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Conference Papers Year : 2023

Opportunity of DC technology for powering pipe-in-pipe heating system

Zakaria Lettifi
  • Function : Author
  • PersonId : 1317154
Léo Sudriès
  • Function : Author
  • PersonId : 1317155
Christian Geertsen
  • Function : Author
  • PersonId : 1317156
Emmanuel Perez
  • Function : Author
  • PersonId : 1317157
Laurent Berquez
Gilbert Teyssedre

Abstract

The risks associated to a change in technology for heating system in pipe-in-pipe flowline technologies is evaluated. We show that the field distribution under DC stress is markedly different from that in case of AC stress owing to the high electrical conductivity of the splice joint insulation relatively to cable insulation. Model structures were used to investigate multilayer samples. Safe conditions regarding space charge accumulation were addressed. Finally, the field distribution in real joints was estimated considering the actual geometry. All in all, the results show that the cables can safely be operated under DC with at least same voltage as under AC stress.
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Dates and versions

hal-04310683 , version 1 (27-11-2023)

Identifiers

  • HAL Id : hal-04310683 , version 1

Cite

Duvan Mendoza Lopez, Zakaria Lettifi, Léo Sudriès, Christian Geertsen, Emmanuel Perez, et al.. Opportunity of DC technology for powering pipe-in-pipe heating system. 11th International Conference on Insulated Power Cables, Jun 2023, Lyon, France. ⟨hal-04310683⟩
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