• Anaerobic Digestion Process Modeling Under Uncertainty: A Narrative Review 

      Barahmand, Zahir; Samarakoon Arachchige, Gamunu (Peer reviewed; Journal article, 2023)
      Growing concern about global climate change has led to considerable interest in investigating renewable energy sources such as the biological conversion of biomass to methane in an anaerobic environment. Through a series ...
    • Assessing and prioritizing challenges facing bioenergy supply chain in Norway: a Delphi-AHP method 

      Barahmand, Zahir; Eikeland, Marianne Sørflaten (Peer reviewed; Journal article, 2022)
      Norway is leading the share of renewable energy in Europe by almost 75%. However, the share of bioenergy in Norway’s energy supply is insignificant. Bioenergy, the most common type of renewable energy, generates more energy ...
    • CPFD model for prediction of flow behavior in an agglomerated fluidized bed gasifier 

      Furuvik, Nora Cecilie Ivarsdatter; Jaiswal, Rajan; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie (Peer reviewed; Journal article, 2019)
      Renewable energy sources have significant potential for limiting climate change and reducing greenhouse gas emissions due to the increased global energy demand. Fluidized bed gasification of biomass is a substantial ...
    • A CPFD model to investigate the influence of feeding positions in a gasification reactor 

      Jaiswal, Rajan; Furuvik, Nora Cecilie Ivarsdatter; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
      The efficiency of a gasification process is directly related to the rate of biomass conversion into product gas. The rate of fuel conversion depends on the interaction of fuel with the bed material, the gasifying agent, ...
    • Distribution Of Co2 In Fractured Carbonate Reservoirs 

      Furuvik, Nora Cecilie Ivarsdatter; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2017)
      Deep geologic injection of supercritical carbon dioxide (CO 2 ) for enhanced oil recovery (EOR) has been widely used for improved oil recovery from depleted oilfields since early 1970s. The CO 2 injec - tion maintains the ...
    • Effect of particle size on flow behavior in fluidized beds 

      Timsina, Ramesh; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (Peer reviewed; Journal article, 2019)
      The fluidization behaviour depends on particle properties such as particle size, sphericity, density and the properties of the fluidizing agent. In this study, the effects of different particle sizes on fluidization behaviour ...
    • Experimental and computational studies of circulating fluidized bed 

      Moradi, Ali; Samani, Nastaran Ahmadpour; Mojarrad, Masih; Sharfuddin, Mohammad; Bandara, Janitha; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
      Biomass gasification represents an efficient process for the production of power, heat and biofuels. Different technologies are used for gasification and this article focuses on a circulating fluidized bed (CFB) system. ...
    • Experimental and computational studies on biomass gasification in fluidized beds 

      Basmoen, Tommy A.; Deeraksa, Chidapha; Nwosu, Chimunche F.; Qaredaghi, Ebrahim; Jaiswal, Rajan; Furuvik, Nora Cecilie Ivarsdatter; Moldestad, Britt Margrethe Emilie (Peer reviewed; Journal article, 2019)
      The world’s energy consumption is increasing, and research regarding utilization of renewable energy sources is crucial. Biomass for direct heating has been used for thousands of years, while in the last decades alternative ...
    • Experiments and computational particle fluid dynamics simulations of biomass gasification in an air-blown fluidized bed gasifier 

      Timsina, Ramesh; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie; Eikeland, Marianne Sørflaten (Journal article; Peer reviewed, 2020)
      Experiments were performed in a pilot-scale bubbling fluidized bed gasification reactor with air as a fluidizing agent. Birch wood chips and sand particles were used as biomass and bed materials. Average molar product gas ...
    • Method of identifying an operating regime in a bubbling fluidized bed gasification reactor 

      Jaiswal, Rajan; Furuvik, Nora Cecilie Ivarsdatter; Thapa, Rajan Kumar; Moldestad, Britt Margrethe Emilie (Journal article; Peer reviewed, 2020)
      This work presents a new method for identifying the bubbling regime of a fluidized bed gasification reactor. The method has been developed using experimental measurements and a computational model. Pressure drops are ...
    • Stepwise Analysis Of Gasification Reactions With Aspen Plus And Cpfd 

      Eikeland, Marianne Sørflaten; Thapa, Rajan Kumar (Journal article; Peer reviewed, 2017)
      The energy from biomass can be utilized through the thermochemical conversion processes of pyrolysis and gasification. Biomass such as wood chips is heated in a gasification reactor to produce a synthesis gas containing ...