Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel

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    • Capacity of Bolted T-stub Connections Between Different Materials Subjected to Tension and Thermal Load 

      Ydstebø, Kristian (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-14)
      The purpose of this thesis is to study the behaviour of bolted T-stub connections of different materials subjected to tension and thermal load. In the Eurocode, NS-EN 1993-1-8 [1], there are given rules and guidelines for ...

    • Capacity of Concrete Structures with Corroded Reinforcement and Prestressing Tendons 

      Sigvaldsen, Marie; Ersdal, Gerhard; Markeset, Gro; Samarakoon, Mudiyansele Samindi Manjula K; Langeteig, Magne (Peer reviewed; Journal article, 2021)
      The main degradation mechanism for concrete structures is corrosion of the reinforcement and prestressing tendons. Management of structures with such degradation requires detailed understanding of their remaining strength ...

    • Carbon dioxide application for Enhanced Oil Recovery in conditions of the Caspian Sea shelf 

      Vyrodov, Alexandr (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-06-12)
      CO2 injection into the hydrocarbon-bearing reservoirs is considered as one of the most promising technologies for enhanced oil recovery. This technology has gained significant attention due to its economic benefits as there ...

    • Cascade analysis of a floating wind turbine rotor 

      Eliassen, Lene; Jakobsen, Jasna B.; Knauer, Andreas; Nielsen, Finn Gunnar (Journal article; Peer reviewed, 2014)
      Mounting a wind turbine on a floating foundation introduces more complexity to the aerodynamic loading. The floater motion contains a wide range of frequencies. To study some of the basic dynamic load effect on the ...

    • A case study of offshore wind turbine positioning optimization methodology using a novel multi-stage approach 

      Xu, Xiaosen; Du, Lin; Zhang, Zhongyu; Gu, Jiayang; Xing, Yihan; Gaidai, Oleg; Dou, Peng (Peer reviewed; Journal article, 2022)
      This investigation maximize the annual energy production (AEP) of a wind farm’s layout at a specific site using a novel multi-stage approach. The downstream wind turbines’ energy production decreases due to the reduced ...

    • Case Study on Lean Manufacturing 

      Alex Diter Esquivel Tabares (Master thesis, 2022)
      Technological companies are struggling to keep competing in the global market. Customers have higher expectations now that an efficient and high-quality product is no longer sufficient. For example, Laerdal has to offer ...

    • A Case Study on Topology Optimized Design for Additive Manufacturing 

      Gebisa, Aboma Wagari; Lemu, Hirpa G. (Journal article; Peer reviewed, 2017-12)
      Topology optimization is an optimization method that employs mathematical tools to optimize material distribution in a part to be designed. Earlier developments of topology optimization considered conventional manufacturing ...

    • Case study on topology optimized design for additive manufacturing 

      Lemu, Hirpa G.; Aliyi, A.M. (Peer reviewed; Journal article, 2019-10)
      Additive Manufacturing (AM), also known as rapid prototyping, rapid manufacturing, layer manufacturing and three-dimensional printing, represents one of the most promising aspects of manufacturing for highly complex ...

    • A case study on use of 3D scanning for reverse engineering and quality control 

      Lemu, Hirpa Gelgele; Helle, Robin H. (Peer reviewed; Journal article, 2021-03)
      Reverse engineering is needed to acquire knowledge of design that is lost, obsolete or withheld. Techniques have evolved from manual measurements, to utilizing the possibilities that lie within 3D scanning technologies. ...

    • Case Study: Root Cause Analysis at Altus Intervention 

      Steinnes Ivesdal, Jonas (Bachelor thesis, 2021)
      This thesis carries out a case study of Altus Interventions Root Cause Analysis, focusing on the reporting program Synergi and the methodology surrounding it. The central thesis objective is to map the current methodology ...

    • Cement bond evaluation 

      Østerbø, Kristian (Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-15)
      As part of completing an oil well strings of casing are inserted into a pre-drilled hole and cemented in place. The twofold purpose of the cement is to provide casing support and hydraulically isolate the annular space to ...

    • CFD analysis of gas-particle flow in a scaled circulating fluidized bed 

      Engen, Thomas (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06)
      The hydrodynamics of gas-particle flow in a Circulating Fluidized Bed (CFB) system have been studied computationally. The numerical predictions are evaluated against experimental testing done on a 1/9th scale cold CFB ...

    • CFD Analysis of Internal Pipe Flows 

      Liestyarini, Utari Cendhy (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-15)
      The process piping in the refinery plant does not always have straight pipe geometry. The configuration of these pipelines are usually zigzag or snake-like. The pipe fittings or joints including elbow pipes, blind-tee pipes, ...

    • CFD analysis of subsea pipelines and risers. 

      Ivantsiv Alexey (Master thesis, 2021)
      In the master's thesis, an analysis of promising shelf areas in Russia is given for the need to introduce riser systems. The main risers types used in the oil and gas industry are described. The global tasks in work are ...

    • CFD analysis of temperature development due to flow restriction in pipeline 

      Trydal, Jakob (Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-05-29)
      If the pressure difference in a pipe, up- and downstream of a restriction orifice, is above a critical value, the flow becomes choked and an under-expanded jet occurs. For very large pressure differences, the gas experiences ...

    • CFD Analysis of Topographically Induced Turbulence and its Effect on a Fatigue Life Analysis of a Wind Turbine Yaw Gear 

      Halvorsen, Eirik (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)
      This master's thesis describes a case study of a turbine farm, where the topography and its effect on turbulence is compared to a fatigue life analysis.

    • CFD investigation of blind-tee effects on flow mixing mechanism in subsea pipelines 

      Han, Fenghui; Liu, Yuxiang; Ong, Muk Chen; Yin, Guang; Li, Wenhua; Wang, Zhe (Peer reviewed; Journal article, 2022)
      Blind tees are widely used in subsea pipelines to enhance the mixing conditions of oil and gas products, but their structural design still relies on experience. In this paper, a series of numerical investigations have been ...

    • CFD investigation of flow through an orifice inside a pipe 

      Nitter, Bjørnar (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-14)
      Flow measurement is found in a large variety of industries and for different types of fluids. Orifice flow meters are widely used for measuring the flow rate in pipelines due to its small size in the piping system and ...

    • CFD investigation of fluid flow within elbow pipes 

      Taibi, Ridoan (Master thesis, 2021)
      Elbow pipes are crucial parts of many fluid transport systems, including ones used in the oil and gas industry. The curved shape of such pipes induces centrifugal forces on the internal flow, ultimately affecting the flow ...

    • CFD Investigation on Hydrodynamic Resistance of a Novel Subsea Shuttle Tanker 

      Xing, Yihan; Janocha, Marek Jan; Yin, Guang; Ong, Muk Chen (Peer reviewed; Journal article, 2021-12)
      The Subsea Shuttle Tanker (SST) was proposed by Equinor as an alternative to subsea pipelines and surface tankers for the transportation of liquid carbon dioxide (CO2) from existing offshore/land facilities to marginal ...