2024

• Vitenskapelig foredrag
  Bjørgen, Karl Oskar Pires; Desclaux, Anthony; Mounaïm-Rousselle, Christine; Hespel, Camille. (2024) Experimental Characterization of Superheated Ammonia Spray from a Single-hole ECN Spray M Injector. ASME ICE Forward Conference , San Antonio, Texas, USA 2024-10-20 - 2024-10-23
• Poster
  Bjørgen, Karl Oskar Pires; Løvås, Terese. (2024) An Experimental Investigation of Ammonia-nHeptane Spray Interaction under High Temperature and Pressure Conditions: Impact of Ambient Air Temperature and Pilot Injection. CI’s 40th International Symposium 2024-07-21 - 2024-07-26
• Vitenskapelig foredrag
  Wang, Liang; Skreiberg, Øyvind; Bjørgen, Karl Oskar Pires; Sebestyén, Zoltán; Czégény, Zsuzsanna; Bakken, Jørn. (2024) Production and characterization of biocarbon under different conditions. IFQ Impacts of Fuel Quality 2024 , Garmisch-Partenkirchen, Germany 2024-09-02 - 2024-09-06
• Poster
  Pedersen, Krister Aaen; Lewandowski, Michal Tadeusz; Bjørgen, Karl Oskar Pires; Løvås, Terese. (2024) Impact of Pilot Fuel Spray Orientation in a Dual-Fuel Ammonia-Diesel Engine. Universitat Politècnica de València Thiesel 2024 , Valencia, Spain 2024-09-10 - 2024-10-13

2023

• Poster
  Zhang, Jingyuan; Bjørgen, Karl Oskar Pires; Netzer, Corinna; Løvås, Terese. (2023) Machine learning-assisted predictions of soot distributions from luminosity images for renewable fuels. Combustion Institute European Combustion Meeting , Rouen, Frankrike 2023-04-25 - 2023-04-28
• Poster
  Bjørgen, Karl Oskar Pires; Borsheim, Nina; Løvås, Terese. (2023) Momentum Flux Measurements of Liquid Injection of Ammonia using a GDI Injector. Combustion Institute European Combustion Meeting , Rouen, France 2023-04-25 - 2023-04-28
• Faglig foredrag
  Bjørgen, Karl Oskar Pires. (2023) Dual fuel combustion of ammonia and diesel in a CI engine by direct injection. University of Orleans 2nd Symposium on Ammonia Energy , Orleans 2023-07-10 - 2023-07-13
• Vitenskapelig foredrag
  Bjørgen, Karl Oskar Pires; Emberson, David Robert; Løvås, Terese. (2023) The effect of ammonia and diesel spray orientation on combustion characteristics and emissions in a CI engine. The Scandinavian-Nordic Section of the Combustion Institute Nordic Flame Days 2023 , Trondheim 2023-11-29 - 2023-11-30

2022

• Vitenskapelig foredrag
  Bjørgen, Karl Oskar Pires. (2022) Direct injection of ammonia and biodiesel in a single cylinder compression ignition engine. Silesian University of Technology CPOTE 2022 , Warszawa 2022-09-20 - 2022-09-23
• Vitenskapelig foredrag
  Wang, Liang; Bjørgen, Karl Oskar Pires; Olsen, Maria Nicte Polanco; Czégény, Zsuzsanna; Skreiberg, Øyvind; Grønli, Morten. (2022) A comparative study on the effect of slow pyrolysis temperature on softwood and hardwood pyrolysis products yields and biochar properties. Pyro 2022 23rd International Conference on Analytical and Applied Pyrolysis (Pyro 2022) , Ghent, Belgium 2022-05-15 - 2022-05-20
• Poster
  Bjørgen, Karl Oskar Pires; Emberson, David; Løvås, Terese. (2022) Combustion of Ammonia and Biodiesel in a Compression Ignition Engine by Direct Injection. Combustion Institute 39th International Symposium on Combustion , Vancouver 2022-07-25 - 2022-07-29
• Poster
  Khare, Shivang; Bjørgen, Karl Oskar Pires; Kohansal, Komeil; Emberson, David Robert; Løvås, Terese; Pedersen, Thomas Helmer. (2022) Combustion and Emissions study of Hydrothermal Liquefaction (HTL) Biofuel in Optical Engine. Bio4Fuels Days (Poster Presentation), Bergen, Norway , Bergen 2022-11-15 - 2022-11-16
• Poster
  Khare, Shivang; Bjørgen, Karl Oskar Pires; Emberson, David Robert; Løvås, Terese. (2022) Experimental Study of Hydrothermal Lique-Faction (HTL) Biofuel in CI Engine. Norren Summer School (Poster Presentation), Asker, Norway 2022-06-13 - 2022-06-16

2021

• Faglig foredrag
  Bantle, Michael; Bjørgen, Karl Oskar Pires; Claussen, Ingrid Camilla. (2021) Climate Neutral Drying of Organic Products: CO2 heat pump drying . SINTEF Energi AS Smart and Sustainable Processing of Organic Fresh Products , Digital 2021-05-28 - 2021-05-28
• Vitenskapelig foredrag
  Sevault, Alexis; Vullum-Bruer, Fride; Bjørgen, Karl Oskar Pires. (2021) Active PCM-based heat storage using biowax and a pillow-plate heat exchanger in a ZEB building. University of Ljubljana, Faculty of Mechanical Engineering, Slovenia Enerstock 2021 - 15th International Conference on Energy Storage , Ljubljana, Slovenia 2021-06-09 - 2021-06-11
• Poster
  Wang, Liang; Skreiberg, Øyvind; Czégény, Zsuzsanna; Olsen, Maria Nicte Polanco; Bjørgen, Karl Oskar Pires. (2021) Production and Characterization of Biocarbon from Woody Biomass under Different Pyrolysis Conditions. EUBCE 29th European Biomass Conference & Exhibition , online 2021-04-26 - 2021-04-29
• Vitenskapelig foredrag
  Wang, Liang; Skreiberg, Øyvind; Czégény, Zsuzsanna; Olsen, Maria Nicte Polanco; Bjørgen, Karl Oskar Pires. (2021) Production and characterization of biochar from woody biomass under different pyrolysis conditions. SDEWES 16th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES) , Dubrovnik, Croatia 2021-10-10 - 2021-10-15
• Poster
  Wang, Liang; Skreiberg, Øyvind; Czégény, Zsuzsanna; Tschentscher, Roman; Olsen, Maria Nicte Polanco; Bjørgen, Karl Oskar Pires. (2021) Characterization of liquid by-products from slow pyrolysis of woody biomass. EUBCE 29th European Biomass Conference & Exhibition , online 2021-04-26 - 2021-04-29

2019

• Vitenskapelig foredrag
  Lewandowski, Michal; Emberson, David; Netzer, Corinna; Ahmed, Ahfaz; Bjørgen, Karl Oskar Pires; Løvås, Terese. (2019) Numerical investigation of emissions from combustion of diesel fuels using Stochastic Reactor Model. XIII Modelling of Multiphase Flows in Thermo-Chemical Systems , Wiezyca 2019-06-13 - 2019-06-15
• Vitenskapelig foredrag
  Bjørgen, Karl Oskar Pires. (2019) Diffuse Back-Illuminated Extinction Imaging of Soot: Effects of Beam Steering and Flame Luminosity. SAE International SAE International Powertrains, Fuels and Lubricants , San Antonio, Texas 2019-01-22 - 2019-01-24
• Poster
  Emberson, David; Bjørgen, Karl Oskar Pires; Løvås, Terese. (2019) Detailed In-flame Soot Characteristics of Diesel, HVO and FAME using Extinction Imaging . Bio4Fuels Bio4Fuels Days , Gothenburg 2019-11-04 - 2019-11-06
• Poster
  Lewandowski, Michal; Emberson, David; Netzer, Corinna; Ahmed, Ahfaz; Bjørgen, Karl Oskar Pires; Løvås, Terese. (2019) Numerical investigation of emissions from combustion of diesel fuels with glycerol addition using Stochastic Reactor Model . Building a Sustainable European Biofuel Industry , Gothenburg 2019-11-04 - 2019-11-06

2018

• Poster
  Bjørgen, Karl Oskar Pires; Emberson, David; Løvås, Terese. (2018) Detailed in-flame soot characteristics of Diesel, HVO and FAME using extinction imaging. Combustion Institute 37th International Symposium on Combustion , Dublin 2018-07-29 - 2018-08-03
• Poster
  Bjørgen, Karl Oskar Pires; Emberson, David. (2018) Soot characterization: Combined sampling and optical techniques. UNIVERSITAT POLITÈCNICA DE VALÈNCIA THIESEL 2018. Thermo-and Fluid Dynamics Processes in Direct Injection Engines , Valencia 2018-09-11 - 2018-09-14

2017

• Vitenskapelig foredrag
  Emberson, David; Bjørgen, Karl Oskar Pires; Løvås, Terese. (2017) Arctic Biodiesel Performance and PM Number Emissions. JSME COMODIA 2017 , Okayama 2017-07-25 - 2017-07-28
• Poster
  Bjørgen, Karl Oskar Pires; Emberson, David. (2017) Assessment of L.E.D diffused backilluminated soot extinction to use in reciprocating rapid compression machine. Adria Section of the Combustion Institute 8th European Combustion Meeting 2017 , Dubrovnik 2017-04-18 - 2017-04-21
• Vitenskapelig foredrag
  Bjørgen, Karl Oskar Pires; Emberson, David; Løvås, Terese. (2017) Diffuse Back-illuminated Imaging of Soot in an Optical Reciprocating Rapid Compression Machine. Scandinavian-Nordic Section of the Combustion Institute Nordic Flame Days , Stockholm 2017-10-10 - 2017-11-11

2016

• Poster
  Bjørgen, Karl Oskar Pires; Emberson, David. (2016) A Novel Optical Experimental Suite for CI Combustion Characterization. Universidad Politécnica de Valencia THIESEL 2016. Thermo and Fluid Dynamic Processes in Direct Injection Engines , Valencia 2016-09-13 - 2016-09-16
• Poster
  Bjørgen, Karl Oskar Pires; Emberson, David; Løvås, Terese. (2016) Combustion Characterization of Second-generation Biofuels for Arctic Conditions in Compression-ignition Engines. Combustion Institute 36th International Symposium on Combustion , Seoul 2016-07-31 - 2016-08-05