Publications
Zero Emission Buildings – et nytt forskningssenter for miljøvennlig energy
Authors:
Publication Year:
2009
Authors:
Publication Year:
2009
Published in
Conference presentations
Powerhouse på Brattøra og andre miljøprosjektet
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations
Zero Emission Buildings
Authors:
Publication Year:
2009
Authors:
Publication Year:
2009
Published in
Conference presentations
Download attachments:
The Research Centre on Zero Emission Buildings
Authors:
Publication Year:
2009
Authors:
Publication Year:
2009
Published in
Conference presentations
Download attachments:
Moisture Robustness During Retrofitting of Timber Frame Walls with Vacuum Insulation Panels: Experimental and Theoretical Studies
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
The main purpose of this book, Hygrothermal, Building Pathology and Durability, is to provide a collection of recent research works to contribute to the systematization and dissemination of knowledge related to construction pathology, hygrothermal behaviour of buildings, durability and diagnostic techniques and, simultaneously, to show the most recent advances in this domain. It includes a set of new developments in the field of building physics and hygrothermal behaviour, durability approach for historical and old buildings and building pathology vs. durability. The book is divided in several chapters that are a resume of the current state of knowledge for benefit of…
Published in
Books
Sustainability assessment of nearly zero energy renovation of dwellings based on energy, economy and home quality indicators
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
A case study of a Norwegian detached house is used to evaluate the sustainability of two nearly zero energy renovation strategies. Energy demand, life cycle cost and home qualities are assessed as sustainability indicators. The Façade renovation strategy is an energy upgrade of the façade supplemented with high renewable energy production on site. The Ambitious renovation strategy is a total building envelope upgrade using passive house components and a lower on site renewable energy production. Both renovation strategies result in a 50–85% reduction of the heating requirement depending on the renewable energy production. The sustainability assessment was done as an…
Published in
Journal papers
Nye standarder for passivhus – NS 3700 og NS 3701/Prosjektrapport 42
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Life-cycle assessment of a multi-family residence built to passive house standard
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Reports
Cooling of PV panels by natural convection
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Building Integrated Photovoltaic (BIPV) is an important source of renewable energy production for Zero Emission Buildings, even in Norwegian climate. In the planned Powerhouse 1 building at Brattøra in Trondheim the idea to reach a zero emission building level is to use PVs as a roofing material covering the entire roof. Challenges and questions raised in the design process of this building have motivated the work reported here.
Published in
Reports
“In the morning I just need a long, hot shower”. A sociological exploration of energy sensibilities in Norwegian bathrooms
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
This article proposes a new area of research centered on the study of how energy sensibilities—in terms of esthesia which is understood as responsiveness and awareness—are distributed and redistributed. Energy is approached as a polyphonic concept with many meanings, of which none enjoys privileged status. Given this polyphony, the common observation that end-users have no idea (or wrong ideas) about their energy consumption loses importance. Instead, unevenly distributed ways of sensing and making sense of energy become the object of study. Drawing on the work of French philosopher Jacques Rancière, the article discusses contemporary distributions of energy sensibilities in domestic…
Published in
Journal papers
Zero Emission Buildings vs Zero Energy Buildings
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Energibruk nær null
Publication Year:
2012
Publication Year:
2012
20 leiligheter og 20 eneboliger skal få energibruk nær null. Artikkel i Teknisk Ukeblad, srekvet av Joachim Seehusen, publisert 3. januar 2012.
Published in
Media contributions
Arkitektstudenter og plusshus. Nå lærer arkitektstudentene om plusshus
Publication Year:
2013
Publication Year:
2013
For første gang lærer arkitektstudenter å tegne hus som produserer energi. Artikkel i Teknisk Ukeblad, skrevet av Joachim Seehusen.
Published in
Media contributions
Moderne hus tar livet av vedovnene
Publication Year:
2012
Publication Year:
2012
Artikkel i Teknisk Ukeblad om vedovner i passivhus. Artikkelen er skrevet av Mona Sprenger
Published in
Media contributions
Beregning av kuldebroverider for golv på grunn
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Denne rapporten begrenser seg til å presentere en metode for beregning av kuldebroverdier for tilslutningen mellom yttervegg og golv på grunn (ringmursløsninger). I både NS 3031 og NS‐EN ISO 10211 åpnes det for en forenklet beregning av kuldebroverdien etter en annen internasjonal standard; NS‐EN ISO 13370. Denne beskriver en forenklet prosedyre for beregning av U‐verdien til golv mot grunn basert på en korreksjon til U‐verdier beregnet etter NS‐EN ISO 6946.
Published in
Reports
Comparative Analysis of PV Shading Devices for Energy Performance and Daylight
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
The comfort and energy demand of a building are influenced significantly by glazed area of the facade. The glazed areas in the building are always challenging. Large glazing allows more daylight to get into the room but at the same time cause more heat gain and heat loss through the building envelop. Shading devices are very suitable elements for installing PV panels. The aim of this study is to evaluate the potential impact of different PV shading devices on energy performance and daylight of office buildings in Nordic climate. This dissertation is based on literature studies of relevant books and…
Published in
Reports
Characterization of the optical properties of a PCM glazing system
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
The optical characteristics of an advanced glazing system are presented in this paper. The investigated glazing system is based on the incorporation of a paraffin-based Phase Change Material (PCM) into a transparent component, made of two extra-clear glass panes and a cavity where the PCM layer is placed. Due to the highly scattering property of the system (when the PCM is in solid state), the use of a large integrating sphere equipment (75 cm diameter) is necessary to obtain reliable results. The spectral transmission, reflection and absorption coefficients of the PCM glazing system are measured between 400 and 2000 nanometers,…
Published in
Journal papers
Thermo-physical behaviour and energy performance assessment of PCM glazing system configurations: A numerical analysis
Authors:
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…
Published in
Journal papers
Core-shell typed Ag@SiO2 nanoparticles as solar selective coating materials
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Journal papers
Effekt- og energisimuleringer
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Hvilke programmer fins - brukbarhet og brukerterskel
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Durability of Vacuum Insulation Panels in Alkaline Environment
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Reports
Nullenergibygg er mulig! Hvordan kan og bør de være?
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Behov for beregning, modellering og simulering; Historisk utvikling
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Sustainable Energy Supply for Low Energy and Passive House Developments. 5 Norwegian Case Studies
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Passiv - Lavenergi - Nesten null - Plusshus. Begreper, definisjoner og prinsipper
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Norsk byggebransje deltar nesten ikke i EUs forskning
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Artikkel skrevet av Øyvind Aschehoug, prof.em. ved NTNU i Byggeindustrien
Published in
Popular Science Articles
Download attachments:
Vindusløsninger ved energieffektivisering av eneboliger
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Antireflection properties of monodisperse hollow silica nanospheres
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Monodisperse hollow silica nanospheres have been prepared by using a polystyrene nanosphere template-assistant approach and their potential as antireflection (AR) coatings for window applications has been discussed. The as-prepared hollow silica nanospheres have a typical inner diameter of 200 nm and a shell thickness of 15–20 nm. The AR effect over the ultraviolet-visible-near infrared spectral region has been observed for the hollow silica nanospheres, with a minimized reflection of about 5.2 % at 500 nm, compared to 8.5 % of a plain float glass substrate. By modifying the structural features of the hollow silica nanospheres, their AR properties can be…
Published in
Journal papers
Brukerundersøkelse om innemiljø på Marienlyst skole
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Innemiljøet på Marienlyst skole i Drammen, Norges første "passivhus-skole", er evaluert gjennom intervju og spørreskjema med brukere. Det er utført tre intervjurunder i løpet av 2011 med totalt 23 informanter; lærere, elever og representanter fra driftspersonalet. I tillegg er det utført en spørreskjemaundersøkelse om inneklimaet i slutten av 2011, for alle elever og ansatte.
Published in
Reports
Households on the Rebound. Factors Increasing and Decreasing Rebound Effects in Norwegian Households
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
This is a report on a study conducted in the spring of 2011 to examine the cultural and social conditions associated with rebound effects on the household level. The goal of the study was to conduct an empirical, qualitative exploration of the conditions that favour rebound effects. In economics, rebound effects are defined to occur when a measure intended to increase energy efficiency actually contributes to an increase of energy consumption. Examples of conditions that favour rebound effects include using heat pumps for cooling, leaving energy‐saving light bulbs on for longer periods or neglecting to shut them off entirely, or…
Published in
Reports
Det store bildet. Hvor er vi nå?
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Identifying important variables of energy use in low energy office building by using multivariate analysis
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Journal papers
On the proper integration of wood stoves in passive houses: Investigation using detailed dynamic simulations
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Wood stoves are attractive for the space-heating (SH) of passive houses. Nevertheless, there are still questions about their integration. Firstly, the power oversizing of the current stoves and their long operating time may lead to unacceptable overheating. Secondly, it is also unclear how one stove can ensure the thermal comfort in the entire building. The paper investigates these aspects using detailed dynamic simulations (TRNSYS) applied to a detached house in Belgium. An 8 kW stove is assumed to be representative of the lowest available powers in the market. Results confirm that a large power modulation is important to prevent overheating.…
Published in
Journal papers
Thermal Conductivty of TiO2 Nanotubes
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Thermal conductivity of TiO2 nanotubes prepared from a NaOH treatment of TiO2 particles with subsequent acid washing and annealing has been investigated. The obtained TiO2 nanotubes have a tetragonal anatase structure, and have a typical inner diameter of about 4-5 nm, wall thickness of about 2-3 nm, and length up to several hundred nanometers. TiO2 nanotubes show a significantly reduced thermal conductivity of about 0.40-0.84 W/(m·K) (average 0.62 W/(m.K)) at room temperature, as compared to about 8.5 W/(m·K) for the bulk TiO2 materials. The great suppression in thermal conductivity can be understood by means of increased phonon-boundary scattering and enhanced…
Published in
Journal papers
Venter løft for byggenæringen
Publication Year:
2009
Publication Year:
2009
Det viktigste som har hendt på lenge. Slik karakteriserer byggenæringen opprettelsen av deres eget forskningssenter. Artikkel i Teknisk Ukeblad skrevet av Mona Strande, publisert 9. februar 2009.
Published in
Media contributions
Nordahl Bruns gate 2. Gammelt bygg får ny jakke.
Publication Year:
2012
Publication Year:
2012
Et nytt bygg rundt det gamle skal sikre både økt areal og lav energibruk. Artikkel i Teknisk Ukeblad, skrevet av Joachim Seehusen, publisert 11. april 2012.
Published in
Media contributions
Monodisperse Hollow Silica Nanospheres for Nano Insulation Materials: Synthesis, Characterization; and Pre-Life Cycle Assessment
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
The application of manufactured nanomaterials provides not only advantages resulting from their unique properties but also disadvantages derived from the high energy use and CO2 burden related to their manufacture, operation, and disposal. It is therefore important to understand the trade-offs of process economics of nanomaterial production and their associated environmental footprints in order to strengthen the existing advantages while counteracting disadvantages. This work reports the synthesis, characterization, and life cycle assessment (LCA) of a new type of superinsulating materials, nano insulation materials (NIMs), which are made of hollow silica nanospheres (HSNSs) and have great flexibility in modifying their properties by…
Published in
Journal papers
Large-scale experimental wind-driven rain exposure investigations of building integrated photovoltaics
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Building integrated photovoltaics (BIPVs) are photovoltaic materials that replace conventional building materials in parts of the building envelopes, such as roofs or facades, i.e. the BIPV system serves dual purposes, as both a building envelope material and a power generator. Hence, it is important to focus on the building envelope properties of a BIPV system in addition to energy generation performance when conducting experimental investigations of BIPVs. The aim of this work was to illustrate challenges linked to the building envelope properties of a BIPV system, and to develop and evaluate relevant methods for testing the building envelope properties of…
Published in
Journal papers
Powerhouse. Kraftbygg skal sette verdensrekord
Publication Year:
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.
Published in
Media contributions
Erfaringer med markedsutvikling for høye energiambisjoner
Authors:
Publication Year:
2012
Authors:
Publication Year:
2012
Published in
Conference presentations
Download attachments:
Oppgradering av 80-tallshus til passivhusnivå, -Hvilke tiltak er mest effektive?– Hva er økonomisk gunstig?
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations
Designing for ideal users: how experts in the construction sector interpret users’ behaviours
Authors:
Publication Year:
2011
Authors:
Publication Year:
2011
Published in
Conference presentations