• An Approach to Update the Failure Rates of Safety Barriers Based on Operating Experience 

      Lee, Shenae; Khakzad, Nima; Schmitz, Peter; Reniers, Genserik; Håbrekke, Solfrid; Paltrinieri, Nicola (Peer reviewed; Journal article, 2022)
      Hazardous events in process plants like the leakage of dangerous substances can result in severe damage, and such an event is often defined as the TOP event of a fault tree analysis (FTA) in a quantitative risk analysis. ...
    • Digital Twin Concept for Risk Analysis of Oil Storage Tanks in Operations: a Systems Engineering Approach 

      Lee, Shenae; Haskins, Cecilia; Paltrinieri, Nicola (Peer reviewed; Journal article, 2022)
      This paper presents an approach to develop a risk monitoring tool for oil storage facilities. The suggested approach is derived from the existing dynamic risk analysis (DRA) methods and the digital twin concepts. One of ...
    • Dividing wall columns for natural gas liquefaction plants 

      Halvorsen, Ivar Johan; Dejanovic, Igor; Olujic, Zarko; Skogestad, Sigurd (Journal article; Peer reviewed, 2018)
      In order to meet current carbon dioxide emissions reduction challenges, natural gas processing and refining industries have to find the ways to minimize energy requirements of distillation operations. Building on foundations ...
    • Multi-Product Dividing Wall Columns: A Simple and Effective Assessment and Conceptual Design Procedure 

      Halvorsen, Ivar Johan; Skogestad, Sigurd; Dejanovic, Igor; Matijasevic, Ljubica; Olujic, Zarko (Journal article; Peer reviewed, 2011)
      The objective of this paper is to further exploit and demonstrate the potential benefits of a V-min diagram based analysis, using a fifteen component feed mixture as base case. Detailed explanations are given on how to ...
    • On controllability of four-product dividing wall columns 

      Lukac, Goran; Halvorsen, Ivar Johan; Olujic, Zarko; Dejanovic, Igor (Journal article; Peer reviewed, 2018)
      Although potential for reduction of energy requirement and related carbon dioxide emissions is highly attractive – around 50% compared to conventional three column sequences – process industries are still reluctant to ...
    • A Risk Aspect of Periodic Testing on Pressure Relief Valves 

      Lee, Shenae; Barros, Anne; Lundteigen, Mary Ann; Paltrinieri, Nicola (Peer reviewed; Journal article, 2022)
      A pressure relief valve (PSV) is a key safety barrier to prevent the catastrophic rupture of pressure equipment in a process plant. The safety function of a PSV is to open and relieve the pressure when the equipment pressure ...