Evaluation of simplified heat transport for power cables in pipes
Chapter, Peer reviewed
Published version
Permanent lenke
https://hdl.handle.net/11250/3121827Utgivelsesdato
2023Metadata
Vis full innførselSamlinger
- Publikasjoner fra CRIStin - SINTEF Energi [1614]
- SINTEF Energi [1731]
Originalversjon
Jicable'23 - 11th International Conference on Power Insulated Cables, Lyon - France 18-22 June 2023 : proceedingsSammendrag
Power cables in air- or water-filled pipes are the thermal bottleneck in many installations. Some parts of the industry reduce the complexity of their numerical models by combining conduction, convection, and surface-surface radiation into an effective thermal conductivity by formulas and constants from IEC 60287. In this work, case studies show that such simplification can become too inaccurate for air-filled pipes. The simplification can be used as an estimate for some engineering purposes in water-filled pipes. A brief review of the heat transfer equations shows that IEC 60287 thermal resistance does not accurately represent the actual thermal resistance T4'. KEYWORDS Power cables; ampacity calculations; cables in pipes; finite element analysis; IEC 60287. Evaluation of simplified heat transport for power cables in pipes