Publications
Presentasjon av Forskningssenteret ZEB
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Publication Year:
2009
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Publication Year:
2009
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Predicting the airtightness of wood-frame houses
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Publication Year:
2010
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Publication Year:
2010
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Powerhouse. Kraftbygg skal sette verdensrekord
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2012
Publication Year:
2012
Et nytt kontorbygg på Brattørkaia i Trondheim vil produsere 49 kWh/m2/år. Artikkel i Teknisk Ukeblad, skrevet av Joachim seehusen, publisert 16. mars 2012.
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Powerhouse på Brattøra og andre miljøprosjektet
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Publication Year:
2011
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Publication Year:
2011
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Conference presentations
Powerhouse One: the first plus-energy commercial building in Norway
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Publication Year:
2012
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Publication Year:
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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Powerhouse One, en status for Norges første plusshus
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Publication Year:
2011
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Publication Year:
2011
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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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Reports
Powerhouse Kjørboe - rehabilitering av kontorbygg til plussenergibygg
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Publication Year:
2013
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Publication Year:
2013
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Powerhouse Kjørbo: a plus-energy renovation office building project in Norway
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Publication Year:
2013
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Publication Year:
2013
The main definition of a Powerhouse is a building that shall produce at least the same amount of energy from on-site renewables as the energy used during construction, manufacturering of materials, renovation, demolition and operation exclusive energy used during manufacturering of equipment such as PCs, coffee machines etc. In addition the exported energy shall in average not have less quality than the imported energy. This implies that produced and exported electricity can offset corresponding amount of imported energy for both electricity and thermal purposes, while produced and exported thermal energy cannot offset imported electricity. The building shall also as a…
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Powerhouse Kjørbo. Evaluation of construction process and early use phase
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Publication Year:
2016
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Publication Year:
2016
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Powerhouse #1 på Brattørkaia i Trondheim
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Publication Year:
2012
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Publication Year:
2012
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Post-Occupancy Evaluation of Low-Energy and Passive House Apartments in the Løvåshagen Cooperative - Occupant Behavior and Satisfaction
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Publication Year:
2013
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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…
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Possibilites for characterization of a pcm window system large scale measurements
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Publication Year:
2012
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Publication Year:
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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Politiske mål og ambisjoner - en utfordring til byggenæringen
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Publication Year:
2012
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Publication Year:
2012
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Pilot eposide: Is Snøhetta’s energy-positive house the answer to our sustainable prayers?
Publication Year:
2014
Publication Year:
2014
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Media contributions
Phase Change Materials for Building Applications: A State-of-the-Art review and Future Research Opportunities
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Publication Year:
2015
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Publication Year:
2015
Abstract Phase change materials (PCM) have received considerable attention over the last decade for use in latent heat thermal storage (LHTS) systems. PCMs give the ability to store passive solar and other heat gains as latent heat within a specific temperature range, leading to a reduction of energy usage, an increase in thermal comfort by smoothing out temperature fluctuations throughout the day and a reduction and/or shift in peak loads. The interest around PCMs has been growing significantly over the last decade. Hence, several commercial products have arrived on the market with various areas of use in building applications. This…
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Perspective of aerogel glazings in energy efficient buildings
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Publication Year:
2015
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Publication Year:
2015
Abstract The application perspective of aerogel glazings in energy efficient buildings has been discussed by evaluating their energy efficiency, process economics, and environmental impact. For such a purpose, prototype aerogel glazing units have been assembled by incorporating aerogel granules into the air cavity of corresponding double glazing units, which enables an experimental investigation on their physical properties and a subsequent numerical simulation on their energy performance. The results show that, compared to the double glazing counterparts, aerogel glazings can contribute to about 21% reduction in energy consumptions related to heating, cooling, and lighting; payback time calculations indicate that the return…
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Performance of a lab-scale membrane-based energy exchanger
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Publication Year:
2015
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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…
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Performance of a lab-scale membrane-based energy exchanger
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Publication Year:
2015
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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…
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Journal papers
Performance of 8 Cold-Climate Envelopes for Passive Houses
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Publication Year:
2012
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Publication Year:
2012
While the design and construction of envelopes for Passive House certified homes in central European climates is well developed and has achieved widespread acceptance and reliability, the same cannot be said in colder climate regions such as the United States’ upper Midwest (DOE climate zones 6 and 7) and Scandinavia. The objective of this research was to study some of the typical building performance issues relating to Passive House envelope construction for single family homes in cold climates by testing and developing a group of 8 envelope options. Typical issues include unfamiliarity with performance of thermal bridge details, added embodied…
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Performance Evaluation of Combined Heat and Power (CHP) Applications in Low-Energy Houses
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Publication Year:
2013
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Publication Year:
2013
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Reports
Performance evaluation of a combined solar-thermal and heat pump technology in a Net-ZEB under stochastic user-loads
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Publication Year:
2012
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Publication Year:
2012
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Performance estimation and documentation of an integrated energy supply solution
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Publication Year:
2012
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Publication Year:
2012
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PCM Application - Effect on energy use and Indoor temperature
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Publication Year:
2012
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Publication Year:
2012
Thermal comfort is one of the most important factors for the success of design. Many investigations have been made since people realized the importance of energy conservation in a building. PCM is an example of such innovation in building material that helps to maintain the thermal comfort in building and also lessen the energy demand. PCM works on a principle of latent heat storage in which the material is capable of storing the heat while it reaches melting and later releases this heat in useful form. This thesis looks into the behavior of PCM when applied on different building component…
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Påvirker miljø- og klimasituasjonen i verden våre valg for hus og hjem?
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Publication Year:
2011
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Publication Year:
2011
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Passivhusstandard for nybygg fra 2020?
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Publication Year:
2010
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Publication Year:
2010
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Passivhusekspert Tor Helge Dokka spår fjernvarmens død
Publication Year:
2012
Publication Year:
2012
Passivhusekspert Tor Helge Dokka har mange tanker om fremtidens bygg. Han spår fjernvarmens død, men tror fortsatt på varmepumpen. Intervju med Tor Helge Dokka i Teknisk Ukeblad. Artikkel skrevet av Fredrik Drevon.
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Passivhus- og nullenergibygg – Hvordan skal trevarefabrikkene bidra?
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Publication Year:
2010
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Publication Year:
2010
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Passivhus – Utfordringer for byggebransjen
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Publication Year:
2010
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Publication Year:
2010
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Passivhus – Nullhus – Plusshus. Nullhus skal danke ut passivhus
Publication Year:
2012
Publication Year:
2012
Passivhus er gammelt nytt. Nå er det null energibruk som gjelder. Artikkel skrevet av Joachim Seehusen.
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Passivhus – et robust, komfortabelt og økonomisk skritt mot lavutslippssamfunnet
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Publication Year:
2010
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Publication Year:
2010
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Popular Science Articles
Passivhus som forskriftskrav i 2013
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Publication Year:
2010
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Publication Year:
2010
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Popular Science Articles
Passivhus og Zero Emission Buildings
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Publication Year:
2010
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Publication Year:
2010
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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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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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