Now showing items 6798-6817 of 21949

    • Energy Distribution in HC FeMn and SiMn - Energy vs Exergy Analyses 

      Larssen, Trine Asklund; Kero, Ida; Tangstad, Merete (Peer reviewed; Journal article, 2019)
      The metal producing industry is a high consumer of energy and large amounts of excess heat are produced. Increasing the energy efficiency would be beneficial, both in terms of the environment and also from an economical ...
    • Energy efficiency and using less – a social sciences and humanities annotated bibliography 

      Mourik, Ruth; Jeuken, Yvette; de Zeeuw, Mariska; Uitdenbogerd, Diana; van Summeren, Luc; Wilhite, Harold Langford; Robison, Rosie; Heidenreich, Sara; Blahová, Michaela; Pidoux, Blandine; Kern-Gillard, Thomas; Arrobbio, Osman; Throndsen, William; Fox, Emmet; Nikolaev, Angel; Radulov, Lulin; Sari, Ramazan; Sumpf, Patrick; Balint, Lenke (Research report, 2017)
    • Energy Efficiency Effects of Vectorization in Data Reuse Transformations for Many-Core Processors—A Case Study 

      Al Hasib, Abdullah; Natvig, Lasse; Kjeldsberg, Per Gunnar; Cebrian, Juan Manuel (Journal article; Peer reviewed, 2017)
      Thread-level and data-level parallel architectures have become the design of choice in many of today’s energy-efficient computing systems. However, these architectures put substantially higher requirements on the memory ...
    • Energy efficiency in Norwegian households - identifying motivators and barriers with a focus group approach 

      Kløckner, Christian; Sopha, Bertha Maya; Matthies, Ellen; Bjørnstad, Even (Journal article; Peer reviewed, 2013)
      This paper describes the theoretical background and results of a focus group study on determinants of energy related behaviour in Norwegian households. 70 Norwegians between 18 and 79 years of age participated in eight ...
    • Energy efficiency of hydronic space-heating distribution systems in super-insulated residential buildings 

      Georges, Laurent; Iwanek, Tomasz; Thalfeldt, Martin (Chapter, 2017)
      In space-heating (SH) dominated climates, superinsulated building envelopes, such as passive houses (PH), are often promoted to drastically reduce SH needs. Using hydronic SH distribution in PH, thermal losses from pipes ...
    • Energy efficiency of respiration in mature and newborn reindeer 

      Solberg, Simon Birger Byremo; Kjelstrup, Signe; Magnanelli, Elisa; Kizilova, Nataliya; Barroso, Iratxe Lorea Casado; Acquarone, Mario; Folkow, Lars (Peer reviewed; Journal article, 2020)
      Reindeer (Rangifer tarandus) have evolved elaborate nasal turbinate structures that are perfused via a complex vascular network. These are subject to thermoregulatory control, shifting between heat conservation and ...
    • Energy efficiency of strategies to enable temperature zoning during winter in highly-insulated residential buildings equipped with balanced mechanical ventilation 

      Georges, Laurent; Selvnes, Eirik; Heide, Vegard; Mathisen, Hans Martin (Journal article; Peer reviewed, 2019)
      To reduce the space-heating needs, balanced mechanical ventilation equipped with a heat recovery is frequently implemented in highly-insulated residential buildings. This standard ventilation strategy tends to homogenize ...
    • Energy efficiency of underwater robots 

      Kelasidi, Eleni; Pettersen, Kristin Ytterstad; Gravdahl, Jan Tommy (Conference object; Journal article; Peer reviewed, 2015)
      Increasing efficiency by improving locomotion methods is a key issue for underwater robots. In this paper, we investigate the power consumption of different underwater robotic systems and compare the energy efficiency of ...
    • Energy efficiency of underwater snake robot locomotion 

      Kelasidi, Eleni; Pettersen, Kristin Ytterstad; Gravdahl, Jan Tommy (Journal article; Peer reviewed, 2015)
      Energy efficiency is one of the main challenges for long-term autonomy of underwater robotic systems. In this paper, we present results regarding the power consumption of underwater snake robots. In particular, we investigate ...
    • Energy efficient design of membrane processes by use of entropy production minimization 

      Magnanelli, Elisa; Wilhelmsen, Øivind; Johannessen, Eivind; Kjelstrup, Signe (Journal article; Peer reviewed, 2018)
      To minimize entropy production means to reduce the lost work in a process, and to optimize the use of energy resources. Due to the need for re-compression, membrane units for separation of CO2 from natural gas require large ...
    • Energy efficient distillation 

      Skogestad, Sigurd; Halvorsen, Ivar Johan (Journal article; Peer reviewed, 2011)
      Distillation is responsible for a significant amount of the energy consumption of the world’s process industry and also in the natural gas processing. There is a significant energy saving potential that can be obtained by ...
    • Energy efficient multiejector CO2 cooling system for high ambient temperature 

      Singh, Simarpreet; Maiya, Prakash; Hafner, Armin; Banasiak, Krzysztof; Nekså, Petter (Peer reviewed; Journal article, 2020)
      Experimental evaluation of a multiejector CO2 cooling system of 33 kW cooling capacity is conducted for an Indian supermarket at high ambient temperature context. The test-rig is designed to depict the actual supermarket ...
    • Energy equality and energy sufficiency: new policy principles to accelerate the energy transition 

      Pellegrini-Masini, Giuseppe (Chapter, 2019)
      Energy equality (EE) is a novel concept, and its tentative definition was recently presented as follows: “Providing all individuals with equal opportunities of using energy services, energy technologies, and consuming ...
    • Energy flexibility potential of domestic hot water systems in apartment buildings 

      Sørensen, Åse Lekang; Walnum, Harald Taxt; Sartori, Igor; Andresen, Inger (Peer reviewed; Journal article, 2021)
      Domestic Hot Water (DHW) storage tanks are identified as a main source of flexible energy use in buildings. As a basis for energy management in apartment buildings, this paper describes the aggregated DHW use in a case ...
    • Energy flow analysis of a poultry processing plant 

      Svendsen, Eirik Starheim; Hafner, Armin; Selvnes, Håkon; Widell, Kristina Norne (Chapter, 2020)
      More efficient utilization of primary energy resources can be achieved with thermal energy storages and it is a measure to limit global warming. The thermal energy demands of industrial food-processing plants are non-uniform ...
    • Energy generation and storage by salinity gradient power: A model-based assessment 

      Jalili, Zohreh; Krakhella, Kjersti Wergeland; Einarsrud, Kristian Etienne; Burheim, Odne Stokke (Journal article; Peer reviewed, 2019)
      Three energy storage systems based on mixing and desalination of solutions with different salt concentrations are presented, namely, reverse electrodialysis, pressure retarded osmosis and capacitive Donnan potential, coupled ...
    • Energy Justice and Intergenerational Ethics: Theoretical Perspectives and Institutional Designs 

      Pellegrini-Masini, Giuseppe; Corvino, Fausto; Löfquist, Lars (Chapter, 2020)
      In this work, we discuss how both contractualism, in the Western tradition, and communitarianism, in the African interpretation based on the idea of Ubuntu, conceptualise intergenerational justice. Even though both ...
    • Energy Landscape of Alginate-Epimerase Interactions Assessed by Optical Tweezers and Atomic Force Microscopy 

      Håti, Armend Gazmeno; Aachmann, Finn Lillelund; Stokke, Bjørn Torger; Skjåk-Bræk, Gudmund; Sletmoen, Marit (Journal article, 2015)
      Mannuronan C-5 epimerases are a family of enzymes that catalyze epimerization of alginates at the polymer level. This group of enzymes thus enables the tailor-making of various alginate residue sequences to attain various ...
    • Energy Management Modelling Under Real-time Approach 

      Oleinikova, Irina; Mutule, Anna; Zikmanis, Ivars; Grebesh, Ervins (Chapter, 2019)
      The paper describes modelling, design and testing of the developed Energy Management Strategy (EMS) system simulation model. The project was carried out by NTNU and IPE contributing to CloudGrid, with the aim to develop a ...
    • Energy Management System for a Photovoltaic System With Battery Storage Participating in Grid Voltage Quality Improvement 

      Ranaweera, Iromi; Midtgård, Ole-Morten (Chapter, 2015)
      Coupling an energy storage to a photovoltaic (PV) system not only increases the self-consumption but also solves the over-voltage issues if the cycling of the storage is properly controlled. Whatever the application the ...