Blar i NTNU Open på forfatter "Jelle, Bjørn Petter"
-
Cost effectiveness of higher thermal resistance in commercial buildings
Sølberg, Simon Christoffer (Master thesis, 2014)Using energy simulation software this report studies a typical Norwegian commercial buildings thermal energy loss. The buildings energy use is simulated and analyzed using SIMIEN, for four levels of thermal resistance in ... -
Developing low-conductance window frames: Capabilities and limitations of current window heat transfer design tools - State-of-the-art review
Gustavsen, Arild; Arasteh, Dariush; Jelle, Bjørn Petter; Curcija, Dragan; Kohler, Christian (Journal article; Peer reviewed, 2008)While window frames typically represent 20—30% of the overall window area, their impact on the total window heat transfer rates may be much larger. This effect is even greater in low-conductance (highly insulating) windows ... -
Development and Investigation of New Materials and Technologies for Utilization in Zero Emission Buildings
Jelle, Bjørn Petter; Gao, Tao; Ng, Serina (Chapter, 2018)The demand for zero emission buildings (ZEB) and energy-producing buildings is increasing along with the growing focus on material resource abundance and scarcity, energy efficiency, renewable and non-polluting energy ... -
Development of a Model for Radon Concentration in Indoor Air
Jelle, Bjørn Petter (Journal article; Peer reviewed, 2012)A model is developed for calculation of the radon concentration in indoor air. The model takes into account various important parameters, e.g. radon concentration in ground, radon diffusion resistance of radon barrier, air ... -
Development of a New Thermally Insulating and Structural Green Concrete for Lean Constructions
Ng, Serina; Jelle, Bjørn Petter (Chapter, 2016)A new class of thermally insulating, structural concrete was designed and developed in-house. This was carried out by the fusion of current concrete/ mortar technology with aerogel granulates in an effort to produce a lean ... -
Durability Evaluation of Adhesive Tapes for Building Applications
Fufa, Selamawit Mamo; Labonnote, Nathalie; Frank, Susanne Gabriele Martha; Rüther, Petra; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2018)In the building sector, various adhesive materials are experiencing an increased usage for sealing of overlaps and joints between most commonly used building materials, around penetrations, pipes and windows for increasing ... -
Durability of Vacuum Insulation Panels in Alkaline Environment
Helgerud, Synne Christina (Master thesis, 2012)Concrete and lightweight concrete elements are today used in various building applications to a great extent all over the world. Replacing traditional thermal insulation like e.g. expanded polystyrene (EPS), extruded ... -
Durability, Reaction to Fire Properties and Environmental Impact of Treated and Untreated Wooden Claddings
Fufa, Selamawit Mamo; Jelle, Bjørn Petter; Hovde, Per Jostein (Journal article; Peer reviewed, 2013)This work summarizes the output of durability, reaction to fire properties, and environmental impact of wooden claddings subjected to treatments modified with TiO2 and clay nanoparticles. The objective was to investigate ... -
Durability-Enhanced Vanadium Dioxide Thermochromic Film for Smart Windows
Zhao, Xinpeng; Alex Mofid, Sohrab; Gao, Tao; Tan, Gang; Jelle, Bjørn Petter; Yin, Xiaobo; Yang, Ronggui (Peer reviewed; Journal article, 2020)Vanadium dioxide (VO2)–based thermochromic films are of great interest for energy-saving smart windows as they can dynamically change the solar transmittance as the ambient temperature changes. However, VO2 is thermodynamically ... -
Dynamic Light Modulation in an Electrochromic Window consisting of Polyaniline, Tungsten Oxide and a Solid Polymer Electrolyte
Jelle, Bjørn Petter; Hagen, Georg K; Sunde, Svein; Ødegård, Rolf (Journal article; Peer reviewed, 1993)The electrochemical and optical properties of an electrochromic window consisting of the two complementary electrochromic materials, polyaniline (PANI) and tungsten oxide (WO3), have been investigated. Both PANI and WO3 ... -
The Economics of Thermal Superinsulation in Buildings
Wernery, Jannis; Mancebo, Francisco; Malfait, Wim J.; O'Connor, Michael; Jelle, Bjørn Petter (Peer reviewed; Journal article, 2021)In comparison to conventional thermal insulators, superinsulation materials (SIMs), such as silica aerogel or vacuum insulation panels, provide a similar insulation performance at half to a quarter of the material thickness ... -
Effect of facade components on energy efficiency in office buildings
Ihara, Takeshi; Gustavsen, Arild; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2015)Properties of facade materials should be considered to determine which of them strongly affect building energy performance, regardless of the building shapes, scales, ideal locations, and building types, and thus may be ... -
Effect of storage and curing conditions at elevated temperatures on aerogel-incorporated mortar samples based on UHPC recipe
Ng, Serina; Jelle, Bjørn Petter; Zhen, Yingpeng; Wallevik, Olafur Haralds (Journal article; Peer reviewed, 2016)The effect of elevated temperature during storage and curing of ultra-high performance concrete (UHPC) formulated aerogel-incorporated mortar (AIM) samples was investigated. It was found that an effective aerogel loading ... -
Effective energy solutions using facade materials with highly reflective coatings and aerogel granulate glazing systems
Ihara, Takeshi (Doctoral thesis at NTNU;2016:146, Doctoral thesis, 2016)We are facing an urgent problem of reducing carbon dioxide emissions in order to mitigate climate change. The building sector is a main source of carbon dioxide emissions. This thesis is trying to contribute to the ... -
Effects of TiO2 and Clay Nanoparticles Loading on Weathering Performance of Coated Wood
Fufa, Selamawit Mamo; Jelle, Bjørn Petter; Hovde, Per Jostein (Journal article; Peer reviewed, 2013)The weathering performance of Norway spruce coated with acrylic water based paint mixed with TiO2 and clay nanoparticles were investigated. Uncoated specimens and specimens coated with unmodified paint were used as references. ... -
Electrochemical multilayer deposition of polyaniline and Prussian Blue and their application in solid state electrochromic windows
Jelle, Bjørn Petter; Hagen, Georg K (Journal article; Peer reviewed, 1998)In an attempt to enhance the solar modulation in electrochromic windows, the electrochemical deposition of polyaniline (PANI) and prussian blue (PB been studied more closely. Several layers of PANI and PB at different ... -
Electrochromic Properties of WO3 Thin Films: The Role of Film Thickness
Zhen, Yingpeng; Jelle, Bjørn Petter; Gao, Tao (Journal article, 2020)Tungsten oxide (WO3) thin films with various thicknesses of approximately 36, 72, 108, and 180 nm were prepared using radio frequency sputtering method. Film thickness can be controlled at nanoscale. In addition, X‐ray ... -
Electrochromic Tungsten Oxide Nanofilms and Ionic Liquid Based Ion Conductor for Smart Windows Development: Preparation, Characterization and Applications
Zhen, Yingpeng (Doctoral theses at NTNU;2022:62, Doctoral thesis, 2022)The main objective of this thesis is to investigate electrochromic nanofilms and ionic liquid ion conductors (electrolyte) to make electrochromic devices for electrochromic smart window development. Electrochromic film and ... -
Electrochromism of Hexagonal Sodium Tungsten Bronze Nanorods
Gao, Tao; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2018)Single-crystalline sodium tungsten bronze (Na-WO3) nanorods with typical diameters of 10–200 nm and lengths of several microns have been prepared via a simple hydrothermal method. The as-prepared Na-WO3 nanorods crystallize ... -
Expanding knowledge base for photovoltaic systems’ integration by contributing to the development of an experimental testing method for evaluation of their performance as climate screens
Hesthagen, Anna (Doctoral theses at NTNU;2023:428, Doctoral thesis, 2023)Building-integrated photovoltaic (BIPV) is a vital element of zero energy or zero emission buildings (ZEB). BIPV systems are integrated into the building envelope and generate electricity on-site during the expected service ...