Cristin-resultat-ID: 1038612
Sist endret: 17. februar 2014, 11:03
NVI-rapporteringsår: 2013
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2013

Flow Assurance by Electrical Heating of Long Pipelines

Bidragsytere:
  • Jens Kristian Lervik
  • Harald Kulbotten og
  • Arne Nysveen

Bok

Proceedings of The 23rd International Ocean and Polar Engineering Conference (ISOPE 2013)
ISBN:
  • 978-1-880653-99-9

Utgiver

International Society of Offshore & Polar Engineers
NVI-nivå 1

Serie

ISOPE - International Offshore and Polar Engineering Conference. Proceedings
ISSN 1098-6189
e-ISSN 1555-1792
NVI-nivå 1

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2013
Volum: 4
Hefte: 1
Sider: 113 - 117
ISBN:
  • 978-1-880653-99-9

Klassifisering

Fagfelt (NPI)

Fagfelt: Konstruksjonsfag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Flow Assurance by Electrical Heating of Long Pipelines

Sammendrag

by electrical heating. Presently 42 km is the longest pipeline supplied with DEH (Direct Electrical Heating). The main limiting factor is the power cables operational voltage, which limits the heated length to approximately 60 km depending on heating requirements. Increasing the voltage level is therefore required and this needs further qualification work. However, the variations of the heat input to the pipeline versus distance will be more pronounced with increasing pipeline length. This is a disadvantage that may limit the feasible length to around 100 km. Hence, heating above 100 km as a continuous heated length will be far beyond any experiences at the moment. In order to avoid comprehensive verification issues it is proposed to design the electrical heating system as a sectioned heating system. I.e. the pipeline will be heated from a power supply system feeding a number of sections. The sections can be fed by separate power cables to each section or each section can be galvanically separated by a subsea transformer and fed from a common power cable. If the first section is powered from shore, which may be the case for Arctic regions, an alternative heating system to DEH can be selected to avoid problems related to grounding and stray currents. Alternatives such as induction heating (IHS) and pipe in pipe (PiP) heating systems are considered. For Arctic regions the landfall part may need special measure for protection against icebergs.

Bidragsytere

Jens Kristian Lervik

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS

Harald Kulbotten

  • Tilknyttet:
    Forfatter
    ved Elkraftteknologi ved SINTEF Energi AS
Aktiv cristin-person

Arne Nysveen

  • Tilknyttet:
    Forfatter
    ved Institutt for elektrisk energi ved Norges teknisk-naturvitenskapelige universitet
1 - 3 av 3

Resultatet er en del av Resultatet er en del av

Proceedings of The 23rd International Ocean and Polar Engineering Conference (ISOPE 2013).

Chung, Jim S.; Langen, Ivar; Kokkinis, Ted; Wang, Alan M.. 2013, International Society of Offshore & Polar Engineers. EXXON, USA, CNOOC, UISVitenskapelig antologi/Konferanseserie
1 - 1 av 1