Publications
Optimizing the configuration of a facade module for office buildings by means of integrated thermal and lighting simulations in a total energy perspective
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2013
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2013
The building enclosure plays a relevant role in the management of the energy flows in buildings and in the exploitation of solar energy at a 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 artificial lighting energy demand is often not addressed. A comprehensive approach (i.e. including heating, cooling and artificial lighting energy demand) is instead necessary to reduce the total energy…
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Energy payback: An attributional and environmentally focused approach to energy balance in net zero energy buildings
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2013
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2013
Net zero energy buildings (nZEBs) are understood as grid-connected buildings which do not require net inputs of non-renewable energy over a defined period of their life cycle. Energy requirements of nZEBs have until now been assessed based on the impact buildings have on the existing energy system. This paper introduces a new approach to nZEB energy balance that takes into account the actual amount of energy nZEBs require. Energy balance methods previously proposed for nZEBs are illustrated in a new way and expressed in a series of equations based on a common terminology. Taking a different standpoint on the very…
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Energy Supply Solution for Low-Energy Commercial Buildings in Cold Climates
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2013
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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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What can we learn from case study buildings?
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2013
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2013
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Analysis of CO2 heat pump for low energy residential building
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2013
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2013
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Measurements and Simulations of Airborne Moisture Transport in Bathrooms
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2013
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2013
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Performance Evaluation of Combined Heat and Power (CHP) Applications in Low-Energy Houses
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2013
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2013
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Validation of user profiles for building energy simulation
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2013
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2013
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Modelling and Analysis of Heat Pumps for Zero Emission Buildings
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2013
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2013
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Encapsulated Vacuum Insulation Panels for Building Applications -Experimental Durability Investigations and Retrofitting Strategies
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2013
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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…
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Energiforsyning for bygning uten klimagassutslipp (ZEB) på Klimasenteret på Ringdalskogen
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2013
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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…
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Building Integrated Photovoltaics - A State-of-the-Art Review, Future Research Opportunities and Large-Scale Experimental Wind-Driven Rain Exposure Investigations
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2012
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2012
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Self-Cleaning Glazing Products: A State-of-the-Art Review and Future Research Pathways
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2012
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2012
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Cost Optimality of Energy System in Zero Emission Buildings in Early Design Phase
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2013
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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…
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Rehabilitering av eneboliger
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2013
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2013
Eneboliger kan nesten bli nullenergibygg, men kundene skygger unna. Skrevet av Joachim Seehusen
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Nå bygger Forsvaret nullhus
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2013
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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.
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ZEB får fortsette
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2013
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2013
Forskningsrådet gir ZEB ved NTNU gode tilbakemeldinger, og som ett av tre sentre får ZEB ny treårskontrakt og grønt lys for å fortsette både driften og forskningen i samme spor som de fire første leveårene.
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Grønt lys for ZEB
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2013
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2013
Forskning på nullutslippsbygg har fått gode resultater i Forskningsrådets evaluering, og ZEB får fortsette driften og forskningen i samme spor.
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Rehabmarkedet er enormt - og uutnyttet
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2013
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2013
Alt som skal til for å rehabilitere eldre eneboliger til moderne energistandarder er tilgjengelig. Men kundene skygger unna. Artikkel skrevet av Joachim Seehusen
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Gode skussmål til nullutslippsatsing
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2013
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2013
Zeb, forskningssenteret for nullutslippsbygg ved NTNU er sikret ny treårskontrakt med Forskningsrådet. Det er klart etter at senteret kommer svært godt ut av en fersk midtveisevaluering. Artikkelen er skrevet av Sølvi Waterloo Normannsen
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Zero energy renovation of single family houses
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2013
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2013
Thesis for the degree of Philosophiae Doctor
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Hourly load modeling of non-residential building stock
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2013
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2013
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A zero emision concept analysis of an office building
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2013
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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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A zero emission concept analysis of a single family home
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2013
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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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ZEB har fått sin første doktorgrad
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2013
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2013
Stipendiat ved NTNU og forskningsleder ved SINTEF Byggforsk, Birgit Risholt, disputerer 7. juni som første ZEB-PhD-kandidat siden senteret ble opprettet i 2009.
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The interaction between building and users in passive and zero-energy housing and offices: The role of interfaces, knowledge and user commitment
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2013
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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.
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Journal papers
Synthesis of Hallow Silica Nanospheres by Sacrificial Polystyrene Templates for Thermal Insulation applications
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2013
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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…
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Windows in the Buildings of Tomorrow; Energy Losers or Energy Gainers?
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2013
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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…
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FM towards zero emission buildings: Learning and professional development among energy operators of large buildings
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2013
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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…
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State-of-the-Art Analysis of Nearly Zero Energy Buildings. Country Report IEA HPP Annex 40 Task 1 - Norway
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2013
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2013
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Laboratorier for morgendagens løsninger
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2013
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2013
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Evaluering av energibruk i passivhus studentboliger
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2013
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2013
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Sustainable refurbishment of Ellebo Housing Estate
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2013
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2013
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Sustainable Facade Renovation. Using Dynamic Performance Simulations
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2013
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2013
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Impact on architectural quality, daylighting and thermal performance of different atria in renovation project
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2013
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2013
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Renovation of an office buildings in Bergen: architectural and daylighting design as a tool for energy efficiency
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2013
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2013
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Industrial Ecology and Nantotechnology
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2013
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2013
På Nanonkonferansen 18. mars 2013 var det speeddating med nanoforskere, som på 1 minutt presenterte nytt fra forskningsfronten. Klima- og forurensningsdirektoratet (Klif) og Forskningsrådet arrangerte konferansen for å belyse mulighetene og utfordringene som ligger i nanoteknologien.
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Kraftfullt miljøsatsing - Hvordan vi har jobbet for å få fram nye løsninger i Powerhouse?
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2013
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2013
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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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2013
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2013
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Eksempler på nær nullenergibygg
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2013
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2013
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Fremtidens byggstatus på forskningsfronten
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2013
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2013
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Hvordan anser markedet denne type bygg?
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2013
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2013
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Får verdens mest miljøvennlige boliger
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2013
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2013
Ådland får verdens mest miljøvennlige boliger, mener Arbeiderpartiets Ruth Grung. Tirsdag ga miljøvernministeren grønt lys for nullutslippboligene på Ådland. Skrevet at Terje Bringsvor Nilsen
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Hollow Silica Nanospheres as a Super-Insulating Material
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2013
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2013
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Her kommer det 800 miljøboliger
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2013
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2013
Miljøvernminister Bård Vegar solhjell ga grønt lys for miljøprosjekt på Ådland tirsdag.
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Grønt lys for grønne boliger i Blomsterdalen
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2013
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2013
Miljøverndepartementet har bestemt seg etter fylkesmannens klage.
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A New Nano Insulation Material for Applications in Zero Emission Buildings
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2013
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2013
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