Publications
Miljøvennlig varmeforsyning til lavenergi- og passivhus. En casestudie.
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Publication Year:
2010
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2010
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Kraftfullt miljøsatsing - Hvordan vi har jobbet for å få fram nye løsninger i Powerhouse?
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Publication Year:
2013
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2013
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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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User evaluations of passive houses and low energy buildings – Literature Review and Further Research
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Publication Year:
2010
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Publication Year:
2010
This paper is based on a review of research that describes user experiences with different types of energy efficient buildings, focusing on indoor climate, technical operation, user attitudes, and general satisfaction. Energy efficient buildings are often rated better than conventional buildings on indoor climate, but when investigating more thoroughly, the users have different concerns. The varying results from the user evaluations reflect that the quality of the buildings differs. However, user concerns may also be a result of inappropriate use. Perceived personal control and sufficient information on operation and use is crucial for an overall positive experience of the building.…
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The Thermal Performance of Wall-Integrated Phase Change Material Panels – Hot Box Experiments
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Publication Year:
2010
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Publication Year:
2010
Phase change materials (PCMs) have opened a new door towards the renewable energy future due to their effective thermal energy storage capabilities. Several products have recently found their way to the market, using various types of PCMs. This paper focuses on one particular wall-board product, integrated in a well-insulated wall constructed of an interior gypsum board, PCM layer, vapor barrier, mineral wool, and a wind barrier. The wall is tested with and without the PCM layer in order to get comparative results. Experiments are conducted in a traditional guarded hot box. The hot box is composed of two full-scale test…
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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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Qualitative user evaluation of energy efficient buildings – Case studies of six passive houses and zero-energy buildings
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Publication Year:
2011
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Publication Year:
2011
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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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Publication Year:
2012
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Publication Year:
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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Thermal superinsulation for building applications – From concepts to experimental investigations
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Publication Year:
2014
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Publication Year:
2014
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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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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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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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Towards LCA of building automation and control system in zero emission buildings – measurements of auxiliary energy to operate a KNX BUS-system
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Publication Year:
2013
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Publication Year:
2013
The demands for both thermal comfort and reduced energy consumption in buildings have become a major driving force for the increased use of advanced building automation and control systems (BACS). In the on-going development of Zero Emission Buildings (ZEBs), it seems to be a common understanding that such systems are needed in order to save energy and reach the zero emission goals, and that energy consumption for their operation is negligible compared to the building needs and the energy saving potential BACS causes. However, sensors and actuators in automation and control systems require electricity to operate, and both the environmental…
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Impact on thermal comfort of conventional and advanced glazed façades in office buildings
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Publication Year:
2012
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Publication Year:
2012
Transparent façades are often used to increase the aesthetic value of the building and to provide visual contact with the outdoor. However, together with several positive features, it should be mentioned that glass façades may reduce the quality of the indoor thermal environment, causing thermal discomfort especially due to overheating in the summer season. The aim of this paper is to compare the implications on thermal comfort of different glazed façades, whose surface temperatures have been monitored during several experimental campaigns. The analyzed glazing systems were double skin façades and non conventional single skin façades integrating different materials (i.e. phase…
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Hvor kan det spares, og hvordan går vi frem
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Publication Year:
2010
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2010
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The Effect of Wall-Integrated Phase Change Material Panels on the Indoor Air and Wall Temperature –Hot-box Experiments
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Publication Year:
2010
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Publication Year:
2010
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Hva er forskjellen på passivhus, nesten nullenergi, nullenergi og plussenergi/energipositivt?
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Publication Year:
2013
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Publication Year:
2013
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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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Vi snakker om miljø og dokumentasjon av CO2 utslipp, men hvordan gjør vi det? Resultater for trebygninger ved bruk av forskjellige beregningsverktøy, ZEB og Framtre
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Publication Year:
2011
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Publication Year:
2011
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Towards new configurations of work, life and energy? The role of the longue durée
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Publication Year:
2011
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Publication Year:
2011
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A net zero emission concept analysis of a Norwegian single family house – A CO2 accounting method
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Publication Year:
2013
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Publication Year:
2013
In order to reach the goal of a zero emission building (ZEB), CO2 emission data has to be made available and verified for traditional building materials, new ‘state-of-the-art’ building materials and the active elements used to produce renewable energy. However, an initial literature review found that although there are databases of embodied carbon values for most building materials, the range in results for some materials are varied and inconsistent. This paper follows on from previous work on the development of a transparent and robust method to calculate CO2eq emissions of the materials used in the concept analysis of the ZEB…
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Energikonsepter for Ådland boligområde
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Publication Year:
2014
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Publication Year:
2014
I ZEB, og som en del av arbeidspakke 5 "Konsepter og strategier for nullutslippsbygg", er det gjennomført en studie av to energikonsepter for boligområdet Ådland i Bergen. Ådland ligger ved Flesland rett sør for Bergen sentrum. ByBo AS ønsker å bygge ut fra 500 – 800 boliger på området hvor både de enkelte boligene og området som helhet skal oppfylle kriterier for nullutslippsbygg. I ZEB er det definert ulike ambisjonsnivå for nullutslippsbygg. Den gjennomførte studien anbefaler et ambisjonsnivå ZEB-O som et gjennomsnitt for Ådland området. ZEB-O betyr at området skal være selvforsynt med energi, inklusive elektrisitet og varme, over et…
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Europe’s buildings under the microscope - A country-by-country review of the energy performance of buildings
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Publication Year:
2011
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Publication Year:
2011
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Zero Energy Building – A Review of definitions and calculation methodologies
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Publication Year:
2011
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Publication Year:
2011
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Journal papers
Hvordan legger myndighetene til rette for en innovativ og bærekraftig arkitektur? Erfaringer fra arbeidet med Powerhouse-prosjektene
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Publication Year:
2013
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Publication Year:
2013
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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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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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Hvordan legger myndighetene til rette for en innovativ og bærekraftig arkitektur? Erfaringer fra arbeidet med Powerhouse-prosjektene
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Publication Year:
2013
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Publication Year:
2013
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How is wood a part of the solution
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Publication Year:
2014
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Publication Year:
2014
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Effektiv energibruk og energiforsyning/lokal produksjon i fremtidens bygninger
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Publication Year:
2012
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Publication Year:
2012
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