• Acceptable air velocities using demand-controlled ventilation for individual cooling 

      Thunshelle, Kari; Nordby, Henrik S.; Solberg, Håkon Rikoll; Holøs, Sverre Bjørn; Schild, Peter G. (Peer reviewed; Conference object; Journal article, 2020)
      One of the main challenges in highly insulated buildings is the increasing share of energy demand for cooling. New solutions for low energy cooling are needed. Individual cooling by demand-controlled ventilation and use ...
    • Air leakage paths in buildings: Typical locations and implications for the air change rate 

      Gullbrekken, Lars; Bunkholt, Nora Schjøth; Geving, Stig; Rüther, Petra (Peer reviewed; Conference object; Journal article, 2020)
      The harsh Norwegian climate requires buildings designed to high standards. An airtight building envelope is crucial to achieve an energy efficient building and to avoid moisture problems. Results from the SINTEF Building ...
    • Analysis of energy signatures and planning of heating and domestic hot water energy use in buildings in Norway 

      Tereshchenko, Tymofii; Ivanko, Dmytro; Nord, Natasa; Sartori, Igor (Conference object; Journal article; Peer reviewed, 2019)
      Widespread introduction of low energy buildings (LEBs), passive houses, and zero emission buildings (ZEBs) are national target in Norway. In order to achieve better energy performance in these types of buildings and ...
    • Analysis of monthly and daily profiles of DHW use in apartment blocks in Norway 

      Ivanko, Dmytro; Walnum, Harald Taxt; Sørensen, Åse Lekang; Nord, Natasa (Peer reviewed; Conference object; Journal article, 2020)
      Profiles of domestic hot water (DHW) use give valuable information for achieving energy saving in buildings. In this article, analysis of monthly and hourly profiles in apartment blocks in Norway was performed. The aim was ...
    • Climate change impacts and fungal decay in vulnerable historie buildings at Svalbard 

      Flyen, Anne Cathrine; Flyen, Cecilie; Mattsson, Johan (Peer reviewed; Conference object; Journal article, 2020)
      This paper emphasises on degradation of wood in cultural heritage structures at Svalbard. Nowhere else does global heating occur faster. Negative impacts of climate change will increase the strain on wooden structures and ...
    • Compact wooden roofs with smart vapour barrier – Pilot project experiences 

      Bunkholt, Nora Schjøth; Gullbrekken, Lars; Geving, Stig; Kvande, Tore (Peer reviewed; Conference object; Journal article, 2020)
      Compact roofs are normally built without organic materials between the vapour barrier and the roof membrane due to moisture safety risks. However, laboratory measurements indicate that organic materials could be used ...
    • Cost optimal investment in energy efficiency measures and energy supply system in a neighbourhood in Norway 

      Walnum, Harald Taxt; Bagle, Marius; Sørensen, Åse Lekang; Fufa, Selamawit Mamo (Peer reviewed; Journal article, 2021)
      Building renovation is a key measure to reduce energy consumption and Greenhouse gas (GHG) emissions, and ease the transition to a fully renewable energy system. This paper applies the IEA EBC Annex 75 methodology for ...
    • Development of a data-driven model to characterize the heat storage of the building thermal mass in energy planning tools 

      Georges, Laurent; Storlien, Elin; Askeland, Magnus; Lindberg, Karen Byskov (Peer reviewed; Journal article, 2021)
      In the one hand, energy planning tools compute the cost-optimal investment in the energy system minimizing life cycle costs (LCC). These tools often consider optimal control. The building (or cluster of buildings) is ...
    • DHW tank sizing considering dynamic energy prices 

      Nord, Natasa; Ding, Yuemin; Ivanko, Dmytro; Walnum, Harald Taxt (Peer reviewed; Journal article, 2021)
      Due to the rapid development of the building stock in Norway, the energy use in this segment is drastically increasing. Therefore, improving the energy performance of buildings becoming an urgent problem. Among technical ...
    • 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 ...
    • Experiences with CLT Construction in Norway 

      Wahlstrøm, Simen; Gullbrekken, Lars; Elvebakk, Kristin; Kvande, Tore (Peer reviewed; Conference object; Journal article, 2020)
      The use of cross-laminated timber (CLT) elements in buildings is an innovative and upcoming construction method. In Norway, due to its eco-friendly potential, more widespread use of the method is expected despite limited ...
    • Experiences with external drainage systems from compact roofs in Norwegian climates 

      Andenæs, Erlend; Skagseth, Vegard Andre; Bunkholt, Nora Schjøth; Kvande, Tore; Lohne, Jardar (Peer reviewed; Conference object; Journal article, 2020)
      To reduce loads on urban drainage systems and facilitate local infiltration of stormwater, it is desired to lead runoff water from roofs through external drains and into the local soil. However, in cold climates, situations ...
    • Fire safety of ventilation systems and fire incidence reports in Norwegian schools 

      Yang, Aileen; Aamodt, Andreas; Samuelsen, Per Henning; Olsø, Brynhild Garberg; Haukø, Anne-Marit; Meraner, Christoph (Peer reviewed; Journal article, 2022)
      School fires are causes of concern in many countries. Although most of these fires are minor in terms of heat release rate, the amount of smoke produced can be substantial and cause significant damage beyond the room of ...
    • Hygrothermal conditions in Cross Laminated Timber (CLT) dwellings 

      Tingstveit, Merethe Solvang; Nielsen, Henrik Kofoed; Risholt, Birgit Dagrun (Peer reviewed; Journal article, 2020)
      The use of CLT has been increasing the last decade, and a subsequently focus on documentation of the accompanying indoor climate and exposed wooden surfaces on human well-being. This study presents the results of a measurement ...
    • 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 ...
    • Impact of Typical Faults Occurring in Demand-controlled Ventilation on Energy and Indoor Environment in a Nordic Climate 

      Andersen, Kamilla Heimar; Holøs, Sverre Bjørn; Yang, Aileen; Thunshelle, Kari; Fjellheim, Øystein; Jensen, Rasmus (Peer reviewed; Conference object; Journal article, 2020)
      This study evaluates typical faults occurring in demand-controlled ventilation (DCV) system and the impact on three output results: energy use, thermal comfort, and indoor air quality. The methodologies used in this study ...
    • Indoor climate and energy performance in nearly zero energy day care centers and school buildings 

      Ahmed, Kaiser; Kuusk, Kalle; Heininen, Henrik; Arumägi, Endrik; Kalamees, Targo; Hasu, Tero; Lolli, Nicola; Kurnitski, Jarek (Journal article; Peer reviewed, 2019)
      This study presents the assessment of actual indoor climate condition and energy performance in eight NZEB school and daycare centers of NERO H2020 project. Physical parameters such as indoor temperature, relative humidity, ...
    • Measurement of domestic hot water consumption in hotel rooms with different basin and shower mixing taps 

      Walnum, Harald Taxt; Stråby, Karolina; Sørensen, Åse Lekang (Peer reviewed; Journal article, 2021)
      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 shows results from a measurement ...
    • Potentials for emission reduction and value creation in the rehabilitation of existing building stock using input-output analysis 

      Perez-Valdes, Gerardo Alfredo; Fufa, Selamawit Mamo; Fjellheim, Kristin (Peer reviewed; Journal article, 2022)
      Given that most of the world’s building stock for the next 30 years already exists today, renovation of existing buildings and infrastructure represent an important pathway towards a more sustainable future. The aim of ...
    • Risk-based Optimization of Sensor Distribution in Roof Constructions – A Conceptual Study 

      Gradeci, Klodian; Time, Berit; Gullbrekken, Lars (Peer reviewed; Conference object; Journal article, 2020)
      The objective of placing moisture sensors in roof constructions is to warn about leakage events, and thus avoid undesirable consequences. However, considering that placing an additional sensor is directly related to ...