Publications
Fremtidens miljøvennlige bygninger
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Publication Year:
2009
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Publication Year:
2009
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Aerogel vs. argon insulation in windows: A greenhouse gas emissions analysis
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Publication Year:
2016
Authors:
Publication Year:
2016
Abstract The scope of this study is a comprehensive analysis of the greenhouse gas emissions from the partial substitution of triple-glazing units with argon gas (U-value of 0.79 W/m2 K) with double-glazing units with either monolithic aerogel (U-value of 0.65 W/m2 K) or granular aerogel (U-value of 0.31 W/m2d K). A residential building located near Oslo and fully upgraded with passive house solutions is used as a case study for this analysis. A cradle-to-site analysis is performed on the facade components. Two replacement schedules and three window-to-wall ratios are used to evaluate the differences in total emissions. Sensitivity analyses based on increasing the fraction of the…
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Journal papers
The legal dwelling: how Norwegian research engineers domesticate construction law. Engineering Studies
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Publication Year:
2015
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Publication Year:
2015
Abstract The considerable amount of energy spent on the construction, maintenance, and demolition of buildings draws attention to sustainable development in the construction sector. Regarded as both tools and frameworks, laws are expected to sustain and speed technological innovation. With the STS (Science and Technology Studies) theory of domestication and in-depth interviews with building researchers studying zero emission buildings in Norway, I discuss the role of research engineers in the domestication of law, that is, the translation of European Directives for building codes and technical requirements, and the mediation of these legal frameworks for industry and practitioners. I classify two…
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Journal papers
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
Grønt lys for grønne boliger i Blomsterdalen
Publication Year:
2013
Publication Year:
2013
Miljøverndepartementet har bestemt seg etter fylkesmannens klage.
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Media contributions
Experimental Assessment of the Energy Performance of an Advanced Responsive Multifunctional Facade Module
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Publication Year:
2012
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Publication Year:
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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Conference papers
Fenestration solutions for zero emission renovation of dwellings
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Publication Year:
2011
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Publication Year:
2011
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Conference papers
Core-shell typed Ag@SiO2 nanoparticles as solar selective coating materials
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Publication Year:
2013
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Publication Year:
2013
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Journal papers
Thermo-physical behaviour and energy performance assessment of PCM glazing system configurations: A numerical analysis
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Publication Year:
2012
Authors:
Publication Year:
2012
The adoption of Phase Change Materials (PCMs) in glazing systems was proposed to increase the heat capacity of the fenestration, being some PCMs partially transparent to visible radiation. The aim of the PCM glazing concept was to let (part) of the visible spectrum of the solar radiation enter the indoor environment, providing daylighting, while absorbing (the largest part of) the infrared radiation. In this paper, the influence of the PCM glazing configuration is investigated by means of numerical simulations carried out with a validated numerical model. Various triple glazing configurations, where one of the two cavities is filled with a…
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Journal papers
Solutions and technologies for wood stoves in future's energy efficient residential buildings
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Publication Year:
2015
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Publication Year:
2015
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Books
Ventilative cooling for schools and kindergartens
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Publication Year:
2014
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Publication Year:
2014
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Reports
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
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Publication Year:
2015
Authors:
Publication Year:
2015
Co-publication with StableWood
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Conference papers
Vakuumisolasjonspanel og utviklingen videre – Teknologi for tynnere vegger
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Publication Year:
2011
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Publication Year:
2011
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Popular Science Articles
Oppgradering av 80-tallshus til passivhusnivå, -Hvilke tiltak er mest effektive?– Hva er økonomisk gunstig?
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Publication Year:
2011
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Publication Year:
2011
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Conference presentations
Det råeste plusshuset finner du i Larvik
Publication Year:
2014
Publication Year:
2014
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Media contributions
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ZE+hytte - A net zero energy building concept
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Publication Year:
2011
Authors:
Publication Year:
2011
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Conference presentations
Metode for bærekraftig optimalisering av ventilasjonssystemer: PhD-kandidater ble tildelt best paper award
Publication Year:
2016
Publication Year:
2016
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Media contributions
Accelerated ageing and durability of double-glazed sealed insulating windows panes and impact on heating demand in buildings
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Publication Year:
2016
Authors:
Publication Year:
2016
Abstract A crucial property for double-glazed sealed insulating window panes is to maintain their thermal insulating properties and thus low U-values. However, degradation and thus subsequent reduction or loss of low-conductance gas concentration may occur in the sealed glazing units by their exposure to outdoor climate. The choice of spacers is important to keep as low thermal transport through the window panes as possible, i.e. low U-value. In addition, the type of spacers may also influence their durability and resistance towards ageing, which hence may be characterized by the low-conductance noble gas concentration, e.g. argon, krypton or xenon. Ageing and…
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Journal papers
Zero Emission Buildings in Norway – Research centre and pilot buildings
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Publication Year:
2014
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Publication Year:
2014
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Conference presentations
The suitability of air-heating in residential passive house buildings from the occupant’s point of view
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Publication Year:
2015
Authors:
Publication Year:
2015
Abstract The substantial reduction of required heating load in passive house buildings has led to an integration of heating in the ventilation system by post-heating the supply-air, called air-heating. The incorporation of heating in the ventilation system constitutes a departure from a well-established customary practice of strictly separating heating and ventilation in the indoor climate design. It is therefore imperative to thoroughly investigate and evaluate air-heating with regard to effects on the indoor air quality (IAQ) and thermal comfort. Simulations and laboratory measurements suggest that air-heating has no adverse effects on IAQ and thermal comfort. The purpose of this paper…
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Journal papers
Simple modelling procedure for the indoor thermal environment of highly-insulated buildings heated by wood stoves
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Publication Year:
2016
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Publication Year:
2016
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Journal papers
Artium Design in Office Buildings. An evaluation of how artium design influences the daylight availability
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Publication Year:
2013
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Publication Year:
2013
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Reports
Building integration of aerogel glazings
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Publication Year:
2016
Authors:
Publication Year:
2016
Abstract The recent building practices have shown that aerogel glazings can be used as a multifunctional building envelope component for different purposes. Nevertheless, the distinctive physical properties and energy performance of aerogel glazings suggest that building integration of aerogel glazings may create architectural challenges, aesthetic problems, as well as concerns on their durability and environmental impact, thus highlighting the importance of developing guidelines to regulate the use of aerogel glazings in the building sector. This study discusses various approaches for the building integration of aerogel glazings by presenting a number of successful examples; the advantages of integration are quantified and…
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Journal papers
Transparent facades in low energy office buildings Numerical simulations and experimental studies
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Publication Year:
2015
Authors:
Publication Year:
2015
Windows are a key component in the building envelope. They are often, thought of as energy drains and something associated with excessive energy demands in a building. However, in order to assess the energy performance of a window, several factors must be addressed. The most important issues to consider are energy losses due to heat transmission through windows, energy gains from solar radiation as well as transmitted visible light and the influence on artificial lighting demands. Factors like thermal and visual comfort in buildings are additional factors that need to be assessed and addressed. Existing work that has been carried…
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Reports
Heat and Mass Transfer in Quasi-Counter Flow Membrane-Based Total Heat Exchanger, Membrane Study
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Publication Year:
2012
Authors:
Publication Year:
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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Conference papers
Freeze protection method in ventilation system using two hydronic circuits
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Publication Year:
2011
Authors:
Publication Year:
2011
Freeze protection in ventilation systems is important to avoid freeze damages and increase in maintenance costs. Freezing in a ventilation system can appear in construction and operation phase. The aim of this study was to test a new method for freeze protection in ventilation system. This method implies use of an additional heat exchanger. The method used two hydronic circuits: the first one with water on energy supply side, and second one with mixture of glycol and water at the secondary side. The mixture transfers heat from the energy source via an additional heat exchanger to the coil in the…
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Conference presentations
Small studies in architectural materiality
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Publication Year:
2012
Authors:
Publication Year:
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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Large scale measurements and calculations of wall elements with vacuum insulation panels (VIPs)
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Publication Year:
2014
Authors:
Publication Year:
2014
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Conference papers
Retrofitting with VIPsCase study: house from the 1930’s
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Publication Year:
2010
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Publication Year:
2010
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Conference presentations
Erfaringer med markedsutvikling for høye energiambisjoner
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Publication Year:
2012
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Publication Year:
2012
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Aerogel-Incorporated Concrete: An Experimental Study
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Publication Year:
2014
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Publication Year:
2014
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Journal papers
Materials for Zero Emission Buildings - Properties, Requirements and Possibilities
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Publication Year:
2011
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Publication Year:
2011
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Conference presentations
Nye, godt isolerte vinduer dugger mer
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Publication Year:
2012
Authors:
Publication Year:
2012
Men kondens på utsiden av glasset er godt tegn for strømregningen.
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Media contributions
Proposal for CO2-factor for electricity and outline of a full ZEB-definition
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Publication Year:
2011
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Publication Year:
2011
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Reports
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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…
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Conference papers
Integrated Energy Design for Zero Emission Buildings
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Publication Year:
2010
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Publication Year:
2010
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Norwegian National Centre for Environmentfriendly Energy Research: Zero Emission Buildings (ZEB)
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Publication Year:
2011
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Publication Year:
2011
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Conference presentations
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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From Space Habitats to Zero Emission Buildings (ZEBs) - Space Borne ZEB Enabling Technologies
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Publication Year:
2010
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Publication Year:
2010
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Conference papers
Status fra Zero Emission Buildings på energiforsyning – Status for arbeidspakke 3. Utvikling av nye og forbdrede produkter og løsninger for energiforsyning og tekniske installasjoner
Publication Year:
2012
Publication Year:
2012
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The high performance thermal building insulation materials of beyond tomorrow – from consept to experimental investigations
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Publication Year:
2014
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Publication Year:
2014
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Façade Integration Typologies of Photovoltaics. Architecture and sustainable development.
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Publication Year:
2011
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Publication Year:
2011
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Conference papers
Encapsulated Vacuum Insulation Panels for Building Applications -Experimental Durability Investigations and Retrofitting Strategies
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Publication Year:
2013
Authors:
Publication Year:
2013
Vacuum insulation panels (VIPs) are a high-performance thermal insulation solution, which offer a much higher heat resistance than traditional insulation materials. Thus, is enabling a reduction in thickness of the building envelope, thereby solving one of the major challenges in today's requirements of energy-efficient buildings. Hence, the area efficiency in buildings will increase, and the slimmer walls may lead to increased daylight admission through the window partitions. Furthermore, it gives the possibility of retrofitting existing buildings towards today's standards within acceptable economical and practical measures. Reduction of thermal heat resistance is one of the major challenges when using VIP, thus…
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