Publications
Hourly load modeling of non-residential building stock
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Publication Year:
2013
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Publication Year:
2013
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Hourly Electricity Load Modelling of non-residential Passive Buildings in a Nordic Climate
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Publication Year:
2015
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Publication Year:
2015
Abstract Detailed knowledge of electricity demand is essential for power system planning and operation. EUs 20-20-20 targets will increase the development of more energy efficient buildings as all new buildings shall be “nearly zero energy buildings” by 2020. The result from this ambition is that so-called passive buildings and nearly-net-zero-energy-buildings (nZEB), with lower energy demand, or even onsite power generation, will significantly change the way buildings are integrated in the power system. System operators must consequently prepare for changes in load profiles. However, the knowledge on the aggregated impact of nZEBs is so far limited because the actual number of such buildings is still very small. This paper contributes to this knowledge…
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Hot box investigations and theoretical assessment of miscellaneous vacuum insulation panel configuration in building envelopes
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Publication Year:
2011
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Publication Year:
2011
Vacuum insulation panels (VIPs) are regarded as one of the most promising existing high performance thermal insulation solutions on the market today as their thermal performance typically range 5–10 times better than traditional insulation materials. However, the VIPs have several disadvantages such as risk of puncturing by penetration of nails and that they cannot be cut or fitted at the construction site. Furthermore, thermal bridging due to the panel envelope and load-bearing elements may have a large effect on the overall thermal performance. Finally, degradation of thermal performance due to moisture and air diffusion through the panel envelope is also…
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Hollow Silica Nanospheres as a Superinsulating Material
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Publication Year:
2013
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Publication Year:
2013
A simple, mild, and effective template approach has been used to produce hollow silica nanospheres with controlled sizes ranging from 40 to 150 nanometers. The obtained powders showed systematic variations in measured thermal conductivity, with values down to 0.024 W/(mK) so far, with en expressed goal to reach below 0.020 W/(mK). Surface hydrophobization was successfully performed. Thus, hollow silica nanospheres are considered to be promising building blocks for new hydrophobic, superinsulating materials.
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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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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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Holder ikke med et passivhus her og et plusshus der
Publication Year:
2014
Publication Year:
2014
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Media contributions
High Performance Thermal Building Insulation: Today's State of the Art
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Publication Year:
2012
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Publication Year:
2012
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High performance building services in Zero Emission Buildings – do all the electrical gadgets really save energy?
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Publication Year:
2011
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Publication Year:
2011
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Her skal studentene bo og leve i et laboratorium med utskiftbare vegger
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2016
Publication Year:
2016
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Her skal folk bo som forsøkskaniner
Publication Year:
2014
Publication Year:
2014
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Her kommer det 800 miljøboliger
Publication Year:
2013
Publication Year:
2013
Miljøvernminister Bård Vegar solhjell ga grønt lys for miljøprosjekt på Ådland tirsdag.
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Heat pump options for low energy office buildings in cold climate
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Publication Year:
2013
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Publication Year:
2013
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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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Publication Year:
2012
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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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Grønt lys for ZEB
Publication Year:
2013
Publication Year:
2013
Forskning på nullutslippsbygg har fått gode resultater i Forskningsrådets evaluering, og ZEB får fortsette driften og forskningen i samme spor.
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Grønt lys for grønne boliger i Blomsterdalen
Publication Year:
2013
Publication Year:
2013
Miljøverndepartementet har bestemt seg etter fylkesmannens klage.
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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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Greenhouse gas analysis of insulation options in residential energy retrofitting
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Publication Year:
2013
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Publication Year:
2013
In the pursuit of stricter energy standards for buildings to reduce their share of energy use, the use of highly efficient insulation materials like aerogel and vacuum insulation has opened a path towards lighter construction in energy retrofitting, whereas commercially available materials, such as EPS and mineral wool, result in massive wall solutions. However, these new materials are notoriously energy intensive in production, resulting in high levels of embodied energy and emissions. This work describes a comprehensive greenhouse gas analysis of the use of different insulation materials applied to residential building upgrades to passive house standard. It estimates the potential…
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Green leasing in theory and practice: A study focusing on the drivers and barriers for owners and tenants of commercial offices
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Publication Year:
2016
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Publication Year:
2016
Abstract This paper investigates the drivers and barriers for green leasing associated with the relationship between building owners and tenants, whilst also considering the extent to which this should be considered during the life cycle phases of a building. The procurement of appropriate rental property and its services is an important consideration for businesses. In terms of issues associated with this, few are more topical than factoring in sustainability. Emerging from this trend is a leasing product that deals with this directly. This product is a green lease. This not only impacts on the operations associated with a tenancy, but…
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Gode skussmål til nullutslippsatsing
Publication Year:
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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Følge seg friskere i nullutslippshus
Publication Year:
2016
Publication Year:
2016
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Future buildings – a response to the climate change
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Publication Year:
2011
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Publication Year:
2011
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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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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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From Passive House to Zero Emission Buildings from an Emission-Accounting Perspective
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Publication Year:
2012
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Publication Year:
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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From Passive House to Zero Emission Building: How much electricity generation is needed?
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Publication Year:
2010
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Publication Year:
2010
This paper shows how much electricity generation would be needed for a passive house to achieve a zero emission balance over the year, hence to become a Zero Emission Building, ZEB. The case study is based on the passive house apartment blocks built in 2008 in Løvåshagen, near Bergen, Norway, and the analysis focuses on the consequences of adopting different heating systems. With the carbon emission factors assumed, it is shown that the sole PV installation on the roof is generally not sufficient to generate all the electricity needed to achieve the ZEB balance. Possible integrations are the use of…
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From Law to Turnkey: Negotiating Sustainability in Buildings
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Publication Year:
2014
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Publication Year:
2014
This PhD thesis provides an analysis of central processes related to the creation, negotiation and communication of the future sustainable building in Norway. Both researchers and practitioners have pointed at the Planning and Building Act as a central means to speed up the process and to set the frames for a sustainable development. Based on interviews with experts, I conclude that the building laws are never a direct translation of research results, EU directives and international agreements. These have to be translated, adapted and mediated, i.e. domesticated, to the Norwegian climate and cultural conditions. Particularly in Norway, building researchers consider…
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Reports
Fremtidsens bygg – veien mot nullutslippsbygg utfordrer oss til nye løsninger
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Publication Year:
2012
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Publication Year:
2012
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Fremtidige krav til utforming av bærekraftige bygninger og energiforsyning
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Publication Year:
2015
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2015
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Fremtidige krav til utforming av bærekraftige bygninger og energiforsyning
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2015
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2015
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Fremtidens miljøvennlige bygninger
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Publication Year:
2009
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Publication Year:
2009
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Fremtidens miljøvennige bygninger
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Publication Year:
2009
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Publication Year:
2009
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Fremtidens miljøkrav – byggebransjens transformasjon de neste 30 årene
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Publication Year:
2010
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Publication Year:
2010
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Fremtidens klimavennlige bygninger
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Publication Year:
2010
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Publication Year:
2010
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Fremtidens hus og boformer
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Publication Year:
2012
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Publication Year:
2012
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Fremtidens bygninger – hvordan og hvorfor?
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Publication Year:
2012
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Publication Year:
2012
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Fremtidens bygninger – et viktig svar på klimautfordringene
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Publication Year:
2010
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Publication Year:
2010
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Fremtidens bygninger – et svar på klimautfordringene?
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Publication Year:
2010
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2010
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Fremtidens bygninger – et svar på klimautfordringen?
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Publication Year:
2010
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Publication Year:
2010
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Fremtidens bygninger – et svar på klimautfordringen?
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Publication Year:
2010
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Publication Year:
2010
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Fremtidens bygninger kan være det viktigste svaret på klimautfordringene
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Publication Year:
2010
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Publication Year:
2010
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Fremtidens bygninger i et livsløpsperspektiv - materialbruk og CO2 utstlipp
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Publication Year:
2012
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Publication Year:
2012
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Fremtidens byggstatus på forskningsfronten
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Publication Year:
2013
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Publication Year:
2013
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