To main content

Martin Høyer-Hansen

Research Scientist

Martin Høyer-Hansen

Research Scientist

Martin Høyer-Hansen
Phone: 906 46 597
Email:
Department: Electric Power Technology
Office: Trondheim

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/1917553/

This paper presents results from AC corrosion tests on 25Cr duplex and cathodically protected carbon steel. The results show that the corrosion rate is independent of transfer current density (0-200 A/m2) and power frequency (50-200 Hz) on cathodically protected carbon steel. On the anodes...

Year 2021
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1638241/

Offshore umbilical cables often include both power cables and elements such as metallic tubes and signal cables. It was concluded from a recent failure of stainless tubes that AC corrosion was the failure cause. This paper describes how AC corrosion can lead to tube failure if a puncture exists in...

Authors Bjørn Gustavsen Martin Høyer-Hansen Marius Hatlo Steinar Midttveit
Year 2019
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1594493/

This paper presents results from AC corrosion tests on cathodically protected steel flowlines. An important factor, which has an increased focus in the industry, is to understand AC corrosion and how it can be mitigated. Tests have been carried out at 100 and 200 Hz, where no current transfer design...

Authors Kristian Solheim Thinn Martin Høyer-Hansen Magnus Hurlen Larsen Øyvind Iversen
Year 2018
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1640218/

In Direct Electrical Heating (DEH) systems, the pipeline of subsea oil productions conducts a large AC current to generate heat. To further improve the effectiveness of the DEH, higher operating frequency is preferable. The electrical parameters of the carbon steel pipe are critical for a DEH system...

Authors Anyuan Chen Arne Nysveen Martin Høyer-Hansen Jens Kristian Lervik
Year 2018
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1640224/

In direct electrical heating system (DEHs), which is developed for subsea process to safeguard well stream through pipelines to topside process platform or shore, the production pipeline is also acts as an active conductor conducting large AC current to generate heat. The heating source is...

Authors Anyuan Chen Arne Nysveen Jens Kristian Lervik Martin Høyer-Hansen
Year 2018
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1480948/

A development program to further increase the competitiveness of the direct electrical heating technology has been initiated. By increasing the power frequency from 50/60 to 100-200 Hz, less current is needed to develop the same heat generation in the pipe. A test program is running with the purpose...

Year 2017
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1410311/

Cable-series impedance modeling is widely applied in electromagnetic transients simulations and power-loss calculations. The calculations are usually performed in a 2-D frame using the finite-element method or alternative approaches, such as MoM-SO, thereby losing the 3-D effects imposed by twisting...

Authors Bjørn Gustavsen Martin Høyer-Hansen Piero Triverio Utkarsh R. Patel
Year 2016
Type Academic article
Publication
https://www.sintef.no/en/publications/publication/1258128/

Finite element computations are presented, studying the effect of cross-talk between cable elements of different lay lengths. 3D computations with twisted conductors and screens are compared to the more traditional 2D crosssection approaches. Current flow in screens and impedances of cables are...

Year 2016
Type Academic chapter/article/Conference paper
Publication
https://www.sintef.no/en/publications/publication/1369194/

Direct electrical heating is a qualified method for flow assurance in coated oil and gas flowlines. A concern is ac corrosion on connected templates caused by stray currents from the DEH system. This has prevented DEH from being installed on flowlines with in-line templates and restricted...

Year 2016
Type Academic chapter/article/Conference paper