Design, building and testing of a 10 kW superconducting induction heater

Author

Runde, Magne ; Magnusson, Niklas

Author_Institution

SINTEF Energy Res., Trondheim, Norway

Volume

13

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

1612

Lastpage

1615

Abstract

Conventional 50/60 Hz induction heaters for aluminum billets have very large losses. By replacing the copper windings with windings of high-temperature superconducting (HTS) tapes, there is a substantial potential for efficiency improvements, especially if low AC loss HTS tapes become available. To examine the feasibility of using HTS in induction heaters, a first, small-scale working model has been designed and built. The induction coil is made of 24 double pancake coils of Bi-2223/Ag tapes. In the initial test, a workpiece of aluminum situated in the warm bore of the coil was heated up to 300°C.

Keywords

aluminium; high-temperature superconductors; induction heating; process heating; superconducting coils; 10 kW; 300 degC; Al; Al billets; Bi-2223/Ag tapes; HTS tapes; double pancake coils; high-temperature superconducting tapes; superconducting coils; superconducting induction heater; Aluminum; Billets; Buildings; Copper; Heating; High temperature superconductors; Induction generators; Superconducting coils; Superconducting films; Testing;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2003.812806

Filename

1211911