• Developing a scenario calculator for smart energy communities in Norway: Identifying gaps between vision and practice 

      Walnum, Harald Taxt; Hauge, Åshild Lappegard; Lindberg, Karen Byskov; Mysen, Mads; Nielsen, Brita Fladvad; Sørnes, Kari (Journal article; Peer reviewed, 2019)
      Key Performance Indicators are important instruments, both in defining high-level goals (international or national) and when planning smart energy communities. However, there is often a gap between the high-level goals, ...
    • Development and analysis of hourly DHW heat use profiles in nursing homes in Norway 

      Ivanko, Dmytro; Walnum, Harald Taxt; Nord, Natasa (Peer reviewed; Journal article, 2020)
      Representative profiles for domestic hot water (DHW) heat use are the main instruments for improvement in operation and design of DHW systems in buildings. To improve the existing method for DHW heat use profiles development ...
    • Energy consumption for domestic hot water use in Norwegian hotels and nursing homes 

      Walnum, Harald Taxt; Sørensen, Åse Lekang; Ludvigsen, Bjørn; Ivanko, Dmytro (Journal article; Peer reviewed, 2019)
      Domestic Hot Water (DHW) production constitutes a significant proportion of the energy demand of modern buildings, and as the building envelope is improved the share increases. This article discusses the results from a ...
    • Experimental and theoretical investigation of a hydrogen liquefaction process 

      Walnum, Harald Taxt; Rasmussen, Øystein (Master thesis, 2009)
      The world approaches a challenging era where new solutions to the arising energy and climate problems must be found. As the need for clean energy carriers increases due to growing energy demand and increased global warming, ...
    • Experimental and theoretical investigation of a hydrogen liquefaction process 

      Rasmussen, Øystein; Walnum, Harald Taxt (Master thesis, 2009)
    • Heat analysis for energy management in neighbourhoods: case study of a large housing cooperative in Norway 

      Sørensen, Åse Lekang; Lindberg, Karen Byskov; Walnum, Harald Taxt; Sartori, Igor; Aakenes, Ulf Roar; Andresen, Inger (Journal article; Peer reviewed, 2019)
      As a basis for energy management in apartment blocks, this paper characterises heat use in a large housing cooperative in Norway, with in total 1,058 apartments. Heat measurements with hourly resolution are available from ...
    • Identifying typical hourly DHW energy use profiles in a hotel in Norway by using statistical methods 

      Ivanko, Dmytro; Nord, Natasa; Sørensen, Åse Lekang; Plesser, Thale Sofie Wester; Walnum, Harald Taxt; Sartori, Igor (Journal article; Peer reviewed, 2019)
      The aim of this research is to improve the existing approaches of domestic hot water (DHW) energy use analysis in buildings. A comprehensive statistical analysis of hourly DHW energy use for a hotel in Oslo, Norway, was ...
    • Pilot Building Powerhouse Kjørbo - As Built Report 

      Sørensen, Åse Lekang; Andresen, Inger; Walnum, Harald Taxt; Alonso, Maria Justo; Fufa, Selamawit Mamo; Jenssen, Bjørn; Rådstoga, Olav; Hegli, Tine; Fjeldheim, Henning (ZEB Project report;, Research report, 2017)
    • Prediction of DHW energy use in a hotel in Norway 

      Ivanko, Dmytro; Nord, Natasa; Sørensen, Åse Lekang; Sartori, Igor; Plesser, Thale Sofie Wester; Walnum, Harald Taxt (Journal article; Peer reviewed, 2019)
      Domestic hot water (DHW) systems are significant consumers of energy in buildings. This article is dedicated to hourly and daily DHW energy use modeling, with the aim of achieving energy savings in buildings. The methods ...
    • Superchilling, ice fraction and quality 

      Stevik, Astrid; Haugen, Nils Erland L; Duun, Anne Sissel; Walnum, Harald Taxt; Nordtvedt, Tom Ståle (Chapter, 2010)
      The scope of the current experiments was to superchill a selection of fresh food by two superchilling methods followed by extensive storage studies and monitoring of quality during superchilled storage. Several methods for ...