Publications
A zero emision concept analysis of an office building
Authors:
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.
Published in
Reports
Hvordan legger myndighetene til rette for en innovativ og bærekraftig arkitektur? Erfaringer fra arbeidet med Powerhouse-prosjektene
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
Nå bygger Forsvaret nullhus
Publication Year:
2013
Publication Year:
2013
Det nye administrasjonsbygget til forsvaret har et årlige beregnet energiforbruk på 16 kWh per kvadratmeter. Dette blir dermed et av landets mest energieffektive kontorbygg. Artikkel skrevet av Mari Gisvold Garathun.
Published in
Media contributions
The interaction between building and users in passive and zero-energy housing and offices: The role of interfaces, knowledge and user commitment
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
The article's aim is to present user experiences with passive houses and zero-energy buildings. The focus is on the interaction between the building and the users, specifically on how user interfaces, knowledge, and commitment influence the use of the building and the level of energy consumption awareness.
Published in
Journal papers
Synthesis of Hallow Silica Nanospheres by Sacrificial Polystyrene Templates for Thermal Insulation applications
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Monodisperse polystyrene (PS) spheres with controllable size have been synthesized by a straight forward and simple procedure. The as-synthesized PS spheres have a typical diameter ranging from ~180 nm to ~900 nm, where a reduced sphere size is obtained by increasing the polyvinylpyrrolidone (PVP)/styrene weight ratio. The PS spheres function as sacrificial templates for the fabrication of hollow silica nanospheres (HSNSs) for thermal insulation applications. By modifying the silica coating process, HSNSs with different surface roughness are obtained. All resulting HSNSs show typically a thermal conductivity of about 20 mW/(mK), indicating that the surface phonon scattering is probably not significant…
Published in
Journal papers
Fremtidens byggstatus på forskningsfronten
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
Download attachments:
Fra energisluk til energiprodusent
Publication Year:
2013
Publication Year:
2013
Et ordinært kontorbygg fra 80-tallet skal skape mer energi enn det bruker.
Published in
Media contributions
Download attachments:
Eksempler på nær nullenergibygg
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
Download attachments:
FM towards zero emission buildings: Learning and professional development among energy operators of large buildings
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Drawing on theories from studies of Facilities Management (FM) and social studies of science and technology as well as explorative qualitative research methods the purpose of this paper is to examine energy operations of large, existing buildings and how knowledge development and knowledge transfers may provide lessons for how FM of existing buildings may contribute to transition towards zero emission buildings. In this energy operation of existing buildings is described as an important measure towards sustainability. The relevant actors explored for this study are related to large non-residential buildings (university), and different types of large housing facilities (health rehabilitation and…
Published in
Conference papers
Windows in the Buildings of Tomorrow; Energy Losers or Energy Gainers?
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
One of the most effective actions for reduction of energy loss through the building envelope is to optimize the thermal performance, area and localization of the transparent components in the façade in order to obtain minimal heat losses and optimal solar gains. When considering the thermal performance of these transparent components, one should consider, not only heat loss (or gains) caused by thermal transmission, but also the beneficial effects of incident solar radiation and hence reduced demand for heating and artificial lighting. This study presents calculations for a range of windows as part of a building where the coupled effects…
Published in
Journal papers
Energieffektivisering i bygninger. Forsknings- og demonstrasjonsaktiviteter med utgangspunkt i ZEB
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
Rehabilitering av eneboliger
Publication Year:
2013
Publication Year:
2013
Eneboliger kan nesten bli nullenergibygg, men kundene skygger unna. Skrevet av Joachim Seehusen
Published in
Media contributions
Heat pump options for low energy office buildings in cold climate
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Journal papers
Experimental Pathways for Achieving Superinsulation through Nano Insulation Materials
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference papers
Robustness classification of materials, assemblies and buildings
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Reliable methods are needed for classifying the robustness of buildings and building materials for many reasons, including ensuring that constructions can withstand the climate conditions resulting from global warming, which might be more severe than was assumed in an existing building’s design. Evaluating the robustness of buildings is also important for reducing process-induced building defects. We describe and demonstrate a flexible framework for classifying the robustness of building materials, building assemblies, and whole buildings that incorporates climate and service life considerations.
Published in
Journal papers
Interior Insulation Retrofit of a Brick Wall Using Vacuum Insulation Panels: Design of a Laboratory Study to Determine the Hygrothermal Effect on Existing Structure and Wooden Beam Ends
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Journal papers
The first phase of a Zero Emission Concept for an Office Building in Norway
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference papers
Navigating standards – constituting engineering practices – how do engineers in consulting environments deal with standards?
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Standards and regulations can play a central role in policies to achieve environmentally sound and energy-efficient buildings. This paper sets out to explore how consulting engineers relate to standards designed to impose sustainability in the construction of new buildings and in waste management. The paper addresses four cases of engineering practices. The first case describes practical skills and tools involved in what the engineers considered as ‘normal’ practices when performing energy calculations in the development of new buildings. The second and third cases deal with energy in new buildings as well, but address practices that supported or enabled the engineers…
Published in
Journal papers
Critical Sensible and Latent Effectiveness for Membrane Type Energy Recovery Ventilator (ERV) in Cold Climates
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
User evaluation of vacuum insulation in clay blocks
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Hollow Silica Nanospheres as a Superinsulating Material
Authors:
Publication Year:
2013
Authors:
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.
Published in
Conference papers
A New Nano Insulation Material for Applications in Zero Emission Buildings
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Download attachments:
A Design of Sustainable Energy Supply System of Shoebox Residential Building
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Between Research and Practice: Experts on Implementing Sustainable Construction
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Journal papers
Paraotwayite-Type α-Ni(OH)2 Nanowires: Structural, Optical and Electrochemical Properties
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Journal papers
Measurements and Simulations of Airborne Moisture Transport in Bathrooms
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference papers
Frame Stability of Tunnel-Structured Cryptomelane Nanofibers: The Role of Tunnel Cations
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
The role of tunnel K+ ions on the growth and stability of tunnel-structured cryptomelane-type MnO2 nanofibers (denoted as cryptomelane nanofibers hereafter) has been discussed by means of X-ray diffraction and electron microscopy. Cryptomelane nanofibers with typical diameters of 20–80 nm and lengths of 1–6 μm have been synthesized by means of a simple hydrothermal reaction of KMnO4 and MnSO4 aqueous solutions at 140 °C. The growth of cryptomelane nanofibers under hydrothermal conditions follows a dissolution–recrystallization process and involves a morphological transformation from a layered precursor to the tunnel-structured cryptomelane, in which the K+ ions play important roles in templating and…
Published in
Journal papers
Encapsulated Vacuum Insulation Panels for Building Applications -Experimental Durability Investigations and Retrofitting Strategies
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Vacuum insulation panels (VIPs) are a high-performance thermal insulation solution, which offer a much higher heat resistance than traditional insulation materials. Thus, is enabling a reduction in thickness of the building envelope, thereby solving one of the major challenges in today's requirements of energy-efficient buildings. Hence, the area efficiency in buildings will increase, and the slimmer walls may lead to increased daylight admission through the window partitions. Furthermore, it gives the possibility of retrofitting existing buildings towards today's standards within acceptable economical and practical measures. Reduction of thermal heat resistance is one of the major challenges when using VIP, thus…
Published in
Reports
Dynamic Building Envelope Components and nearly Zero Energy Buildings: Theoretical and experimental analysis of concepts, systems and technologies for an adaptive building skin
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Due to the significant impact of the building sector on greenhouse gas emissions, newer and stricter regulations aimed at reducing total energy use in buildings have appeared in the last few years. In the European context, all the new constructions will thus soon be asked to be nearly Zero Energy Buildings (nZEB). In order to reach this target, new concepts and technologies capable of further improving buildings’ energy efficiency need to be developed. A very promising strategy to overcome current technology limitations is represented by revisiting the conventional approach that considers the building as a static object and moves towards…
Published in
Reports
Cost Optimality of Energy System in Zero Emission Buildings in Early Design Phase
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
A survey among relevant consultants and contractors shows the need for better knowledge and more systematic information in order to make decisions regarding the selection of system for energy supply of ZEBs (Zero Emission Buildings). The ZEB centre aims to develop a computerbased tool for this purpose that will include both a calculation tool and an information database. This assignment will be part of this development. The main objective of this work is to evaluate the cost optimality of different energy systems for a ZEB using the European cost optimal methodology introduced in the context of the EPBD (Energy Performance…
Published in
Reports
Energiforsyning for bygning uten klimagassutslipp (ZEB) på Klimasenteret på Ringdalskogen
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
I dag har bygninger en andel på 30 % av verdens energiforbruk og står for 20 % av klimagassutslippene globalt sett. Regjeringen har derfor som mål å skjerpe energikravene i byggeteknisk forskrift til passivhusnivå i 2015 og nesten nullutslippsnivå i 2020. For å oppnå et bygg med nesten nullutslippsnivå vil bygget normalt være tilknyttet nettet. Dette på bakgrunn av at energien importert fra energinettet, til bygningen, er ansvarlig for visse utslipp. Eksport av fornybar energi fra bygningen tilbake til energinettet er ansvarlig for å unngå lignende utslipp av andre (ikke-fornybare) energivarer koblet til samme energinett.Brødrene Dahl ønsker å se på…
Published in
Reports
Analysis of CO2 heat pump for low energy residential building
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Modelling and Analysis of Heat Pumps for Zero Emission Buildings
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Energy Performance Assessment of Advanced Integrated Facades by Means of Synthetic Metrics
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Façades play an important role in architecture, with deep implications in both the quality of the indoor environment and the appearance of the building. R&D in the field of energy conservation is moving toward advanced integrated façades (AIFs): these are innovative and dynamic façades deeply connected with the building equipment. Their dynamic features allow the energy performance of the façade to be optimized, adapting its behavior to different boundary conditions. The substantial lack of synthetic performance parameters to assess and to characterize the energy performance of AIFs is one of the main limitations to the widespread of these technologies. This…
Published in
Journal papers
Three scenarios for the future of sustainable engineering in the built environment
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
Hourly load modeling of non-residential building stock
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Conference presentations
Performance Evaluation of Combined Heat and Power (CHP) Applications in Low-Energy Houses
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Emission Accounting of a Wooden Passive House from Life Cycle Perspective
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Validation of user profiles for building energy simulation
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Impact on architectural quality, daylighting and thermal performance of different atria in renovation project
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
Investigation of the Air-Heating Concept for Norwegian Passive Houses
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
The German definition of the passive house standard is strongly related to the air-heating (AH) concept, while this concept is not explicitly connected with the Norwegian definition (NS 3700 standard). As AH presents an opportunity for space-heating (SH) simplification, the AH potential is here investigated in the Norwegian context. The questions of the required AH temperatures, of the temperature distribution between rooms and the influence of losses from ventilation ducts are investigated using detailed dynamic simulations (here using TRNSYS). This is done using a typical detached house typology, both considering different building construction materials as well as different climate zones…
Published in
Conference papers
Download attachments:
Renovation of an office buildings in Bergen: architectural and daylighting design as a tool for energy efficiency
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
Published in
Reports
A Norwegian Zero Emission Building Definition
Authors:
Publication Year:
2013
Authors:
Publication Year:
2013
The aim of the Norwegian research centre on Zero Emission Buildings(ZEB) is to develop competetive products and solutions of buildings with zero emission of greenhouse gases related to their production, operation and demolition. However, to develope solutions and concepts for zero emission buildings it is first necessarry to develop a sound definition of ZEB (for single buildings, and also cluster of buildings). During the first 3 years of the centres running, significant work have been done to adress different issues related to the ZEB-definition, among them defining CO2 factors for various energy wares. Work done in the International Energy Agency…
Published in
Conference papers
Bygger Norges første plusshuss
Publication Year:
2013
Publication Year:
2013
Hele 1556 kvadratmeter med solceller gjør at Norge får sitt første plusshus i Bærum. Artikkelen skrevet av Caroline Drefvelin.
Published in
Media contributions
Download attachments:
A net zero emission concept analysis of a Norwegian single family house – A CO2 accounting method
Authors:
Publication Year:
2013
Authors:
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…
Published in
Conference papers