Thermal modeling of aluminum electrolytic capacitors

Author

Parler, S.G., Jr.

Author_Institution

Cornell Dubilier, Liberty, SC

Volume

4

fYear

1999

fDate

1999

Firstpage

2418

Abstract

A comprehensive thermal model for screw-terminal aluminum electrolytic capacitors is developed. The test methodology and data upon which the model is based are discussed. Exact one-dimensional solutions, multi-dimensional heat equations and finite-element analysis (FEA) model simulation results are presented. The effects of conduction, heat sinking, natural (free) convection, forced convection and heat radiation are quantified and compared. Complex issues, such as anisotropism and multi-phase heat transfer, are discussed. A comparison of model results to test data is presented. Varying capacitor construction techniques are evaluated

Keywords

aluminium; electrolytic capacitors; finite element analysis; heat sinks; heat transfer; temperature distribution; thermal analysis; windings; Al; anisotropism; conduction; construction techniques; finite-element analysis; forced convection; free convection; heat radiation; heat sinking; model simulation results; multi-dimensional heat equations; multi-phase heat transfer; natural convection; one-dimensional solutions; screw-terminal aluminium electrolytic capacitors; test methodology; thermal modelling; Aluminum; Anisotropic magnetoresistance; Anodes; Capacitors; Cathodes; Heat transfer; Temperature; Testing; Thermal conductivity; Thermal resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.799180

Filename

799180