Publications
Naturlig ventilasjon i nullutslippsbygg
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Sustainability in Practice: Social Science Perspectives on Architectural Design, Research and the Implementation of Building Solutions
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Fra et refleksivt praktiker-ståsted, undersøker avhandlingen utfordringer med kunnskapsintegrasjon på tvers av bygningssektorene. Et kritisk standpunkt blir testet konseptuelt og eksperimentelt i et tverrfaglig rammeverk som binder sammen litteratur fra arkitektur, byggvitenskap, byplanlegging og teknologi- og vitenskapsstudier (STS). Det empiriske grunnlaget for studien er intervjuer og spørreundersøkelser, som sammen utgjør et case fra Sveits. Avhandlingen evaluerer antagelser og praksiser knyttet til politikk for bærekraft og strategier for karbonreduksjon, i forhold til bygninger og det bygde miljøet. Studien er artikkelbasert, og rommer fire artikler som på forskjellige måter knytter teoretiske diskusjoner i feltet til praksis og politikkutvikling. Addressing the problem…
Published in
Reports
The high performance thermal building insulation materials of beyond tomorrow – from consept to experimental investigations
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Published in
Conference papers
Laboratorier for morgendagens løsninger
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
High performance building services in Zero Emission Buildings – do all the electrical gadgets really save energy?
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations
Vindusløsninger ved energieffektivisering av eneboliger
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Accelerated Laboratory Ageing of Vacuum Insulation Panels
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference papers
Life Cycle Cost Perspectives on Zero Energy Renovation of a Single Family House
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
The Skarpnes resisdential development
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
The zero-energy project Skarpnes residential development in Arendal in Norway consists of a total of 40 dwelling units. The energy goal of the buildings is net zero-energy on a yearly level. In addition, the greenhouse gas emissions (GHG) related to the operational energy of the buildings shall also be zero on an annual basis. There is also an aim achieving low embodied energy and GHG emissions related to the buildings materials and products. The thermal demand of the buildings will be covered by heat pumps and thermal solar collectors. To reach the zero energy/emission goal, the roofs are partly covered…
Published in
Conference papers
All buildings are solar buildings – Zero energy and zero emission buildings
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Published in
Conference presentations
Three scenarios for the future of sustainable engineering in the built environment
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
The Norwegian zero emission neighbourhood Aadland
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Abstract The ambition level for the zero emission neighbourhood Aadland is that the area will be self supplied with both thermal and electric energy. This paper presents how emissions from operation of the 500 dwellings are offset by on-site renewable energy production. The paper also describes a procedure for how to deal with embodied emissions from materials in an early stage design phase. The study verifies that it is possible to reach a zero emission balance for the neighbourhood. Zero emission from operation is achievable as an average for the neighbourhood. For individual zero emission buildings this also includes embodied emissions from materials and construction in…
Published in
Conference papers
Effect of storage and curing conditions at elevated temperatures on aerogel-incorporated mortar samples based on UHPC recipe
Authors:
Publication Year:
2016
Authors:
Publication Year:
2016
Abstract The effect of elevated temperature during storage and curing of ultra-high performance concrete (UHPC) formulated aerogel-incorporated mortar (AIM) samples was investigated. It was found that an effective aerogel loading of 60 vol% of total bulk volume was possible for producing AIM samples with suitable thermal and mechanical properties under optimized storing and curing conditions. AIM samples with compressive strengths of up to ≈19 MPa was achieved and the corresponding thermal conductivity was ≈0.4 W/(mK). For more insulating concrete, 70 vol% aerogel was needed and AIM samples with thermal conductivity as low as ≈0.1 W/(mK) were cast. In general, AIM samples with strengths of up…
Published in
Journal papers
Robustness Classification of Building Materials, Building Assemblies and Buildings with respect to PrevailingLoads incorporating Climate and Service Life
Authors:
Publication Year:
2009
Authors:
Publication Year:
2009
Published in
Reports
Energy performance assessment of an advanced responsive multifunctional facade module: first results of an experimental campaign
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Responsive Building Elements (RBEs) are technologies for the exploiting at the building scale renewable energy sources and the opportunities offered by the environment. Among the RBE concepts identified by the IEA-ECBCS Annex 44, Advanced Integrated Façades (AIFs) is probably one of the most promising technologies. Important players in the field of the façade have started to develop integrated modular façade systems (Multifunctional Façade Modules - MFMs), with a dynamic behaviour and interacting with the other building services, in order to reduce the building energy consumption and maximize the indoor comfort conditions. In the frame of a research activity aimed at…
Published in
Conference papers
Validation of user profiles for building energy simulation
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Post-Occupancy Evaluation of Low-Energy and Passive House Apartments in the Løvåshagen Cooperative - Occupant Behavior and Satisfaction
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Experience with low-energy and passive house buildings forms the basis for the further development of zero-emission buildings. A post-occupancy evaluation of the Løvåshagen cooperative is therefore conducted by means of user surveys and measurement of indoor climate parameters, energy use and window opening time. The goal of the post-occupancy evaluation is to obtain information about how occupants use and experience low-energy and passive house dwellings, especially with regard to heating and ventilation. In addition, the impact of user behavior on the indoor climate and energy use will be assessed. In this paper, the results of the user survey regarding user…
Published in
Conference papers
Download attachments:
Energy performance assessment of an advanced integrated façade through experimental data analysis
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Abstract This paper deals with the experimental assessment of the energy performance of two Advanced Integrated Façade modules (AIF) characterized by two very similar configurations. The two AIF modules were installed on the south-exposed façade of an outdoor test cell facility (a real-scale mockup of an office building) and continuous measurements were carried out for more than one year. Data collected during the experimental campaign were analyzed to evaluate the energy performance and thermo-physical behaviour of the AIF modules. The performances of the two systems were assessed by comparison and by means of conventional and advanced synthetic metrics. The results…
Published in
Journal papers
CO2 emissions in different scenarios of electricity generation in Europe
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Reports
Comfort and Energy Efficiency Recommendations for Net Zero Energy Buildings
Authors:
Publication Year:
2010
Authors:
Publication Year:
2010
Published in
Conference papers
Load Matching and Grid Interaction of Net Zero Energy Buildings
Authors:
Publication Year:
2010
Authors:
Publication Year:
2010
Published in
Conference papers
Energy efficient buildings – status and challenges
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Published in
Conference presentations
Fra energisluk til nullenergihus – Hvor god tid har vi ?
Authors:
Publication Year:
2010
Authors:
Publication Year:
2010
Published in
Conference presentations
Performance of a lab-scale membrane-based energy exchanger
Authors:
Publication Year:
2015
Authors:
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…
Published in
Journal papers
State-of-the-Art Building Integrated Photovoltaics
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Journal papers
All buildings are still solar buildings
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations
Ombygging av eneboliger
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Published in
Conference presentations
Download attachments:
Impact on thermal comfort of conventional and advanced glazed façades in office buildings
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Transparent façades are often used to increase the aesthetic value of the building and to provide visual contact with the outdoor. However, together with several positive features, it should be mentioned that glass façades may reduce the quality of the indoor thermal environment, causing thermal discomfort especially due to overheating in the summer season. The aim of this paper is to compare the implications on thermal comfort of different glazed façades, whose surface temperatures have been monitored during several experimental campaigns. The analyzed glazing systems were double skin façades and non conventional single skin façades integrating different materials (i.e. phase…
Published in
Conference papers
Brukerundersøkelse om innemiljø på Marienlyst skole
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Innemiljøet på Marienlyst skole i Drammen, Norges første "passivhus-skole", er evaluert gjennom intervju og spørreskjema med brukere. Det er utført tre intervjurunder i løpet av 2011 med totalt 23 informanter; lærere, elever og representanter fra driftspersonalet. I tillegg er det utført en spørreskjemaundersøkelse om inneklimaet i slutten av 2011, for alle elever og ansatte.
Published in
Reports
Hvilke programmer fins - brukbarhet og brukerterskel
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Utredning av ZEB-boligområde på Ådland i Bergen
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Reports
Simulating switchable glazing with energy plus: an empirical validation and calibration of a thermotropic glazing model
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Published in
Conference papers
Energy Retrofits of Residential Buildings - impact on architectural quality & occupants' comfort
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
In order to be successful on the market, energy-saving measures for existing buildings need to be promoted with arguments that are directly relevant to the users. Initial marketing for energy retrofitting has been based on monetary profits from future energy savings. However, for most households in Europe, energy bills for the home account for only 3-4 percent of disposable income, hence are not a major concern. As a result of inappropriate promotion of energy savings for existing buildings, less than 1 percent of over 300.000 projects certified by BREEAM are refurbishments. Apparently, the promotion of energy retrofitting needs to be…
Published in
Reports
Key Elements of and Materials Performance Targets for Highly Insulating Window Frames
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Journal papers
Large scale measurements and calculations of wall elements with vacuum insulation panels (VIPs)
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Published in
Conference papers
Calcined clay as an alternative binder: A further step towards achieving thermally insulating structural concrete based on aerogel
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Published in
Conference papers
Optimization of energy supply system in residential Net-ZEB
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations
Fra energisluk til energiprodusent
Publication Year:
2013
Publication Year:
2013
Et ordinært kontorbygg fra 80-tallet skal skape mer energi enn det bruker.
Published in
Media contributions
Download attachments:
The process of batch combustion of logs in wood stoves – Transient modelling for generation of input to CFD modelling of stoves and thermal comfort simulations
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Co-publication with StableWood
Published in
Conference papers
Framtidens vinduer – Hvordan blir de?
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Popular Science Articles
Vi snakker om miljø og dokumentasjon av CO2 utslipp, men hvordan gjør vi det? Resultater for trebygninger ved bruk av forskjellige beregningsverktøy, ZEB og Framtre
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations
Strategier for utforming av smarte bygg i Zero Emission Buildings
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Published in
Conference presentations
Impacts of Operating Hardware on Window Thermal Performance
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Energy payback: An attributional and environmentally focused approach to energy balance in net zero energy buildings
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Net zero energy buildings (nZEBs) are understood as grid-connected buildings which do not require net inputs of non-renewable energy over a defined period of their life cycle. Energy requirements of nZEBs have until now been assessed based on the impact buildings have on the existing energy system. This paper introduces a new approach to nZEB energy balance that takes into account the actual amount of energy nZEBs require. Energy balance methods previously proposed for nZEBs are illustrated in a new way and expressed in a series of equations based on a common terminology. Taking a different standpoint on the very…
Published in
Journal papers
Robustness classification of materials, assemblies and buildings
Authors:
Publication Year:
2014
Authors:
Publication Year:
2014
Published in
Journal papers
Holder ikke med et passivhus her og et plusshus der
Publication Year:
2014
Publication Year:
2014
Published in
Media contributions