全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

Application of Duhamel's theorem in the thermal field analysis of a DC cable with two layers of insulation

DOI: 10.2478/v10175-010-0109-0

Keywords: analytical-numerical methods of the field theory, transient heat flow, current transmission

Full-Text   Cite this paper   Add to My Lib

Abstract:

In the paper we presented an asymptotic method of determination of the transient thermal field in a three-zone cable (i.e. in a core and in two layers of insulation). A basis of our method was decomposition of the system. We considered separately the region of the core, which we modelled by a concentrated element of the first order. In turn, we treated the two-zone region of insulation as the system of distributed parameters. In the analysis we applied Duhamel's theorem and the method of separation of variables. Eigenvalues of the boundary-initial problem and coefficients of eigenfunctions we determined numerically. In the result we obtained spatial-temporal heat-up curves of the investigated cable. Our results we presented in a graphic form.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133