Now showing items 1663-1682 of 3959

    • Hybrid joist floor constructions. Evaluation of measurement results 

      Homb, Anders (Chapter; Conference object, 2019)
      Lightweight building systems in general suffer from limited sound insulation, especially at low frequencies. Furthermore, theoretical models have severe limitations regarding prediction of the impact sound insulation and ...
    • A hybrid perspective on energy transition pathways: Is hydrogen the key for Norway? 

      Damman, Sigrid; Sandberg, Eli; Rosenberg, Eva; Pisciella, Paolo; Graabak, Ingeborg (Peer reviewed; Journal article, 2021)
      Hydrogen may play a significant part in sustainable energy transition. This paper discusses the sociotechnical interactions that are driving and hindering development of hydrogen value chains in Norway. The study is based ...
    • Hybrid Welding of 45 mm High Strength Steel Sections 

      Bunaziv, Ivan; Frostevarg, Jan; Akselsen, Odd Magne; Kaplan, Alexander F.H. (Peer reviewed; Journal article, 2017)
      Thick section welding has significant importance for oil and gas industry in low temperature regions. Arc welding is usually employed providing suitable quality joints with acceptable toughness at low temperatures with ...
    • HYDRAITE presentation 

      Aarhaug, Thor Anders (Lecture, 2020)
      FCH2 JU HYDRAITE (Hydrogen Delivery Risk Assessment and Impurity Tolerance Assurance) project outline - sampling
    • Hydraulic Design of Thermally Coupled Columns and a DWC for NGL Fractionation Plants 

      Dejanovic, Igor; Halvorsen, Ivar Johan; Jansen, Helmut; Olujic, Zarko (Journal article; Peer reviewed, 2018)
      Combining a conventional demethanizer with thermally coupled deethanizer and propane-butane recovery columns or a three-product dividing wall column (DWC) provides a realistic opportunity for natural gas liquids (NGL) ...
    • Hydraulic reliability analysis of a real network with remotely realtime controlled pressure control valves 

      Laucelli, Daniele; Berardi, Luigi; Simone, Antonietta; Raspati, Gema Sakti; Ugarelli, Rita Maria; Giustolisi, Orazio (Chapter; Conference object, 2017)
      The paper considers a real water distribution network, where current pressure control strategies exploit classical pressure control valves (PCVs). A previous study identified alternative pressure ...
    • Hydraulic system modelling: background leakage model calibration in Oppegård municipality 

      Berardi, Luigi; Laucelli, Daniele; Ugarelli, Rita Maria; Giustolisi, Orazio (Journal article; Peer reviewed, 2015)
    • Hydrogen Enhanced Fatigue Crack Growth Rates in a Ferritic Fe-3wt%Si Alloy 

      Alvaro, Antonio; Wan, Di; Olden, Vigdis; Barnoush, Afrooz (Journal article; Peer reviewed, 2018)
      It is well known that the presence of hydrogen in ferrous materials promotes both static fracture and affect the material fatigue crack growth rates. The latter is often referred to as Hydrogen Enhanced Fatigue Crack Growth ...
    • Hydrogen enhanced fatigue crack growth rates in a ferritic Fe-3 wt%Si alloy and a X70 pipeline steel 

      Alvaro, Antonio; Wan, Di; Olden, Vigdis; Barnoush, Afrooz (Journal article; Peer reviewed, 2019)
      It is well known that ferrous materials can be damaged by absorption of hydrogen. If a sufficient quantity of hydrogen penetrates into the material, static fracture and the material's fatigue performances can be affected ...
    • Hydrogen from wet air and sunlight in a tandem photoelectrochemical cell 

      Xu, Kaiqi; Chatzitakis, Athanasios Eleftherios; Vøllestad, Einar; Ruan, Qiushi; Tang, Junwang; Norby, Truls Eivind (Peer reviewed; Journal article, 2019)
      A solid-state photoelectrochemical (SSPEC) cell is an attractive approach for solar water splitting, especially when it comes to monolithic device design. In a SSPEC cell the electrodes distance is minimized, while the use ...
    • Hydrogen Induced Vacancy Clustering and Void Formation Mechanisms at Grain Boundaries in Palladium 

      Polfus, Jonathan Marc; Løvvik, Ole Martin; Bredesen, Rune; Peters, Thijs (Peer reviewed; Journal article, 2020)
      Hydrogen has a significant impact on the formation of vacancies, clusters and voids in palladium and other metals. The formation of vacancy-hydrogen complexes in bulk Pd and at Σ3 and Σ5 grain boundaries was investigated ...
    • Hydrogen Influence on Mechanical Properties in Pipeline Steel - state of the art 

      Hagen, Anette Brocks; Alvaro, Antonio (SINTEF Rapport;, Research report, 2020)
      The state-of-the-art report consist of an overview and a summary of the mechanical behaviour of pipeline steels (in the range of X42-X70) when exposed to electrochemical charging and gaseous hydrogen environment. Experimental ...
    • Hydrogen informed Gurson model for hydrogen embrittlement simulation 

      Yu, Haiyang; Olsen, Jim Stian; Alvaro, Antonio; qiao, lijie; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2019)
      Hydrogen-microvoid interactions were studied via unit cell analyses with different hydrogen concentrations. The absolute failure strain decreases with hydrogen concentration, but the failure loci were found to follow the ...
    • Hydrogen production by water splitting using gas switching technology 

      Ugwu, Ambrose; Donat, Felix; Zaabout, Abdelghafour; Müller, Christoph; Albertsen, Knuth; Cloete, Schalk Willem Petrus; van Diest, Geert; Amini, Shahriar (Peer reviewed; Journal article, 2020)
      This study demonstrates a novel “Gas Switching Water Splitting (GSWS)” technology for production of pure H2with integrated CO2capture. The reactor concept is based on the chemical looping technology where an oxygen carrier ...
    • Hydrogen production by water splitting using gas switching technology 

      Ugwu, Ambrose; Donat, Felix; Zaabout, Abdelghafour; Müller, Christoph; Albertsen, Knuth; Cloete, Schalk Willem Petrus; van Diest, Geert; Amini, Shahriar (Peer reviewed; Journal article, 2020)
      This study demonstrates a novel “Gas Switching Water Splitting (GSWS)” technology for production of pure H2 with integrated CO2 capture. The reactor concept is based on the chemical looping technology where an oxygen carrier ...
    • Hydrogen quality sampling at the hydrogen refuelling station - lessons learnt on sampling at the production and at the nozzle 

      Bacquart, Thomas; Moore, Niamh; Hart, Nick; Morris, Abigail; Aarhaug, Thor Anders; Kjos, Ole Sigmund; Aupretre, Fabien; Colas, Thibault; Haloua, Frédérique; Gozlan, Bruno; Murugan, Arul (Peer reviewed; Journal article, 2019)
      Fuel cell electric vehicles and hydrogen refuelling infrastructure are developing quickly in Europe, the USA and Asia. Hydrogen quality for transport applications requires compliance with ISO 14687-2: 2012 and EN 17124:2018 ...
    • Hydrogen separation membranes based on dense ceramic composites in the La27W5O55.5–LaCrO3 system 

      Polfus, Jonathan M.; Xing, Wen; Fontaine, Marie-Laure; Denonville, Christelle; Henriksen, Partow Pakdel; Bredesen, Rune (Peer reviewed; Journal article, 2015)
      Some compositions of ceramic hydrogen permeable membranes are promising for integration in high temperature processes such as steam methane reforming due to their high chemical stability in large chemical gradients and CO2 ...
    • Hydrogen storage properties of rare earth (RE) borohydrides (RE = La, Er) in composite mixtures with LiBH4 and LiH 

      Frommen, Christoph; Heere, Michael; Riktor, Marit Dalseth; Sørby, Magnus Helgerud; Hauback, Bjørn (Peer reviewed; Journal article, 2015)
    • Hydrogen trapping in X70 structural pipeline steel and weldments 

      Sezgin, Jean-Gabriel; Fjær, Hallvard Gustav; Matsunaga, Hisao; Yamabe, Junichiro; Olden, Vigdis (Chapter; Peer reviewed, 2018)
      Diffusion measurements and thermal desorption measurements have been performed on a X70 pipeline steel, in as received and normalized and quenched condition, after being hydrogen charged for 200 h at 100 MPa hydrogen gas ...
    • Hydrogen-assisted crack propagation in α-iron during elasto-plastic fracture toughness tests 

      Birenis, Domas; Ogawa, Yuhei; Matsunaga, Hisao; Takakuwa, Osamu; Yamabe, Junichiro; Prytz, Øystein; Thøgersen, Annett (Journal article; Peer reviewed, 2019)
      Elasto-plastic fracture toughness tests of a commercially pure iron were performed in air and in hydrogen gas at two different pressures. Some unique characteristics of hydrogen-enhanced cracking were exhibited at both the ...