Dynamic thermal analysis of underground medium power cables using thermal impedance, time constant distribution and structure function

The thermal behavior of a laboratory model for an underground cable has been investigated experimentally. Temperatures are recorded as a function of time so that the dynamic thermal properties could be investigated. The results are represented by thermal impedances. Two new representations, the ther...

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Bibliographic Details
Published in:Applied thermal engineering 2013-10, Vol.60 (1-2), p.256-260
Main Authors: Chatziathanasiou, Vasilis, Chatzipanagiotou, Panagiotis, Papagiannopoulos, Ioannis, De Mey, Gilbert, Więcek, Boguslaw
Format: Article
Language:English
Subjects:
Applied sciences
Differential structure function
Dynamic tests
Dynamic thermal analysis
Dynamics
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Heat transfer
Mathematical analysis
Mathematical models
Power cables
Representations
Structure function
Theoretical studies. Data and constants. Metering
Thermal impedance
Time constant
Underground cables
Underground power cables
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Summary:The thermal behavior of a laboratory model for an underground cable has been investigated experimentally. Temperatures are recorded as a function of time so that the dynamic thermal properties could be investigated. The results are represented by thermal impedances. Two new representations, the thermal time constant distribution and the structure functions, will be introduced as well. It will be shown that with the help of a simple analytical model a lot of new information can be gained. •Investigation of dynamic thermal behavior experimentally and theoretically.•Measurement of thermal impedance.•Evaluation of time constant spectrum and structure function.•Comparison between theoretical analysis and measurements.
ISSN:1359-4311
DOI:10.1016/j.applthermaleng.2013.07.009