Publications
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
Analysis of change in design procedures for heat pump systems in nZEB
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Publication Year:
2014
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Publication Year:
2014
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Passiv versus aktiv – samproduksjoner og innramminger av fremtidens bygg
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Publication Year:
2014
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Publication Year:
2014
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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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2015
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Ventilative cooling for schools and kindergartens
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Publication Year:
2014
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Publication Year:
2014
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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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2015
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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
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
CO2 emissions from Biofuels and District Heating
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2013
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Publication Year:
2013
Carbon Debt and Carbon Payback time have recently been introduced into the Norwegian debate on greenhouse gas emissions, challenging the established view that Biofuels are carbon neutral. This report demonstrates that these new concepts are primarily a reflection of how the temporal system boundaries for CO2 emissions from biofuels are viewed. In a short term perspective it is possible that CO2 emissions from biofuels may have a non-zero short term climate effect, even though biofuels will be carbon neutral on the order of a century. Two alternative, more useful new concepts for analysis of climate effects of biofuels are described…
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Gode skussmål til nullutslippsatsing
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2013
Publication Year:
2013
Zeb, forskningssenteret for nullutslippsbygg ved NTNU er sikret ny treårskontrakt med Forskningsrådet. Det er klart etter at senteret kommer svært godt ut av en fersk midtveisevaluering. Artikkelen er skrevet av Sølvi Waterloo Normannsen
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Laboratorier for morgendagens løsninger
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Publication Year:
2013
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Publication Year:
2013
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Conference presentations
Form følger miljø - Powerhouse-alliansens to første prosjekter
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Publication Year:
2012
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2012
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Passive House at the crossroads: The past and the present of a voluntary standard that managed to bridge the energy efficiency gap
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Publication Year:
2013
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Publication Year:
2013
Improving energy efficiency in dwellings is generally seen as the low-hanging fruit of climate change mitigation. In particular decreased heat loss through better insulation is suggested as one of the most cost-effective means to achieve the ambitious national and international goals of climate gas reduction. However, the literature shows that a profitable technological solution is not sufficient to reach the energy goals. Aspects such as a lack of information, unobserved costs, and heterogeneity among users can compromise the success of technical innovation. Still, there are successful concepts that drive the technological development in the construction sector. The Passive House is…
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Journal papers
Zero energy renovation of single family houses
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Publication Year:
2013
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Publication Year:
2013
Thesis for the degree of Philosophiae Doctor
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Sustainable refurbishment of Ellebo Housing Estate
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Publication Year:
2013
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Publication Year:
2013
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Evaluering av energibruk i passivhus studentboliger
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Publication Year:
2013
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Publication Year:
2013
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Energiforsyningsløsninger for lavenergi yrkesbygg i Norge
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Publication Year:
2012
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Publication Year:
2012
Master i energi og miljø
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Hollow Silica Nanospheres as a Super-Insulating Material
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Publication Year:
2013
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Publication Year:
2013
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Conference presentations
I superisolerte boliger er det spesielt ett rom som skaper problemer
Publication Year:
2016
Publication Year:
2016
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Media contributions
Success for energy efficient renovation of dwelling - Learing from private homeowners
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Publication Year:
2013
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Publication Year:
2013
Large scale energy efficient renovation of buildings is one of the most important tools to realize the society's need of a more sustainable building stock. Most Norwegians own their own homes. Therefore private homeowners are a focus group for the government urging to accelerate the dwelling energy efficiency rates. Success factors were identified in the in-depth study of the decision process of eleven homeowners. Large differences in energy use due to the building's condition and the occupants' behavior was encountered in the sample. Only homeowners who were conscious consumers and did not trust expert advice or that had special knowledge…
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Journal papers
Visible-Light Driven Photochromism of Hexagonal Sodium Tungsten Bronze Nanorods
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Publication Year:
2013
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Publication Year:
2013
Single-crystalline sodium tungsten bronze (Na-WO3) nanorods with typical diameters of 10−200 nm and lengths of several micrometers were prepared via hydrothermal synthesis. The as-prepared Na-WO3 nanorods crystallized in a hexagonal structure (space group P6/mmm) with unit cell parameters a=7.3166(8) Å and c= 3.8990(8) Å and elongated along the ⟨001⟩direction. Chemical analyses indicated a stoichiometry of Na0.18WO3.09·0.5H2O, revealing the existence of tunnel Na+ ions and water molecules in the structure, as confirmed also by the vibrational spectroscopic study. The as-prepared Na-WO3 nanorods exhibited a direct-allowed electronic transition with band-gap energy of about 2.5 eV, which allows a visible-light-driven photochromism related to…
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Journal papers
Rehabmarkedet er enormt - og uutnyttet
Publication Year:
2013
Publication Year:
2013
Alt som skal til for å rehabilitere eldre eneboliger til moderne energistandarder er tilgjengelig. Men kundene skygger unna. Artikkel skrevet av Joachim Seehusen
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Kan Powerhouse bli byggenæringens månelanding?
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Publication Year:
2012
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Publication Year:
2012
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Sustainable Facade Renovation. Using Dynamic Performance Simulations
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Publication Year:
2013
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Publication Year:
2013
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Reports
Impact on architectural quality, daylighting and thermal performance of different atria in renovation project
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Publication Year:
2013
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Publication Year:
2013
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A New Nano Insulation Material for Applications in Zero Emission Buildings
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Publication Year:
2013
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Publication Year:
2013
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A Design of Sustainable Energy Supply System of Shoebox Residential Building
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Publication Year:
2013
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Publication Year:
2013
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Emission Accounting of a Wooden Passive House from Life Cycle Perspective
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Publication Year:
2013
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Publication Year:
2013
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Between Research and Practice: Experts on Implementing Sustainable Construction
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Publication Year:
2013
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Publication Year:
2013
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Journal papers
Paraotwayite-Type α-Ni(OH)2 Nanowires: Structural, Optical and Electrochemical Properties
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Publication Year:
2013
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Publication Year:
2013
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Journal papers
Robustness classification of materials, assemblies and buildings
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Publication Year:
2013
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Publication Year:
2013
Reliable methods are needed for classifying the robustness of buildings and building materials for many reasons, including ensuring that constructions can withstand the climate conditions resulting from global warming, which might be more severe than was assumed in an existing building’s design. Evaluating the robustness of buildings is also important for reducing process-induced building defects. We describe and demonstrate a flexible framework for classifying the robustness of building materials, building assemblies, and whole buildings that incorporates climate and service life considerations.
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User evaluation of vacuum insulation in clay blocks
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Publication Year:
2013
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Publication Year:
2013
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Grønne vinduer
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Publication Year:
2014
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Publication Year:
2014
Vinduer ble lenge betraktet som energisluk i vinter-Norge. Men utstyrt med siste nytt fra forskningsfronten på feltet, kan kontorbygg forbruke mindre energi enn bygninger helt uten vinduer.
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Powerhouse One - erfaringer med å utarbeide konseptet for et nullenergi-bygg
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Publication Year:
2013
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Publication Year:
2013
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Solar Radiation Glazing Factors for Windows Panes, Glass structures and Electrochromic Windows in Buildings - Measurement and Calculation
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Publication Year:
2013
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Publication Year:
2013
Window panes, glass structures and electrochromic windows in buildings may be characterized by a number of solar radiation glazing factors, i.e. ultraviolet solar transmittance, visible solar transmittance, solar transmittance, solar material protection factor, solar skin protection factor, external visible solar reflectance, internal visible solar reflectance, solar reflectance, solar absorbance, emissivity, solar factor and colour rendering factor. Comparison of these solar quantities for different glass fabrications enables one to evaluate and thus select the most appropriate glass material or system for the specific buildings and applications. Measurements and calculations were carried out on various glass materials, including three electrochromic window devices,…
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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
Renovation of an office buildings in Bergen: architectural and daylighting design as a tool for energy efficiency
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Publication Year:
2013
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Publication Year:
2013
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Bygger Norges første plusshuss
Publication Year:
2013
Publication Year:
2013
Hele 1556 kvadratmeter med solceller gjør at Norge får sitt første plusshus i Bærum. Artikkelen skrevet av Caroline Drefvelin.
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Investigation of prototype membrane based energy exchanger
Publication Year:
2012
Publication Year:
2012
In order to minimize the energy use for heating, passive houses for residential use are constructed using heavy insulation. In addition, they have minimal air leakages and no vents in exterior walls for direct supply of fresh air, and thus, mechanical ventilation systems are a mandatory requirement in such buildings. With the aim of reducing energy use, efficient energy recovery from used air will be of high importance. In residential buildings with several living units, centralized air handling units are regarded as the most energy efficient system. However, to prevent odours to transfer between apartments it is important to avoid…
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