Publications
Nanotech Based Vacuum Insulation Panels for Building Applications
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Publication Year:
2016
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2016
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Veien mot nullutslippsbygg
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2015
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2015
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Eit levande laboratorium. Eksperiment i nullutsleppsbygg på Gløshaugen
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2016
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2016
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Byggenæringen må ta og tar klimautfordringene på alvor
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Publication Year:
2016
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2016
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Performance of a lab-scale membrane-based energy exchanger
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Publication Year:
2015
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Publication Year:
2015
Abstract Efficient energy recovery from used air with the goal of reducing energy use is important for realizing low energy houses. Rotary heat exchangers are very energy efficient, but have the drawback of transferring odours from exhaust air to fresh supply air. To avoid this, flat plate heat exchangers are commonly used where odour transfer might cause problems. Nevertheless, these may not properly handle water condensation and frost formation at low outdoor temperatures. The so-called membrane-based energy exchangers are an alternative to the flat plate heat exchanger. In a membrane-based exchanger, moisture is transferred from the humid exhaust air to…
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Journal papers
Performance of a lab-scale membrane-based energy exchanger
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Publication Year:
2015
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Publication Year:
2015
Abstract Efficient energy recovery from used air with the goal of reducing energy use is important for realizing low energy houses. Rotary heat exchangers are very energy efficient, but have the drawback of transferring odours from exhaust air to fresh supply air. To avoid this, flat plate heat exchangers are commonly used where odour transfer might cause problems. Nevertheless, these may not properly handle water condensation and frost formation at low outdoor temperatures. The so-called membrane-based energy exchangers are an alternative to the flat plate heat exchanger. In a membrane-based exchanger, moisture is transferred from the humid exhaust air to…
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Simulating switchable glazing with energy plus: an empirical validation and calibration of a thermotropic glazing model
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Publication Year:
2015
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Publication Year:
2015
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Conference papers
Vil ZEB-bygg sprenge nettet? Effektprofil for fremtidens bygg
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Publication Year:
2015
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2015
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Life Cycle GHG Emissions of Material Use in the Living Laboratory
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Publication Year:
2015
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Publication Year:
2015
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Strategier for utforming av smarte bygg i Zero Emission Buildings
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Publication Year:
2015
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Publication Year:
2015
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Teknologien verden vil ha. Her er listen over store løsninger og bitte små dingser som kan redde klimaet. Kanskje kan de også gjøre livet godt å leve?
Publication Year:
2015
Publication Year:
2015
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Media contributions
Zero Emission Buildings – fra forskning til praksis – Nye muligheter med Living Lab og Test cell – Erfaringer fra demonstrasjonsbyggene
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Publication Year:
2015
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Publication Year:
2015
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Isolasjon i bygg «Å bygge energieffektivt handler om mye mer enn bare tykke vegger»
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2015
Publication Year:
2015
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Konsekvenser av nye energiregler – Hva betyr egentlig de foreslåtte energikravene
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2015
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2015
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Kostnadseffektive teknologiløsninger for nullenergibygg i Norge. Hvilke virkninger vil dette ha for effektprofilen for fremtidens bygg?
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2015
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2015
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Skal bygge verdens mest energivennlige skole på Kolstad
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2015
Publication Year:
2015
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Materialer i energi- og klimaregnskapet - Hvor viktig er det?
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Publication Year:
2015
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Publication Year:
2015
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User evaluation of the indoor climate of the first passive house school in Norway
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Publication Year:
2015
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Publication Year:
2015
Abstract The indoor climate of the first passive house school in Norway was evaluated with the aid of a questionnaire (Örebro) with approximately 340 respondents, and three interview rounds with a total of 23 informants. The intention was to reveal whether the users experienced any problems or possibly better conditions than in a regular school building. The interviews showed that, overall, the users were satisfied with the building. The survey showed generally good results for the indoor climate. Questionnaire results were compared with reference material consisting of data for average school buildings. The indoor climate of Marienlyst School was better…
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Perspective of aerogel glazings in energy efficient buildings
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Publication Year:
2015
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Publication Year:
2015
Abstract The application perspective of aerogel glazings in energy efficient buildings has been discussed by evaluating their energy efficiency, process economics, and environmental impact. For such a purpose, prototype aerogel glazing units have been assembled by incorporating aerogel granules into the air cavity of corresponding double glazing units, which enables an experimental investigation on their physical properties and a subsequent numerical simulation on their energy performance. The results show that, compared to the double glazing counterparts, aerogel glazings can contribute to about 21% reduction in energy consumptions related to heating, cooling, and lighting; payback time calculations indicate that the return…
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Skal skape verdens mest klimavennlige kontorbygg
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2015
Publication Year:
2015
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Zero Village Bergen. Norges mest ambisiøse null-utslipps-områdeprosjekt
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Publication Year:
2015
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Publication Year:
2015
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Fra nullutslippbygg til nullutslippområder - hva kreves for å få til dette?
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Publication Year:
2015
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2015
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Calcined clay as an alternative binder: A further step towards achieving thermally insulating structural concrete based on aerogel
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Publication Year:
2015
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Publication Year:
2015
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Naturlig ventilasjon i nullutslippsbygg
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Publication Year:
2012
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Publication Year:
2012
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Fuktbufring i materialer og påvirkning på energibehov – en kunnskapstatus
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Publication Year:
2015
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Publication Year:
2015
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Naturlig ventilasjon i nullutslippsbygg
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Publication Year:
2015
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Publication Year:
2015
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Myter og fakta om fuktbufring og energisparing – Ny ZEB-rapport om gammelt tema
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Publication Year:
2015
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Publication Year:
2015
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Popular Science Articles
Influence of the occupant’s behavior on the heating needs and the energy system performance : A case of well-insulated detached houses in the cold climates
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Publication Year:
2015
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Publication Year:
2015
Abstract Modeling simplification related to occupant’s behavior is a major cause of gap between actual and model’s predicted energy use of buildings. This paper aims to identify those parameters of realistic occupants-related heat gains that actually cause this gap. The investigation therefore, systematically distinguishes the occupant behavior using three behavior parameters, namely: the occupancy behavior, the appliance use behavior and the family size. The effect of these parameters is investigated on a building for two different insulation standards using heat pump as energy supply system. The results identifies the occupancy patterns and the household size as two major parameters that explains a large portion…
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Energieffektivisering i bygninger – det enkleste klimatiltaket på kort sikt
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Publication Year:
2015
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Publication Year:
2015
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Books
Energy use consequences of ventilative cooling in a ZEB residential building
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Publication Year:
2015
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Publication Year:
2015
Abstract New buildings have to satisfy ever-tightening standards regarding energy efficiency and consumption. This results in higher insulation levels and lower air leakages that reduce heating demands. However, even at moderate outdoor temperatures these buildings are easily warmed up to such a degree that in order to ensure acceptable indoor environment quality, removal of excess heat becomes unavoidable. Use of electric energy related to mechanical cooling is considered incompatible with achieving zero energy buildings (ZEB). The use of ventilative cooling (VC) in combination with mechanical cooling means energy consumption reduction due to lower use of mechanical ventilation and cooling system.This…
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Effective ventilation in high performance buildings
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Publication Year:
2015
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Publication Year:
2015
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Fiber reinforced hollow silica nanospheres for thermal insulation applications
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Publication Year:
2015
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Publication Year:
2015
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Hollow silica nanospheres as a stepping-stone toward thermal superinsulation materials
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Publication Year:
2015
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Publication Year:
2015
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Experimental investigations of vacuum insulation panels in an alkaline environment
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Publication Year:
2015
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Publication Year:
2015
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Evaluering av boliger med lavt energibruk
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Publication Year:
2015
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Publication Year:
2015
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ZEB Living Lab and Test Cell Lab
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Publication Year:
2015
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Publication Year:
2015
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Conference presentations
The ZEB Research Centre and Pilot Buildings
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Publication Year:
2015
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Publication Year:
2015
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Sensitivity analysis of the life cycle emissions from an NZEB concept
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Publication Year:
2015
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Publication Year:
2015
Abstract The net-zero emissions building (nZEB) performance is investigated for building operation and embodied emissions in materials for Norway’s cold climate. An nZEB concept for new residential buildings was developed in order to understand the balance and implications between operational and embodied emissions over the building’s life. The main drivers for the CO2 equivalent (CO2eq) emissions were revealed for the building concept through a detailed emissions calculation.Previous investigations showed that the criterion for zero emissions in operation is easily reached by the nZEB concept (independent of the CO2eq factor considered). Nevertheless, embodied emissions from materials appeared significant compared to operational emissions. It was found that an…
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Solar energy for zero energy buildings - a comparison between solar thermal, PV and photovoltaic-thermal (PV/T) systems
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Publication Year:
2015
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Publication Year:
2015
Abstract In a net zero energy building (nZEB), the energy demand from the operation of the building is met by renewable energy generated on site. Buildings require energy both in the form of heat and electricity, and solar energy utilization is important in order to reach a net zero energy balance. In projects with ambitious energy targets or limited available areas for local energy generation, solar thermal and photovoltaic (PV) installations will eventually compete for space on roofs and facades. Hybrid photovoltaic–thermal (PV/T) modules, in which heat and electricity is generated simultaneously, are therefore an interesting technology for building applications,…
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NorDan skyvedør med VIP i Living Lab – beregning av U-verdi
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Publication Year:
2015
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Publication Year:
2015
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Reports
A zero emission concept analysis of a single family house: Part 2 sensitivity analysis
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Publication Year:
2015
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Publication Year:
2015
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Reports
Bygninger – bransjens bidrag til bærekraftig utvikling
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Publication Year:
2015
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Publication Year:
2015
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Identifying key design parameters of the integrated energy system for a residential Zero Emission Building in Norway
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Publication Year:
2015
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Publication Year:
2015
Abstract This study examined an integrated solution of the building energy supply system consisting of flat plate solar thermal collectors in combination with a ground-source heat pump and an exhaust air heat pump for the heating and cooling, and production of domestic hot water. The supply energy system was proposed to a 202 m2 single-family demo dwelling (SFD), which is defined by the Norwegian Zero Emission Building standard. The main design parameters were analyzed in order to find the most essential parameters, which could significantly influenced the total energy use. This study found that 85% of the total heating demand of the…
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The ZEB Living Laboratory at the Norwegian University of Science and Techonology: a zero emission house for engineering and social science experiments
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Publication Year:
2015
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Publication Year:
2015
Summary At the Research Centre on Zero Emission Buildings of NTNU, a new test facility (Living Laboratory) is currently in the final stage of construction and will start its operation in summer 2015. The Living Laboratory was designed to carry out experimental investigations at different levels, ranging from envelope to building equipment components, from ventilation strategies to action research on lifestyles and technologies, where interactions between users and low (zero) energy buildings are studied.The test facility is a single family house with a gross volume of approximately 500 m3 and a heated surface (floor area) of approximately 100 m2. It…
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Building regulations cannot assure ambitious energy upgrading of existing residential buildings according to Norway’s national targets
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Publication Year:
2015
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Publication Year:
2015
Summary This paper provides a summary of main content and conclusions from a report on evaluation of existing potential and scenario studies concerning renovation of residential buildings. In addition to literature studies there were conducted own calculations adapted from the most important Norwegian scenario model. Also studies addressing design of regulatory requirements for measures with existing buildings were reviewed. The results were discussed in expert workshops. The technical potential for energy upgrade seems to be under- rather than overestimated. On the other hand, the paper substantiates that the renovation rate is lower than assumed in the scenarios, and illustrates that…
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Kunnskapsstatus – Fuktbufring I materialer og påvirkning på energibehov
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Publication Year:
2015
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Publication Year:
2015
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