta, and Soumyadeep Ghosh. "Harmonics and interharmonics estimation of a passive magnetic fault current limiter using Coiflet Wavelet transform." In 2011 International Conference on Communication and Industrial Application (ICCIA). IEEE, 2011. http://dx.doi.org/10.1109/iccinda.2011.6146689.

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Sherman, Christopher, Eli S. Leland, Andrew Pullin, Richard M. White, and Paul K. Wright. "Proximity-Based Passive Current Sensors for Real-Time Monitoring of Power Usage in Low and Mid-Voltage Applications." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11674.

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Traditional monitoring of current flow in power lines involves breaking the circuit for through-the-sensor type monitoring or separating individual wires for around-the-conductor “clamp” metering. Such techniques for measurement are invasive and disruptive for many applications. Using 0.9 cm diameter permanent magnets attached to piezoelectric bimorph elements in conjunction with the fluctuating magnetic fields generated by alternating currents, sensors have been developed that enable in-situ, self-powered measurement of current flow without the need to encircle or disconnect the wire being measured. Whereas previous development [1, 2] of these devices has focused on two-wire applications for low (<600V) voltages, single-wire configurations for higher-voltage (up to 15kV) applications are also considered here. Outputs have been found to be linear through a wide ranges of current (0–200A on 0.6–120V AC), with resolution limited primarily by sensor distance from the target wire (3cm or less from wire edge). Sensitivity studies have been performed on conductors of varying dimensions (18 gauge to 4 gauge) and geometries (single conductor and two-wire) for known sensor placements and current flows. Initial integration has been performed with a wireless radio device to produce a self-contained sensor package 8cm by 10cm by 3cm that can sample data at 2 kHz and transmit results to a base station for further analysis. Initial numerical modeling of the magnetic field gradients around current-carrying wires has been performed to optimize sensor placement. Potential applications include customer (home, business, industry) and distribution grid-level monitoring.
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Wang, Pei-Jen, and Chia-Yuan Chang. "Analysis and Verifications for Meso-Scale Heat Exchanger With Magneto-Hydrodynamic (MHD) Pumps." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41068.

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Electronic devices have been mainly relying on passive heat exchangers to transfer heat away for preventing catastrophic thermal runaway. However, the passive heat exchangers usually provide limited cooling capacity due to spatial limitations of the target systems. In this paper, an active heat exchanging system, based upon MHD pumping principle for driving electrically conducting coolant without utilizing mechanical moving-parts, was studied and experimentally verified. Governing equations of electrically conducting liquids driven by the Lorentz forces were derived by assuming steady state, incompressible and fully developed laminar flow conditions. Furthermore, numerical simulations were conducted with the explicit Finite-Difference Method to evaluate the performance of the heat exchanger. Finally, an experimental apparatus was built for measuring the flow velocity of coolant and the associated total cooling capacity. A significant flow velocity of 1.09 × 102 mm/s at 3 Ampere applied current was observed when the magnetic flux density was kept at 0.4 Tesla. The experimental results concluded that the heat exchanger consumed very low electric power; hence, the cooling system is very promising for applications in micro-fluidic systems.
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Rasolonjanahary, J. L., J. P. Sturgess, E. F. H. Chong, A. E. Baker, and C. L. Sasse. "Design and construction of a magnetic fault current limiter." In 3rd IET International Conference on Power Electronics, Machines and Drives (PEMD 2006). IEE, 2006. http://dx.doi.org/10.1049/cp:20060195.

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