Publications
Life Cycle GHG Emissions of Material Use in the Living Laboratory
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Publication Year:
2015
Authors:
Publication Year:
2015
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Reports
A zero emission concept analysis of a single family home
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Publication Year:
2013
Authors:
Publication Year:
2013
The main aim of the work has been to do modeling and calculations of the energy use, embodied emission and the total CO2-emission for a typical Norwegian residential building. By doing this we try to reveal and study the main drivers for the CO2-emission, and also which performance is necessary for components and solutions in a Zero Emission Building according to the current Norwegian ZEBdefinition.
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Reports
A zero emission concept analysis of a single family house: Part 2 sensitivity analysis
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Publication Year:
2015
Authors:
Publication Year:
2015
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Reports
NorDan skyvedør med VIP i Living Lab – beregning av U-verdi
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Publication Year:
2015
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Publication Year:
2015
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Reports
A guide to daylighting and solar shading systems at high latitudes
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Publication Year:
2011
Authors:
Publication Year:
2011
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Reports
A zero emision concept analysis of an office building
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Publication Year:
2013
Authors:
Publication Year:
2013
The main aim of the work has been to do modeling and calculations of the energy use, embodied emission and the total CO2-emissions for a typical Norwegian office building. The goal is to find the most important parameters in the design of a zero emission office building, according to the current ZEB definition.
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Reports
Cooling of PV panels by natural convection
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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.
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Reports
Beregning av kuldebroverider for golv på grunn
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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.
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Reports
CO2 emissions from Biofuels and District Heating
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Publication Year:
2013
Authors:
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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Reports
ZEP-report 27-2016. SINTEF Academic Press. ISBN 978-82-536-1507-3
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Publication Year:
2016
Authors:
Publication Year:
2016
Abstract The Zero Village Bergen consists of a total floor area of ca. 92 000 m2, with more than 700 dwellings divided between terraced houses (68% of total floor area) and apartment blocks (25%) and some area dedicated to non-residential purposes such as offices, shops, and a kindergarten (7%). The project is currently in the planning phase and the strategy for achieving the ZEB-O goal1 is based on three steps: first, minimize energy demand through energy efficiency of the buildings; second, maximize PV generation on the buildings' footprint; and third, consider additional measures onsite and nearby (e.g. local heating system…
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Reports
Miljøvennlig varmeforsyning til lavenergi- og passivhus. En casestudie.
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Publication Year:
2010
Authors:
Publication Year:
2010
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Reports
Energy Supply Solution for Low-Energy Commercial Buildings in Cold Climates
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Publication Year:
2013
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Publication Year:
2013
The aim of the study was to define an energy supply solutions for a low-energy commercial building in cold climates. A new low-energy office building built with high quality building insulation better than the Norwegian passive building standard was analyzed by using EnergyPlus. The results showed that the heat pump solutions could be used to cover the building base load, while the peak load should be covered by additional energy sources. Due to a high indoor temperature caused by the high quality building insulation standard, an increase in ventilation air flow was necessary during the summer. To fully utilize the…
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Conference papers
Measurements and Simulations of Airborne Moisture Transport in Bathrooms
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Publication Year:
2013
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Publication Year:
2013
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Conference papers
Nanotech Based Vacuum Insulation Panels for Building Applications
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Publication Year:
2016
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Publication Year:
2016
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Books
Lightweight and thermally insulating aerogel glass materials
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Publication Year:
2014
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Publication Year:
2014
Abstract Glass represents an important and widely used building material, and crucial aspects to be addressed include thermal conductivity, visible light transmittance, and weight for windows with improved energy efficiency. In this work, by sintering monolithic silica aerogel precursors at elevated temperatures, aerogel glass materials were successfully prepared, which were characterized by low thermal conductivity [k ≈ 0.17–0.18 W/(mK)], high visible transparency (Tvis ≈ 91–96 % at 500 nm), low density (ρ ≈ 1.60–1.79 g/cm3), and enhanced mechanical strength (typical elastic modulus Er ≈ 2.0–6.4 GPa). These improved properties were derived from a series of successive gelation and aging steps during the desiccation of silica aerogels. The involved sol → gel → glass transformation was investigated by means…
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Journal papers
Moisture Robustness During Retrofitting of Timber Frame Walls with Vacuum Insulation Panels: Experimental and Theoretical Studies
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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…
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Books
Partnering for the development of an energy-positive buildings. Case study of Powerhouse #1
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Publication Year:
2013
Authors:
Publication Year:
2013
Powerhouse #1 is planned to become the first and northernmost energy-positive office building. An alliance of companies within the Norwegian construction industry has been established to reach this ambition. Partnering has been suggested as a means to improve performance in general within the construction industry. Studies reveal that the industry is yet to yield the positive effects that have occurred in other industries. Strategic alliances such as Powerhouse are an exception within Norwegian construction industry. The paper analyses the case of Powerhouse #1 regarding collaborative working and experienced effects to the energy performance of the project. The material consists of…
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Conference papers
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The Thermal Performance of Wall-Integrated Phase Change Material Panels – Hot Box Experiments
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Publication Year:
2010
Authors:
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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Conference papers
Nanoelectrochromics with Applied Materials and Methodologies
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Publication Year:
2010
Authors:
Publication Year:
2010
Electrochromic (EC) materials that change their optical transmittance under an external electrical field may form the basis of “smart windows”, which are of great interest in forthcoming building technologies. Nanostructured EC materials or assemblies have revealed remarkable improvement on colouration efficiency and switching time due to their small featured sizes and large surface areas. Here, the recent progress of nanoelectrochromics is reviewed; the scientific and technical issues related to material preparation and device assembly for large-area and large-scale window applications are discussed.
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Conference papers
Application of Vacuum Insulation Panels in Retrofitting of Timber Frame Walls – An Experimental and Theoretical Study of Moisture, Thermal Performance and Robustness
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Publication Year:
2010
Authors:
Publication Year:
2010
A large amount of the buildings in Norway is from the 1970s. Many of these buildings have timber frame walls and are now ready to be retrofitted. Application of vacuum insulation panels (VIPs) can make it easier to improve the thermal insulation in building walls with a minimal additional thickness. Retrofitting of buildings using VIPs may therefore be done without large changes to the building, e.g. extension of the roof protruding and fitting of windows. Additionally, U-values low enough to fulfil passive house standars or zero energy building requirements may be achieved. Thus, contribute to a reduction of the energy…
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Conference papers
Nano Technology and Possibilities for the Thermal Building Insulation Materials of Tomorrow
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Publication Year:
2010
Authors:
Publication Year:
2010
Nanotechnology and possibilities for the thermal building insulation materials of tomorrow are explored within this work. That is, we are looking beyond both the traditional and the state-of-the-art thermal building insulation materials and solutions, e.g. beyond vacuum insulation panels (VIP). Thus advanced insulation material (AIM) concepts like vacuum insulation materials (VIM), gas insulation materials (GIM), nano insulation materials (NIM) and dynamic insulation materials (DIM) are introduced and defined. The VIMs and GIMs have closed pore structures, whereas the NIMs may have either open or closed pore structures. The objective of the DIMs are to dynamically control the thermal insulation material…
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Conference papers
Dynamic Solar Radiation Control in Buildings by Applying Electrochromic Materials
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Publication Year:
2010
Authors:
Publication Year:
2010
Smart windows like electrochromic windows (ECWs) are windows which are able to regulate the solar radiation throughput by application of an external voltage. The ECWs may decrease heating, cooling and electricity loads in buildings by admitting the optimum level of solar energy and daylight into the buildings at any given time, e.g. cold winter climate versus warm summer climate demands. In order to achieve as dynamic and flexible solar radiation control as possible, the ECWs 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…
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Conference papers
Proposal of a Norwegian ZEB definition: Storylines and Criteria
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Publication Year:
2010
Authors:
Publication Year:
2010
A clear and agreed definition of Zero Emission Building (ZEB) is yet to be achieved, both internationally and in Norway. However, it is understood that both the definition and the surrounding energy supply system will affect significantly the way buildings are designed to achieve the ZEB goal. Since the energy system in Europe is expected to change significantly in the coming decades, especially for electricity, it is indispensable to tie the definition of ZEB to possible scenarios on such development of the energy system. A scenario is defined as a combination of options chosen within a framework of different uncertain…
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Conference papers
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
Authors:
Publication Year:
2010
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Conference presentations
ZEB Definition: Assessing the Implications for Design
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Publication Year:
2010
Authors:
Publication Year:
2010
Conceptually a Zero Emission Building (ZEB) is a building with greatly reduced energy demand and able to generate electricity (or other carriers) from renewable sources in order to achieve a carbon neutral balance. However, a rigorous and agreed definition of ZEB is yet to come. A parallel paper in this conference explains how a formal and comprehensive ZEB definition can be based on the evaluation of certain criteria. These criteria are extensively discussed in ongoing projects, both in Norway and internationally. The objective of this paper is to focus on two of these criteria: energy performance and credits used to…
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Conference papers
User evaluations of passive houses and low energy buildings – Literature Review and Further Research
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Publication Year:
2010
Authors:
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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Conference papers
Nullutslippsbygg bidrar til grønt skifte
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Publication Year:
2016
Authors:
Publication Year:
2016
Published in
Popular Science Articles
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Høyere miljøambisjoner med ekstern kontroll
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Publication Year:
2014
Authors:
Publication Year:
2014
Published in
Popular Science Articles
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Architectural design og Zero Emission Buildings - The case of the LivingLAB at the ZEB research centre
Authors:
Publication Year:
2016
Authors:
Publication Year:
2016
Published in
Books
Electrochromic Smart Windows for Dynamic Daylight and Solar Energy Control in Buildings
Authors:
Publication Year:
2015
Authors:
Publication Year:
2015
Published in
Books