Search Results - "Bumby, C. W"

Origin of the DC output voltage from a high-Tc superconducting dynamo by Mataira, R. C., Ainslie, M. D., Badcock, R. A., Bumby, C. W.

“…Despite their proven ability to output DC currents of >100 A, the physical mechanism which underpins the operation of a high-Tc superconducting (HTS) dynamo is…”
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Modeling HTS non-insulated coils: A comparison between finite-element and distributed network models by Venuturumilli, S., Mataira, R. C., Taylor, R. W., Gonzales, J. T., Bumby, C. W.

“…High-temperature superconducting (HTS) non-insulated (NI) coils have the unique capability to bypass current through conductive turn-to-turn contacts,…”
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Dynamic resistance of a high- Tc superconducting flux pump by Jiang, Zhenan, Hamilton, K., Amemiya, Naoyuki, Badcock, R. A., Bumby, C. W.

“…Superconducting flux pumps enable large currents to be injected into a superconducting circuit, without the requirement for thermally conducting current leads…”
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Critical Current Behavior of HTS Roebel Cable Under Tensile Stress by Bumby, C. W., Badcock, R. A., Long, N. J.

“…High-power high-temperature superconducting (HTS) machines and devices require the use of high-current cables such as an HTS Roebel cable. An HTS Roebel cable…”
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Electrical Properties of Composites of Polystyrene and Multi-Walled Carbon Nanotubes by Kažukauskas, V., Kalendra, V., Vainorius, N., Bumby, C. W., Ludbrook, B. M., Kaiser, A. B.

“…The dependencies of electrical conductivity on the electrical field and temperature of high-resistivity polystyrene/carbon nanotube (CNT) composites were…”
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Anomalous open-circuit voltage from a high-T c superconducting dynamo by Bumby, C. W., Jiang, Zhenan, Storey, J. G., Pantoja, A. E., Badcock, R. A.

“…We report on the behavior of a high-T c superconducting (HTS) homopolar dynamo which outputs a DC open-circuit voltage when the stator is in the…”
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Effective circuit modelling and experimental realization of an ultra-compact self-rectifier flux pump by Mallett, B. P. P, Venuturumilli, S, Clarke, J, Leuw, B, Rice, J. H. P, Moseley, D. A, Bumby, C. W, Geng, J, Badcock, R. A

“…This paper presents experimental and modelling results of an ultra-compact self-rectifier flux pump energizing a superconducting coil. The device fits inside a…”
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Transport current measurement of I(T, B,\theta) and n(T, B,\theta) for a bulk REBCO superconductor by Taylor, R. W., Pantoja, A. E., Hlasek, T., Plechacek, J., Weijers, H. W., Ainslie, M. D., Bumby, C. W.

“…Bulk rare-earth barium cuprate (REBCO) high-temperature superconductors are attractive for many electromagnetic applications due to their ability to support…”
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Temperature dependent behavior of a kA-class superconducting flux pump with a continuous cylindrical stator by Venuturumilli, S., Francis, A. C., Pantoja, A. E., Taylor, R. W., Brooks, J. M., Moseley, D. A., Badcock, R. A., Bumby, C. W.

“…A high temperature superconducting (HTS) dynamo is a type of device known as a “flux pump” that can inject DC into a closed superconducting circuit. Here, we…”
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Dynamic Resistance Measurement of a Four-Tape YBCO Stack in a Perpendicular Magnetic Field by Jiang, Z., Zhou, W., Bumby, C. W., Staines, M., Li, Q., Badcock, R. A., Long, N. J., Fang, J.

“…Dynamic resistance occurs when HTS (high-temperature superconductor) coated conductors carry dc current under ac magnetic field. This dissipative effect can…”
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Transport Current Measurement of [Formula Omitted] and [Formula Omitted] for a Bulk REBCO Superconductor by Taylor, R W, Pantoja, A E, Hlasek, T, Plechacek, J, Weijers, H W, Ainslie, M D, Bumby, C W

“…Bulk rare-earth barium cuprate (REBCO) high-temperature superconductors are attractive for many electromagnetic applications due to their ability to support…”
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Electrical, magnetic and thermal circuit modelling of a superconducting half-wave transformer rectifier flux pump using Simulink by Francis, A.C., Venuturumilli, S., Moseley, D.A., Claridge, S., Leuw, B., Badcock, R.A., Bumby, C.W.

“…Superconducting flux pumps (FP) are capable of supplying superconducting circuits with high currents by additively supplying current over a number of cycles…”
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Anomalous open-circuit voltage from a high-Tc superconducting dynamo by Bumby, C W, Jiang Zhenan, Storey, J G, Pantoja, A E, Badcock, R A

“…We report on the behavior of a high-Tc superconducting (HTS) homopolar dynamo which outputs a DC open-circuit voltage when the stator is in the superconducting…”
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Flux penetration of an HTS coated-conductor tape by an approaching permanent magnet by Taylor, R.W., Booth, T., Ainslie, M.D., Weijers, H.W., Badcock, R.A., Bumby, C.W.

“…Interactions between inhomogeneous magnetic fields and a superconductor lie at the heart of several high-temperature superconducting (HTS) devices. An example…”
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FEM and performance analysis of 10 kW HTS generator with flux pump excitation by Kulkarni, R., Prasad, K., Lie, T. T., Badcock, R. A., Bumby, C. W., Sung, H. J.

“…High Temperature Superconductor (HTS) based rotating electrical machines offer the advantages of lighter weight, smaller size, better efficiency and lower…”
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An investigation of GaSb/GaAs thermophotovoltaic cells by Fan, Q., Lim, A.L.C., Conibeer, G.J., Bumby, C.W., Shields, P.A., Nicholas, R.J., Haywood, S.K.

“…The effect of growth conditions on the electrical and optical properties of p-GaSb/n-GaAs junctions grown by MOVPE has been studied. Low growth temperature…”
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InAs passivated GaSb thermo-photovoltaic cells on a GaAs substrate grown by MOVPE by Bumby, C. W., Fan, Q., Shields, P. A., Nicholas, R. J., Haywood, S. K., May, L.

“…The high cost of Gallium Antimonide (GaSb) substrates offers a major obstacle to the commercial uptake of thermophotovoltaic technology. We present results on…”
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InAs passivated GaSb thermophotovoltaic cells on a GaAs substrate grown by MOVPE by BUMBY, C. W, FAN, Q, SHIELDS, P. A, NICHOLAS, R. J, HAYWOOD, S. K, MAY, L

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