Publications
Energiforsyningsløsninger for lavenergi yrkesbygg i Norge
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2012
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2012
Master i energi og miljø
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Form følger miljø - Powerhouse-alliansens to første prosjekter
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2012
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2012
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Flytende tregulv – Pass på avstanden!
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2012
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2012
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Popular Science Articles
Vil bygge 800 miljøboliger, men fylkesmannen sier nei
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2012
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2012
Kjetil Helland i ByBo AS har ventet i tre år på å realisere et av Norges viktigste miljøprosjekter. Nå haster det, sier han.
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Unngå byggskader ved laboratorietesting av nye materialer og løsninger
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2012
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2012
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Retrofitting Timber Frame Walls with Vacuum Insulation Panels
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2012
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2012
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Conference papers
Fourier Transform Infrared Radiation Spectroscopy Applied for Wood Rot Decay and Mould Fungi Growth Detection
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2012
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2012
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Journal papers
Innovative High Performance Thermal Building Insulation Materials - Today's State-of-the-Art and Beyond Tomorrow
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2012
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2012
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Status fra Zero Emission Buildings på energiforsyning – Status for arbeidspakke 3. Utvikling av nye og forbdrede produkter og løsninger for energiforsyning og tekniske installasjoner
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2012
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2012
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Small studies in architectural materiality
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2012
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2012
Within the frame of this exploratory essay, small studies in materiality are introduced as artifacts of relatively simple means, designer driven, and as useful in anchoring strategies to reflexively map research methods in art and design practices. Using concepts from science and technology studies (STS), a series of projects are contextually presented and modes of working are tracked. Small studies discusses how artists and designers can better position themselves to critically assess relationships between the complex, interconnected design issues they encounter in their artistic practices, and the methods they opt to employ. The essay concludes that in fields where art…
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Form følger miljø-konseptet og løsninger for verdens nordligste energipositive næringsbygg
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2012
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2012
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Kan Powerhouse bli byggenæringens månelanding?
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2012
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2012
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Unikt laboratorium baner veien mot nullutslipphuset
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2012
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2012
Vegger og vinduer får juling av sol, regn og frost i en ny klimasimulator i Trondheim, Den skal hjelpe byggebransjen med å gjøre drømmen om bygg uten utslipp av klimagasser til en realitet
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Impacts of Operating Hardware on Window Thermal Performance
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2012
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2012
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Retrofitting Timber Frame Walls with Vacuum Insulation Panels
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2012
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2012
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Architectural integration of photovoltaic cells overview of materials and products from an architectural point of view
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2012
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2012
The building skin is often called the third skin of a human being after the body skin and clothes since it provides protection from the elements, creates privacy and provides contact between the indoor and outdoor space. Moreover, it is the most important element regarding the total energy balance of buildings. Solar energy systems, and in particular solar cells, have an important role to play in reducing energy needs of buildings. Several building surfaces are ideally suited for the use of solar panels, but high costs as well as technical and aesthetical considerations have long kept building owners and architects…
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Energy performance assessment of an advanced responsive multifunctional facade module: first results of an experimental campaign
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2012
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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…
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Marinlyst school – Comparison of simulated and measured energy use in a passive house school
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2012
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2012
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Performance evaluation of a combined solar-thermal and heat pump technology in a Net-ZEB under stochastic user-loads
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2012
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2012
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Design of a Zero Energy Office Building at Haakonsvern
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2012
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2012
An office building of about 2000 m2 heated floor area is being designed for the Norwegian Defense Estates Agency (Forsvarsbygg). The building will be located at Haakonsvern, about 15 km from the centre of Bergen, Norway. The design aims at meeting the ZEB criterion of net zero energy balance for building operation during a year. The energy for operation of the plug loads (computers, printers, etc.) is not included in the balance.
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Experimental Assessment of the Energy Performance of an Advanced Responsive Multifunctional Facade Module
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2012
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2012
Responsive Building Elements (RBEs) and energy storage within the building are considered as a crucial development towards the nearly Zero Energy/Emission Building target. The exploitation at the building scale of renewable energy sources and the opportunities offered by the environment is achieved by the ability of the RBEs to dynamically adapt to changing environmental conditions. Among these concepts, Advanced Integrated Façades (AIFs) are probably one the most promising technologies, due to the important role that the building envelope plays in controlling the energy and mass flows between the building and the outdoor environment. In the framework of a decade-long research…
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Nano insulation materials for energy efficient buildings: a case study on hallow silica naonspheres
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2012
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2012
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Nano insulation materials for energy efficient buildings: from theory to practice
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2012
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2012
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Possibilites for characterization of a pcm window system large scale measurements
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2012
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2012
The introduction of dynamic envelope components and systems can have a significant reduction effect on heating and cooling demands. In addition, it can contribute to reduce the energy demand for artificial lighting by better utilization of the daylight. One of these promising technologies is Phase Change Materials (PCM). Here, the latent heat storage potential of the transition between solid and liquid state of a material is exploited to increase the thermal mass of the component. A PCM layer incorporated in a transparent component can increase the possibilities to harvest energy from solar radiation by reducing the heating/cooling demand and still…
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Sammenligning av klimagass-utslipp med naturlig- og balansert ventilasjon
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2012
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2012
Dagens byggeforskrifter krever mye ekstra dokumentasjon om en ikke skal ha balansert ventilasjon, og dette legger i praksis sterke føringer for valg av ventilasjonsløsning. Imidlertid er klimagassutslipp med ulike ventilasjons-konsept i liten grad undersøkt.
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From Passive House to Zero Emission Buildings from an Emission-Accounting Perspective
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2012
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2012
Moving away from the annual energy budget and including the emissions of the entire building lifetime during construction, operation, and disposal is a key aspect of ZEB. This can be summarised in an emission inventory of operation and building components and services. The aim of this paper is to investigate the emission balance of both operational and the embodied energy in different highly energy efficient buildings concepts which are worth considering toward achieving Zero emission buildings. In this work four concepts for energy efficient buildings are identified which could provide stepping stones towards a definition of ZEB. These concepts were…
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A numerical model to evaluate the thermal behaviour of PCM glazing systems
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2012
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2012
The adoption of Phase Change Materials (PCMs) in building components is an up-to-date topic and a relevant number of research activities on this issue are currently on the way. A particular application of PCMs in the building envelope focuses on the integration of such a kind of material into transparent envelope components. A numerical model that describes the thermo-physical behaviour of a PCM layer in combination with other transparent materials (i.e. glass panes) has been developed to perform numerical analyses on various PCM glazing systems configurations. The paper illustrates the structure of the model, the main equations implemented and the…
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Investigation of the thermal properties and heat-storage reliability of a paraffin wax for LHTES application under direct solar radiation
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2012
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2012
In recent years, Thermal Energy Storage (TES) is becoming more and more important in different engineering applications. As far as the building sector is concerned, TES is considered a crucial feature to reach the net-Zero Energy Building (nZEB) goal. Commonly, TES in building is obtained using the sensible heat property of conventional building materials (building thermal inertia). The drawbacks of this strategy are: the low amount of thermal energy that can be stored; the overheating of the indoor environment that may occur if elevate amount of heat is collected by a conventional building material. On the contrary, the exploitation of…
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Optimal transparent percentage in façade modules for office buildings in a central Europe climate: a case study in Frankfurt
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2012
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2012
The building enclosure plays a relevant role in the management of the energy flows in buildings and in the exploitation of the solar energy at building scale. An optimized configuration of the façade can contribute to reduce the total energy demand of the building. Traditionally, the search for the optimal façade configuration is obtained by analyzing the heating demand and/or the cooling demand only, while the implication of the façade configuration on the energy demand for artificial lighting is often not considered, especially during the first stage of the design process. A global approach (i.e. including heating, cooling and artificial…
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Review of Air-to-Air Heat/Energy Exchangers for Use in NZEBs in the Nordic Countries
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2012
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2012
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Journal papers
Heat and Mass Transfer in Quasi-Counter Flow Membrane-Based Total Heat Exchanger, Membrane Study
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2012
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2012
Realisation of Net Zero Energy Buildings (NZEB) for residential use depends on, among many other things, minimizing air leakages. However, very airtight houses will have an increased risk for problems regarding indoor humidity, thermal comfort and indoor air quality. Focusing on ventilation systems becomes a requirement in this situation. For cold climates, mechanical ventilation systems are the state of the art solution and in order to achieve a further reduction in energy use, the focus must be on efficient energy recovery. This paper focuses on a quasi-counter flow membrane-based heat and moisture recovery system for cold climates such as the…
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Towards a Zero Emission Built Environment in Norway
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2012
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2012
Pilot projects of sustainable climate-adapted architecture and the national research for carbon neutral buildings
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Reports
Nanoisolert passivhus
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2012
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2012
Arild Gustavsen vil gjøre passivhusveggen tynnere ved å bruke nanoisolasjon.
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On the proper integration of wood stoves for the space-heating of passive houses
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2012
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2012
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Fremtidens bygninger i et livsløpsperspektiv - materialbruk og CO2 utstlipp
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2012
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2012
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Krav og forventninger til temperatur og luftkvalitet i fremtidens bygninger
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2012
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2012
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Effektiv energibruk og energiforsyning/lokal produksjon i fremtidens bygninger
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2012
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2012
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A numerical model to evaluate the thermal behaviour of PCM glazing system configurations
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Publication Year:
2012
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2012
The adoption of Phase Change Materials (PCMs) in building components is an up-to-date topic and a relevant number of research activities on this issue is currently on the way. A particular application of PCMs in the building envelope focuses on the integration of such a kind of material into transparent envelope components. A numerical model that describes the thermo-physical behaviour of a PCM layer in combination with other transparent materials (i.e. glass panes) is developed to perform numerical analyses on various PCM glazing systems configurations. The paper illustrates the structure of the model, the main equations implemented and the hypotheses…
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Journal papers
Nye, godt isolerte vinduer dugger mer
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2012
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2012
Men kondens på utsiden av glasset er godt tegn for strømregningen.
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Vacuum insulation panels in wood frame wall constructions with different stud profiles
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2012
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2012
In this work, the thermal performance of three different wall configurations was examined by hot box measurements and numerical simulations. Vacuum insulation panels were sandwiched between traditional insulation in walls where the load-bearing elements were standard 36-mm-thick wooden studs, I-profiled studs and U-profiled studs. The measured mean values of the thermal transmittance (U-value) were 0.09 W/m2·K with 36-mm-thick wooden studs, 0.10 W/m2·K with U-profiled studs and 0.11 W/m2·K with I-profiled studs. The comparison of the three wall structures has shown that with such low U-values, the numerical simulations are more sensitive to the accuracy of the dimensions and thermal conductivities…
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Building integrated photovoltaic products: a state-of-the-art review and future research opportunities
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2012
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2012
Building integrated photovoltaics (BIPVs) are photovoltaic (PV) modules integrated into the building envelope and hence also replacing traditional parts of the building envelope, e.g. the roofing. In this context, the BIPVs integration with the building envelope limits the costs by serving dual purposes. BIPVs have a great advantage compared to non-integrated systems because there is neither need for allocation of land nor stand-alone PV systems. This study seeks to outline various commercially available approaches to BIPVs and thus provides a state-of-the-art review. In addition, possible future research opportunities are explored. The various categories of BIPVs may be divided into photovoltaic…
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Municipal planning of sustainable neighbourhood: action research and stakeholder dialogue
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2012
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2012
How can researchers and planners best facilitate the transition to low-carbon societies? In particular, can they initiate better dialogue in order to foster stakeholder engagement in planning, building and living in low-carbon settlements? These challenges inform a municipal planning process for a new neighbourhood in Trondheim, Norway: Brøset, as well as for an interdisciplinary research project exploring the role of action research in supporting the transition to low-carbon societies. The processes are described for identifying the central actors and applying the dialogue strategies in the early planning project phase. Researchers and planners collaborated to contribute to new knowledge production and…
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Energy and buildings research: challenges from tne new production of knowledge
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2012
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2012
The current state and future challenges of energy and buildings research are explored from the perspective of the social study of science. Major trends in knowledge production are considered for practices within current energy and buildings research. New forms of knowledge production hold the potential to provide clearer strategies to overcome barriers between researchers and practitioners. These are investigated through an explorative survey of researchers based on their own accounts of energy and buildings research, their expectations of future challenges, and their perceptions of ‘good’ science. Two sets of challenges from knowledge production arise for building energy research. First, with…
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ZEB-kriterier for nullutslippsbygg – og områder
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2012
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2012
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Dette bygget lager mer energi enn det bruker
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2012
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2012
Næringsbygg blir kraftverk. Rehabiliterte bygg som prduserer energi kan dekke inn mer enn 40 prosent av verdens energiforbruk. Oppslag i Aftenposten vedrørende oppussing av kontorbygg på Kjørbo i Bærum.
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The Skarpnes resisdential development
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2012
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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…
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Powerhouse One: the first plus-energy commercial building in Norway
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2012
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2012
“Powerhouse” is an alliance that will demonstrate that it is possible to build plus-energy buildings in cold climates, such as in Norway. For the Powerhouse project in Trondheim (Brattørkaia 17a), PV panels will produce and offset the delivered energy needed during the operation and for compensating the embodied energy of the building. The building will thus export more electricity than it will use for operation. In a broader environmental perspective, an aim of this project is also to achieve the classification “Outstanding” in the BREEAM-NOR environmental certification scheme. Energy efficiency measures and materials with low embodied energy have been crucial…
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