• CO2 Capture and Enhanced Hydrogen Production Enabled by Low-Temperature Separation of PSA Tail Gas: A Detailed Exergy Analysis 

      Berstad, David Olsson; Straus, Julian; Gundersen, Truls (Peer reviewed; Journal article, 2024)
      Abstract Hydrogen from natural gas reforming can be produced efficiently with a high CO2 capture rate. This can be achieved through oxygen-blown autothermal reforming as the core technology, combined with pressure-swing ...
    • CO2 Capture from IGCC by Low-Temperature Synthesis Gas Separation 

      Berstad, David Olsson; Skaugen, Geir; Roussanaly, Simon; Anantharaman, Rahul; Nekså, Petter; Jordal, Aina Benedikte Kristin; Trædal, Stian; Gundersen, Truls (Peer reviewed; Journal article, 2022)
      Capture conditions for CO2 vary substantially between industrial point sources. Depending on CO2 fraction and pressure level, different capture technologies will be required for cost- and energy-efficient decarbonisation. ...
    • Design of a novel hybrid process for membrane assisted clean hydrogen production with CO2 capture through liquefaction 

      Kim, Donghoi; Liu, Zhongxuan; Anantharaman, Rahul; Riboldi, Luca; Odsæter, Lars Hov; Berstad, David Olsson; Peters, Thijs; Polfus, Jonathan; Malerød-Fjeld, Harald; Gundersen, Truls (Peer reviewed; Journal article, 2022)
      This work introduces a novel hybrid concept to produce H2 from natural gas by using the protonic membrane reformer (PMR) with liquefaction based CO2 capture system. For process intensification, recycling of the off-gas ...
    • Energy, economic and environmental analysis of a BOG re-liquefaction process for an LNG carrier 

      Hwang, Chulmin; Oh, Sungkyun; Kim, Donghoi; Gundersen, Truls; Lim, Yongsub (Peer reviewed; Journal article, 2022)
      Due to tighter environmental regulations, newly built liquefied natural gas (LNG) carriers are equipped with a re-liquefaction system to minimize combustion of surplus boil-off-gas (BOG). Thus, this paper comparatively ...
    • Identifying optimal thermodynamic paths in work and heat exchange network synthesis 

      Yu, Haoshui; Fu, Chao; Vikse, Matias; He, Chang; Gundersen, Truls (Journal article; Peer reviewed, 2018)
      The process synthesis problem referred to as work and heat exchange networks (WHENs) is an extension of the classical heat exchanger networks problem considering only temperature and heat. In WHENs, additional properties ...
    • The importance of thermodynamic insight in Work and Heat Exchange Network Design 

      Fu, Chao; Wang, Xiaoling; Gundersen, Truls (Peer reviewed; Journal article, 2020)
      Work and Heat Exchange Network (WHEN) design has been an emerging topic in the area of Process Synthesis and has attracted increasing research interest in the past few years. Not only temperature changes but also pressure ...
    • Innovation in a heterogeneous CCS research centre, managerial and organizational challenges 

      Aasen, Tone Merethe; Mølnvik, Mona J.; Aarlien, Rune; Bredesen, Rune; Munkejord, Svend Tollak; Brunsvold, Amy; Gundersen, Truls (Peer reviewed; Journal article, 2012)
      Recently, the Norwegian authorities have established a number of Centres for Environment-friendly Energy Research (CEER), intended to develop new knowledge, foster breakthrough technology and promote innovation in order ...
    • Model reformulations for Work and Heat Exchange Network (WHEN) synthesis problems 

      Yu, Haoshui; Vikse, Matias; Anantharaman, Rahul; Gundersen, Truls (Journal article; Peer reviewed, 2019)
      The Duran-Grossmann model can deal with heat integration problems with variable process streams. Work and Heat Exchange Networks (WHENs) represent an extension of Heat Exchange Networks. In WHEN problems, the identities ...
    • Optimal recovery of thermal energy in liquid air energy storage 

      Liu, Zhongxuan; Kim, Donghoi; Gundersen, Truls (Peer reviewed; Journal article, 2021)
      The increasing share of renewables in energy systems requires energy storage technologies to handle intermittent energy sources and varying energy sinks. Liquid air energy storage (LAES) is a promising technology since it ...
    • Optimization and analysis of different liquid air energy storage configurations 

      Liu, Zhongxuan; Kim, Donghoi; Gundersen, Truls (Peer reviewed; Journal article, 2022)
      Energy storage technologies are required to ensure stability of energy systems when the share of renewable energy forms (wind and solar) is increasing. Liquid air energy storage (LAES) is a promising technology for storing ...
    • Techno-economic Analysis of Different Liquid Air Energy Storage Configurations 

      Liu, Zhongxuan; Kim, Donghoi; Gundersen, Truls (Peer reviewed; Journal article, 2022)
      With the increasing use of renewables in energy systems, grid stability becomes a major issue due to the intermittent nature of energy sources such as solar and wind. To compensate for the unstable renewable energy sources, ...
    • Work and Heat Integration: An emerging research area 

      Fu, Chao; Vikse, Matias; Gundersen, Truls (Journal article; Peer reviewed, 2018)
      The extension from Heat Integration (HI) and design of Heat Exchanger Networks (HENs) to including heating and cooling effects from pressure changing equipment has been referred to as Work and Heat Integration and design ...
    • Work and heat integration: An emerging research area 

      Fu, Chao; Vikse, Matias; Gundersen, Truls (Journal article; Peer reviewed, 2018)
      The extension from Heat Integration (HI) and design of Heat Exchanger Networks (HENs) to including heating and cooling effects from pressure changing equipment has been referred to as Work and Heat Integration and design ...
    • Work and heat integration—A new field in process synthesis and process systems engineering 

      Yu, Haoshui; Fu, Chao; Vikse, Matias; Gundersen, Truls (Journal article; Peer reviewed, 2018)
      The extension from heat integration and design of heat exchanger networks (HENs) to including heating, cooling, and power effects from pressure changing equipment has been referred to as work and heat integration and design ...
    • Work Exchange Networks (WENs) and Work and Heat Exchange Networks (WHENs): A review of the current state of the art 

      Yu, Haoshui; Fu, Chao; Gundersen, Truls (Peer reviewed; Journal article, 2020)
      This paper provides a current state-of-the-art review of literature on work exchange networks (WENs) and work and heat exchange networks (WHENs). Heat exchange networks (HENs) and mass exchange networks (MENs) have been ...