Blar i NTNU Open på forfatter "Holden, Christian"
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Pose Estimation of Aquaculture Crane Using IMUs
Ljevo, Irfan (Master thesis, 2022)Et av norges største eksport varer er laks, derfor er akvakultur sektoren en av de mest betydelige sektorene i landet. Det vil derfor være avgjørende å skape endringer innenfor dette området for å oppnå størst mulig suksess, ... -
Produced water treatment using hydrocyclones - Theoretical and experimental studies of novel control schemes
Vallabhan, Mishiga K.G. (Doctoral theses at NTNU;2022:136, Doctoral thesis, 2022)Produced-water is a non-lucrative by-product of oil and gas production, and the quantity increases as the field ages. Produced-water is either discharged into the sea or reinjected into the field to enhance pressure. As ... -
Robot Telemanipulation for Remote Maintenance
Kahin, Mustafe (Master thesis, 2022)Denne masteroppgaven undersøker muligheten for å utføre et filterskifte ved bruk av teleoperasjon. Teleoperasjon blir ofte referert til som fjernstyring av en robot, og er for det meste orientert mot inspeksjon, reperasjon ... -
Robust adaptive backstepping DP control of ROVs
Ohrem, Sveinung Johan; Amundsen, Herman Biørn; Caharija, Walter; Holden, Christian (Peer reviewed; Journal article, 2022)Dynamic positioning is an important control feature for an underwater remotely operated vehicle. This paper presents a nonlinear dynamic positioning controller suited for application to vehicles with model uncertainties, ... -
Simulating the Dynamics of a Chain Suspended Sub-sea Load Using Modified Components from the Modelica MultiBody Library
Viswanathan, Savin; Holden, Christian (Chapter, 2020)In this paper, the philosophy of the lumped-mass approach is adopted in specifying components so as to enable the Modelica compiler to formulate equations governing the motion of a chain-suspended sub-sea load, subjected ... -
Simultaneous Control of Crane Tip Position and Crane Load Oscillation Dampening on Shipboard Cranes
Gregersen, Even Rise (Master thesis, 2023)For operasjoner i akvakultur og offshore industriene er skipskraner til en stor grad tatt i bruk. Bølger har evnene til å indusere forstyrrelser fra skipet inn i kranen og vind påvirker kranlasten. Disse forstyrrelsene kan ... -
Six-Axis Robot for Autonomous Filter Change of TEG Gas Dehydration Unit
Pettersen, Mats Aamodt (Master thesis, 2023)Denne oppgaven presenterer en detaljert analyse av filterbytteoperasjonen for en trietylenglykolenhet, en prosess som er integrert i gassproduksjon, gjennom linsen til et seks-akset industrielt robot. Basert på tidligere ... -
Soft Sensors and Sensor Fusion for a Hydrocyclone Laboratory
Tuften, Hans Olav (Master thesis, 2021)Compact Separation Laboratory ved Norsk Hydroteknisk Laboratorium blir brukt for å gjøre eksperimenter med en hydrosyklon brukt for å fjerne olje fra vann. Systemet er nylig konstruert og mangler noen sensorer, og kan ha ... -
State and parameter estimation of a gas-liquid cylindrical cyclone
Kristoffersen, Torstein Thode; Holden, Christian (Chapter, 2018)The development and production of hydrocarbons from oil and gas discoveries in deep water require costefficient compact separation technology. However, the small operational volume of compact separators make them highly ... -
Subsea Compact Separation and Wet Gas Compression: Modelling, Estimation and Control
Kristoffersen, Torstein Thode (Doctoral theses at NTNU;2019:61, Doctoral thesis, 2019) -
Subsea Gas Boosting Laboratory: Design and Construction
Flatlandsmo, Eivind; Bordal, Mari Brænden; Medby, John-Haakon Krøke (Master thesis, 2016)Enhanced oil recovery has been a major focus area for the oil and gas industry over the past years. The need for more and better recovery methods has increased as many of the major oil and gas fields are entering the last ... -
Telemanipulation for Remote Maintenance.
Suvalija, Irfan (Master thesis, 2022)Denne oppgaven vil hovedsakelig fokusere på et filterbytte ved hjelp av en KR16 robotmanipulator. Denne manipulatoren vil utføre et enkel plukk og plasser, og dette vil bli utført gjennom kommandoer. Disse kommandoene vil ... -
The Compact Separation Laboratory - Design and Engineering of Phase 2
Hjørnevik, Daniel Børsheim; Fotland, Sindre Nordås (Master thesis, 2017)Increased oil and gas production over the past decades have claimed most of the easily accessible offshore reservoirs. Developing new reservoirs in remote environments and at large water depths are challenging for topside ... -
Towards the Development of an Ocean Engineering Library for OpenModelica
Viswanathan, Savin; Holden, Christian (Chapter, 2019)The development of component models to populate a proposed OpenModelica standard library for the ocean engineering domain is described through the process of modelling the response of catenary-moored wave-energy converters ...