SIMULATION OF ELECTROMAGNETIC AND THERMAL PROCESSES IN SUPERCONDUCTING SYSTEMS
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2012, Vol 59, Issue 259
Abstract
This article presents a description and method of simulation of electromagnetic and thermal processes in superconducting tapes and bulk samples. Peculiarity phenomena in superconductors, resulting i.a. in a rapid, nonlinear changes in electrical and thermal properties, complicates the description of the model. The complex process of heat transfer to the coolant is an additional difficulty. The implementation of two-dimensional superconductor model, allowing dynamic analysis of electromagnetic and associated thermal processes, was the objective of this work. The nature of the transition to normal state was described by the E-J power law. A magnetic field H was assumed as the dependent variable in the model. This assumption allows the calculation of the electric field E from the E-J dependence and the value of magnetic field H, simplifies the formulation of boundary conditions as well as reduces the higher-order derivatives and the computation time. The additional feature of the presented model is the taking into account the nonlinear heat transfer from superconductor to the coolant and rapid changes in heat transfer coefficient h, resulting from the boiling crisis.
Authors and Affiliations
Marcin LEBIODA, Jacek RYMASZEWSKI
Keywords
Related Articles
- EP ID EP187673
- DOI -
- Views 78
- Downloads 0
A 500 W VAWT WIND POWER MICROPLANT
The paper presents a small wind power plant with vertical axis (VAWT). This power plant is composed of: a wind turbine, a multi-pole generator and circuit charging the batteries. The investigation was conducted both in t...
PRZETWORNICA STATYCZNA Z TRZYPOZIOMOWYMI PRZEKSZTAŁTNIKAMI TYPU NPC DO ZASTOSOWAŃ TRAKCYJNYCH – SYMULACJE I WYNIKI EKSPERYMENTALNE
W artykule przedstawiono przetwornicę statyczną z izolacją transformatorową z wykorzystaniem struktur wielopoziomowych typu NPC (ang. Neutral Point Clamped). Zaprezentowano wybrane wyniki badań symulacyjnych i laboratory...
TECHNIKI SZYBKIEGO PROTOTYPOWANIA ELEKTROMECHANICZNYCH PRZETWORNIKÓW ENERGII
Projektowania elektromechanicznych przetworników energii elektrycznej obejmuje trzy etapy: analizę teoretyczną, modelowanie i badania symulacyjne oraz implementację i badania w warunkach laboratoryjnych. Współpraca układ...
PHOTOVOLTAIC CELLS OF UNCONVENTIONAL SHAPE
Applied in practice, silicon photovoltaic panels are combined from individual cells, built in the shape of a rectangle or square, due to the technology for the production of the basic materials - monocrystalline or polyc...
ANALYSIS DIELECTRIC RELAXATION IN NANOKOPOITE PET/CNT
The paper presents a stady by the FDS (Frequency Domain Spectroscopy) composite PET – polyethylene terephthalate and PEE – poly (ester-ether) with additives MWCNT – polyhedral subjects fluorinated carbon nanotubes modifi...