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Blar i NTNU Open på forfatter "Lien, Kristian Myklebust"

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Viser treff 1-16 av 16

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    • A Review of the Role of Critical Parameters in the Design and Operation of Biogas Production Plants 

      Sarker, Shiplu; Lamb, Jacob Joseph; Hjelme, Dag Roar; Lien, Kristian Myklebust (Journal article; Peer reviewed, 2019)
      Many operating parameters, individually or together, may influence the performance of anaerobic digestion towards biogas or digestate yield and quality maximization. The most preferred method of optimizing an anaerobic ...
    • Carbohydrate Yield and Biomethane Potential from Enzymatically Hydrolysed Saccharina latissima and Its Industrial Potential 

      Lamb, Jacob Joseph; Hjelme, Dag Roar; Lien, Kristian Myklebust (Journal article; Peer reviewed, 2019)
      The demand for fuel for utilisation of machinery and transport has culminated in large amounts of fossil fuel usage in the last century. The environmental dangers attached with the usage of fossil fuels have created a large ...
    • Carbon Footprint of Electrified City Buses - Case Trondheim 

      Lie, Kristoffer Wigdahl; Synnevåg, Trym Andreassen (Bachelor thesis, 2020)
      Etter som nye globale og nasjonale klimastrategier, som arbeider mot Parisavtalen, blir iverksatt, har transportsektoren blitt satt i større fokus. Et miljøpotensial eksisterer i elektrifiseringen av kollektivflåter, og i ...
    • Cryogenic vs. absorption biogas upgrading in liquefied biomethane production – An energy efficiency analysis 

      Hashemi, Sayed Ebrahim; Sarker, Shiplu; Lien, Kristian Myklebust; Schnell, Sondre Kvalvåg; Austbø, Bjørn (Journal article; Peer reviewed, 2019)
      Production of liquefied biomethane (LBM) from biogas comprises two major energy intensive processes; upgrading to increase the methane concentration and refrigeration to liquefy the upgraded biogas. Amine-based absorption ...
    • Digitalization of colourimetric sensor arrays for volatile fatty acid detection in anaerobic digestion 

      Lamb, Jacob Joseph; Lien, Kristian Myklebust; Hjelme, Dag Roar (Journal article; Peer reviewed, 2019)
      During the process of converting the organic matter into methane, many volatile fatty acids (VFAs) are produced during acidogenesis and acetogenesis phases of the process. The main VFAs of interest are acetic acid, butyric ...
    • Effect of power ultrasound and Fenton reagents on the biomethane potential from steam-exploded birchwood 

      Lamb, Jacob Joseph; Islam, Md Hujjatul; Hjelme, Dag Roar; Pollet, Bruno; Lien, Kristian Myklebust (Journal article; Peer reviewed, 2019)
      The global demand for non-fossil energy sources is increasing rapidly. As a result, biogas presents a suitable alternative; however, first generation biofuels (e.g., sugar cane) potentially impact food crops globally. ...
    • Greenhouse gas balances in Zero Emission Buildings – Electricity conversion factors revisited 

      Andresen, Inger; Lien, Kristian Myklebust; Berker, Thomas; Sartori, Igor (ZEB Project report;, Research report, 2017)
    • Lessons learned from an experimental campaign on promoting energy content of renewable biogas by injecting H2 during anaerobic digestion 

      Sarker, Shiplu; Wijnsma, Sander; Lien, Kristian Myklebust (Peer reviewed; Journal article, 2020)
      Direct injection of H2 to an anaerobic reactor enables biological fixation of CO2 into CH4 (biomethanation) and consequently boosts methane content in the produced biogas. However, there has been only a small amount of ...
    • Lønnsomhet ved omfattende energioppgradering av et 60-tallshus 

      Mossing, Ane; Røise, Mina; Vigmostad, Tonje Marie (Bachelor thesis, 2020)
      Denne rapporten inneholder en sammenligning av tre ulike energioppgraderinger for et 60-tallshus på Kolsås i Bærum. Hovedpoenget med oppgaven er å finne ut hvordan en omfattende energioppgradering av et 60-tallshus kan ...
    • Microalgae production with rotating algal biofilm reactors for water treatment in land-based fish farms 

      Olberg, Vanja Revold; Steinvoll, Simon Bjerkan (Bachelor thesis, 2020)
      Et denitrifiseringsfilter kan ansees som et lite bærekraftig alternativ til vannbehandling i landbaserte fiskeoppdrettsanlegg siden det ikke tar vare på organiske nitrogenforbindelser som er verdifulle i for eksempel ...
    • Opportunities and challenges for thermally driven hydrogen production using reverse electrodialysis system 

      Raka, Yash Dharmendra; Karoliussen, Håvard; Lien, Kristian Myklebust; Burheim, Odne Stokke (Journal article; Peer reviewed, 2019)
      Ongoing and emerging renewable energy technologies mainly produce electric energy and intermittent power. As the energy economy relies on banking energy, there is a rising need for chemically stored energy. We propose heat ...
    • Optimization of an Absorption-Based Biogas Upgrading and Liquefaction Process 

      Hashemi, Sayed Ebrahim; Lien, Kristian Myklebust; Schnell, Sondre Kvalvåg; Austbø, Bjørn (Journal article; Peer reviewed, 2019)
      The present work proposes a methodology for optimization of a liquefied biomethane (LBM) production plant. The LBM production plant comprises amine-based absorption upgrading followed by a single expander refrigeration ...
    • Overview of recent progress towards in-situ biogas upgradation techniques 

      Sarker, Shiplu; Lamb, Jacob Joseph; Hjelme, Dag Roar; Lien, Kristian Myklebust (Journal article; Peer reviewed, 2018)
      Biogas, as derived from the anaerobic digestion process, offers a versatile possibility of renewable and sustainable energy usage. When enriched, upgraded biogas can yield high levels of biomethane, allowing its use as an ...
    • Perspectives of optical colourimetric sensors for anaerobic digestion 

      Lamb, Jacob Joseph; Bernard, Olivier; Sarker, Shiplu; Lien, Kristian Myklebust; Hjelme, Dag Roar (Journal article; Peer reviewed, 2019)
      Although biogas is not a new approach to producing renewable fuel, it could further be developed to improve its potential as an alternative energy source. To achieve this, vast improvements in the efficiency and cost of ...
    • Perspectives of surface plasmon resonance sensors for optimized biogas methanation 

      Lamb, Jacob Joseph; Bernard, Olivier; Sarker, Shiplu; Lien, Kristian Myklebust; Hjelme, Dag Roar (Journal article; Peer reviewed, 2019)
      Biogas production is becoming significantly viable as an energy source for replacing fossil‐based fuels. The further development of the biogas production process could lead to significant improvements in its potential. ...
    • Yield improvements in anaerobic digestion of lignocellulosic feedstocks 

      Hashemi, Sayedbehnam; Sarker, Shiplu; Lamb, Jacob Joseph; Lien, Kristian Myklebust (Peer reviewed; Journal article, 2020)
      The new EU bioenergy sustainability criteria demonstrate that bioenergy sustainability can be a challenge (Schlegel and Kaphengst, 2007). In 1990s, the energy crops were the main source for biogas production in Europa; ...

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