Recent additions

  • Study of Ice Accretion on Horizontal Axis Wind Turbine Blade using 2D and 3D Numerical Approach 

    Jin, Jia Yi; Virk, Muhammad Shakeel; Qin, hu; Jiang, Xingliang (Journal article; Tidsskriftartikkel; Peer reviewed, 2020)
    In order to optimize the wind turbine operation in ice prone cold regions, it is important to better understand the ice accretion process and how it affects the wind turbine performance. In this paper, Computational Fluid Dynamics (CFD) based 2D and 3D numerical techniques are used to simulate the airflow/droplet behaviour and resultant ice accretion on a 300 kW wind ...
  • Study of Wind Flow Angle and Velocity on Ice Accretion of Transmission Line Composite Insulators 

    Huang, Yafei; Virk, Muhammad Shakeel; Xingliang, Jiang (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-18)
    Ice accretion on insulators in cold regions is a serious and inevitable problem for power transmission lines, which may cause over-load and icing flashover accidents and can lead to wide power outage. In this research work, multiphase numerical simulations are carried out to investigate the effect of wind flow angle & velocity on the ice accretion of transmission line composite insulators. To verify ...
  • A Stochastic Network Design Problem for Hazardous Waste Management 

    Yu, Hao; Sun, Xu; Solvang, Wei Deng; Laporte, Gilbert; Lee, Carman K M (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-05)
    Hazardous waste management is of paramount importance due to the potential threats posed to the environment and local residents. The design of a hazardous waste management system involves several important decisions, i.e., the determination of the locations and sizes of treatment, recycling and disposal facilities, and organizing the transportation of hazardous waste among different facilities. In ...
  • A Co-Scheduling Problem of Ship Lift and Ship Lock at the Three Gorges Dam 

    Zhao, Xu; Lin, Qianjun; Yu, Hao (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-16)
    Due to the unprecedentedly increasing demands of waterway transportation on the Yangtze River during the latest years, traffic congestion at the Three Gorges Dam (TGD) has becoming a serious problem. In busiest seasons, a vessel may need to wait up to 3 days for passing the TGD via the ship lift or the five-stage ship lock. In order to improve the navigation efficiency and the utilization of passing ...
  • Transformation in manufacturer in the era of "Made in China 2025" 

    Li, Xuancheng (Master thesis; Mastergradsoppgave, 2019-06-07)
    China’s state council has unveiled a ten-year national plan, Made in China 2025, designed to transform China from a manufacturing giant into a world manufacturing power. Of all the projects includes in the “Made in China 2025” plan, intelligent and automated manufacturing is crucial. It is based on concepts i.e., internet of things, cloud computing, and big data. These technologies will be involved ...
  • Development of Downhole Control Valve 

    Zakaria, Hassan (Master thesis; Mastergradsoppgave, 2018-05-31)
    Designing for downhole environment is a challenging process. High pressure and temperature are the main well conditions that effect the design decisions and the tool geometry. Also, the well fluids can obtain high concentration of corrosive content such H2S acid that plays major role in material selection. The intention of this study is to develop Downhole Control Valve that can be connected to ...
  • A Fuzzy-Stochastic Multi-Objective Model for Sustainable Planning of a Closed-Loop Supply Chain Considering Mixed Uncertainty and Network Flexibility 

    Yu, Hao; Solvang, Wei Deng (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-11)
    Closed-loop supply chain network design (CLSCND) has been increasingly spotlighted over the latest decade. The focus has been given to maximize the economic performance, resource utilization and sustainability through incorporating a holistic decision-making on both forward and reverse logistics. In this paper, a new fuzzy-stochastic multi-objective mathematical model is formulated for sustainable ...
  • A New Look at the Single Ladder Problem (SLP) via Integer Parametric Solutions to the Corresponding Quartic Equation 

    Høibakk, Ralph; Lukkassen, Dag; Meidell, Annette; Persson, Lars Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-18)
    The aim is to put new light on the single ladder problem (SLP). Some new methods for finding complete integer solutions to the corresponding quartic equation z 4 −2L z 3 +( L 2 − a 2 − b 2 ) z 2 +2L a 2 z− L 2 a 2 =0 z4−2Lz3+(L2−a2−b2)z2+2La2z−L2a2=0 are developed. For the case L≥ L min L≥Lmin , these methods imply a complete parametric representation for integer ...
  • Onshore and Offshore Coordination of Logistics Services at Seaports 

    Adu-Gyamfi Appiah, Bright (Master thesis; Mastergradsoppgave, 2019-06-28)
    As global trade increases, sizes of vessels and cargo throughputs have also experienced a sudden rise thereby putting excess pressure on ship berths and ports. This is shifting most ports to much smarter technological solutions with the aim of optimizing operations, increasing efficiency and reducing logistics cost without the need for huge infrastructural and equipment investments. Developing the ...
  • Total Productive Maintenance in an Industry 4.0 Framework 

    Noureddine, Rami (Master thesis; Mastergradsoppgave, 2019-06-28)
    Maintenance is a key operation function that is required to improve business performance by avoiding equipment breakdown. In 1971, Total Productive Maintenance (TPM), a lean manufacturing approach, has been developed and widely used as a maintenance strategy to gain a competitive advantage in industry. However, with the advent of new technology and the internet of things, manufacturing process are ...
  • New Practical Exercise in Lean Six Sigma for Masters Students in UiT – The Arctic University of Norway 

    Maharjan, Sujan (Master thesis; Mastergradsoppgave, 2019-06-28)
    Lean Six Sigma has proven to be a valuable tool for improving flow and quality in any business activities. It is being implemented by almost all business forms globally. It is now an important curriculum for engineering and management students. UiT- The Arctic University of Norway, Narvik is one of the fine institutions which provide training course on Lean Six Sigma for Master’s students studying ...
  • Production and Logistics Systems Improvements - Biim Ultrasound AS 

    Tofah, Dzifa Korbla Wisdom (Master thesis; Mastergradsoppgave, 2019-06-28)
    A crucial aspect of the supply chain network design process is deciding on optimal locations to situate new facilities. Facility location decisions rely on many factors, some of which might be conflicting with each other. The decision factors can be either quantitative or qualitative, thus a brute-force prioritization of one over another could be detrimental overall. To ensure the efficacy of the ...
  • Digital twin simulation with Visual Components 

    Arnarson, Halldor (Master thesis; Mastergradsoppgave, 2019-06-28)
    A digital twin is a new and emerging tool of the fourth industrial revolution. It is an extensive part of connecting the manufacturing equipment together to develop a smart factory. Investigation of simulating manufacturing system to bind the digital world with the physical, allows for analysis of data and monitoring of systems to head off problems before they even occur, preventing downtime, develop ...
  • Thin Wall Structure by Welding 

    Arumairasa, Hans Ivar (Master thesis; Mastergradsoppgave, 2019-06-28)
    Manufacturing of thin wall structure by wire arc additive manufacturing (WAAM) is on the main application of additive manufacturing. 3D-printing technology has significant advantages over traditional milling and machining techniques or welded analogs. Thin wall structure constitutes an essential and growing proportion of engineering construction, within common areas as in structural aerospace and ...
  • Arctic Agriculture by Using Fish Farming Waste in Northern Norway 

    Sæterbø, Mathias (Master thesis; Mastergradsoppgave, 2019-06-28)
    With the growing aquaculture, improved management of the environmental, logistic-managerial, social, and economic aspect are vital to preserving sustainability in the industry. The dissertation addresses the potential processing of the fish waste in aquaponics (a combination of two highly effective production technologies: hydroponics and recirculating aquaculture). Involving a suggestion for ...
  • Design and construction of a flexible manufacturing system test bench 

    Andresen, Martin Røysland (Master thesis; Mastergradsoppgave, 2019-06-28)
    This thesis explores the history, concept and criteria of flexible manufacturing systems. A small-scale test bench is designed and constructed for educational and demonstrational pur- poses. The test bench in comprised of an industrial robot, a CNC machine, and a conveyor. These are all controlled and automated from a PLC with a connected touch panel for human machine interface. It describes in ...
  • Product Quality Assurance using Engineering Strategies for an SME with an ATO Manufacturing System Located in the Arctic Region depending on a Global Supply Chain 

    Steinhauer, Peer Salvator (Master thesis; Mastergradsoppgave, 2019-06-28)
    A small and medium sized enterprise (SME) with an assembly to order manufacturing system (ATO-MS) depending on a global supply chain has especially challenges when it comes to secure the quality. The parts procured from a global supply chain represent a big amount of value invested in to the short line of the MS. Depending on the definition of quality from the suppliers, how can the company react ...
  • Wind energy at remote islands in arctic region—A case study of Solovetsky islands 

    Ghani, Rizwan; Kangash, Aleksei; Virk, Muhammad Shakeel; Maryandshev, Pavel; Mustafa, Mohamad (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-07)
    This paper describes a case study of wind resource assessment and wind park design at the Solovetsky Islands, which are located in the Arctic region of northern Russia. The Solovetsky historical and cultural complex has been included in the list of UNESCO's World Heritage Sites. 18 years of data of wind climatology from the NASA Langley Research Center are used for wind resource assessment at the ...
  • Reverse Logistics Network Design for Effective Management of Medical Waste in Epidemic Outbreaks: Insights from the Coronavirus Disease 2019 (COVID-19) Outbreak in Wuhan (China) 

    Yu, Hao; Sun, Xu; Solvang, Wei Deng; Zhao, Xu (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-09)
    The outbreak of an epidemic disease may pose significant treats to human beings and may further lead to a global crisis. In order to control the spread of an epidemic, the effective management of rapidly increased medical waste through establishing a temporary reverse logistics system is of vital importance. However, no research has been conducted with the focus on the design of an epidemic reverse ...
  • Experimental study of ice accretion on S826 & S832 wind turbine blade profiles 

    Jin, Jia Yi; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-16)
    To optimize the aerodynamic performance and reduce production losses of wind turbine operating in icing conditions, it is necessary to better understand the ice accretion physics along wind turbine blade. This paper describes a case study of ice accretion physics and its effects on aerodynamic performance of S826 and S832 airfoils for dry and wet ice conditions. Both these airfoils have different ...

View more