Blar i NTNU Open på forfatter "Jelle, Bjørn Petter"
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Experimental Investigations of Aerogel-Incorporated Ultra-High Performance Concrete
Ng, Serina; Jelle, Bjørn Petter; Sandberg, Linn Ingunn Christie; Gao, Tao; Wallevik, Olafur Haralds (Journal article; Peer reviewed, 2015)Improvements to concrete will have a large impact in the construction and building sector. As the attention is drawn towards energy-efficient and zero emission buildings, the thermal properties of concrete will be important. ... -
Experimental Investigations of Miscellaneous Aerogel Systems Intended for Application in Building Envelopes
Jelle, Bjørn Petter; Gao, Tao (Chapter, 2018)Aerogels may have a promising future as a high-performance thermal insulation material in building envelopes, where the aerogel material achieves its very low thermal conductivity from its air-filled low density silica ... -
Fatigue Resistance of Double Sealant Composed of Polyisobutylene Sealant Adjacent to Silicone Sealant
Ihara, Takeshi; Gustavsen, Arild; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2014)With the aid of current sealant technologies, a double sealant comprising adjacent silicone and polyisobutylene sealants may be used to enhance the durability of buildings. The inner silicone sealant is quite durable owing ... -
Feasibility Study of Novel Integrated Aerogel Solutions
Sletnes, Malin; Jelle, Bjørn Petter; Risholt, Birgit Dagrun (Journal article; Peer reviewed, 2017)The market share for fibre reinforced aerogel insulation materials is expected to increase as production costs are lowered, and in this context, the development of layered products with integrated aerogel is highly ... -
Fenestration of Today and Tomorrow: A State-of-the-Art Review and Future Research Opportunities
Jelle, Bjørn Petter; Hynd, Andrew; Gustavsen, Arild; Arasteh, Dariush; Goudey, Howdy; Hart, Robert (Journal article; Peer reviewed, 2012)Fenestration of today is continuously being developed into the fenestration of tomorrow, hence offering a steadily increase of daylight and solar energy utilization and control, and at the same time providing a necessary ... -
Fourier Transform Infrared Radiation Spectroscopy Applied for Wood Rot Decay and Mould Fungi Growth Detection
Jelle, Bjørn Petter; Hovde, Per Jostein (Journal article; Peer reviewed, 2012)Material characterization may be carried out by the attenuated total reflectance (ATR) Fourier transform infrared (FTIR) radiation spectroscopical technique, which represents a powerful experimental tool. The ATR technique ... -
A framework for classification of snow- and icephobicity
Borrebæk, Per-Olof; Rønneberg, Sigrid; Jelle, Bjørn Petter; Klein-Paste, Alex; Zhang, Zhiliang; He, Jianying (Peer reviewed; Journal article, 2020)For decades, there has been no proper thermodynamic definition of icephobicity. Some claim icephobic properties at an adhesion lower than 100 kPa, whereas others claim it when the accretion of ice is significantly prolonged. ... -
Fukt- og brannsikkerhet i trefasader
Vikdal, Aleksander (Master thesis, 2016)Trehusbebyggelse står ovenfor en rekke utfordringer i forbindelse med brann- og fuktsikkerhet. Ytterveggkonstruksjonene står her sentralt da det er disse som i aller størst grad må utholde påkjenningene fra vær, vind og ... -
Gas-filled panels for building applications: A state-of-the-art review
Baetens, Ruben; Jelle, Bjørn Petter; Gustavsen, Arild; Grynning, Steinar (Journal article; Peer reviewed, 2010)With their thermal conductivity down to 10 mW/(mK), gas-filled panels (GFPs) are regarded as possible high performance thermal insulating solutions for building applications. However, thermal conductivities of respectively ... -
High-Performance Nano Insulation Materials for Energy-Efficient Buildings
Jelle, Bjørn Petter; Tilset, Bente Gilbu; Gao, Tao; Grandcolas, Mathieu; Løvvik, Ole Martin; Bohne, Rolf André; Alex Mofid, Sohrab; Ng, Serina; Sagvolden, Espen (Chapter, 2017) -
Hollow Silica Nanospheres as a Possible Pathway towards Thermal Super Insulation Materials
Jelle, Bjørn Petter; Alex Mofid, Sohrab; Gao, Tao; Grandcolas, Mathieu (Chapter, 2021)The world community is shifting its focus towards energy-efficiency, material scarcity versus abundancy, and renewable and non-polluting energy sources, with an ever increasing awareness that we need to pursue sustainable ... -
Hollow Silica Nanospheres as Thermal Insulation Materials for Construction: Impact of their Morphologies as a Function of Synthesis Pathways and Starting Materials
Ng, Serina; Jelle, Bjørn Petter; Sandberg, Linn Ingunn; Gao, Tao; Alex Mofid, Sohrab (Journal article; Peer reviewed, 2018)Hollow silica nanospheres (HSNS) show a promising potential to become good thermal insulators with low thermal conductivity values for construction purposes. The thermal conductivity of HSNSs is dependent on their structural ... -
Hot Box Investigations and Theoretical Assessments of Miscellaneous Vacuum Insulation Panel Configurations in Building Envelopes
Grynning, Steinar; Jelle, Bjørn Petter; Uvsløkk, Sivert; Gustavsen, Arild; Baetens, Ruben; Caps, Ronald; Meløysund, Vivian (Journal article; Peer reviewed, 2011)Vacuum insulation panels (VIPs) are regarded as one of the most promising existing high performance thermal insulation solutions on the market today as their thermal performance typically range 5—10 times better than ... -
Hygrothermal Properties of Compressed Earthen Bricks
Zhang, Lei; Yang, Liu; Jelle, Bjørn Petter; Wang, Yu; Gustavsen, Arild (Journal article; Peer reviewed, 2018)The present study investigates the relationship between bulk density and hygrothermal behaviour of compressed earthen bricks. The experimental results show that the thermal conductivity linearly increases from 0.5228 W/(m ... -
Impact of convection on thermal performance of aerogel granulate glazing systems
Ihara, Takeshi; Grynning, Steinar; Gao, Tao; Gustavsen, Arild; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2015)Among currently available window systems, aerogel granulate glazing systems are considered promising for achieving good thermal and visual comfort in buildings. In aerogel granulate glazing systems, it is important to ... -
Implementation of Radon Barriers, Model Development and Calculation of Radon Concentration in Indoor Air
Jelle, Bjørn Petter; Noreng, Knut; Erichsen, Tore Henrik; Strand, Terje (Journal article; Peer reviewed, 2011)Norway has some of the highest concentrations of radon in indoor air in the world. Based on large-scale surveys by direct measurements of radon in indoor air it has been estimated that nearly 9% of the housing stock has ... -
Impregnated Wooden Claddings and the Influence of Nanoparticles on the Weathering Performance
Fufa, Selamawit Mamo; Jelle, Bjørn Petter; Hovde, Per Jostein; Rørvik, Per Martin (Journal article; Peer reviewed, 2012)This work was an investigation of the effect of nanoparticles on the durability of wood specimens exposed to artificial weathering. TiO2 and clay nanoparticles were mixed with preservative (Wolmanit CX-8) for improving the ... -
Improving Thermal Insulation of Timber Frame Walls by Retrofitting with Vacuum Insulation Panels – Experimental and Theoretical Investigations
Sveipe, Erland; Jelle, Bjørn Petter; Wegger, Erlend; Uvsløkk, Sivert; Grynning, Steinar; Thue, Jan Vincent; Time, Berit; Gustavsen, Arild (Journal article; Peer reviewed, 2011)Many of the Norwegian buildings from the 1960s–1980s with timber frame walls are ready for retrofitting. Retrofitting of these buildings with vacuum insulation panels (VIPs) may be performed without significant changes to ... -
In Vitro Cell Composition Identification of Wood Decay Fungi by Fourier Transform Infrared Spectroscopy
Gupta, Barun Shankar; Jelle, Bjørn Petter; Gao, Tao (Peer reviewed; Journal article, 2022)Decay pathogens follow dissimilar metabolic mechanisms to cause irreversible damage to woody tissues. The objective of this study is to perform inter- and intra-species microbial cell structural comparison using attenuated ... -
Incorporation of Polymers into Calcined Clays as Improved Thermal Insulating Materials for Construction
Ng, Serina; Jelle, Bjørn Petter (Journal article; Peer reviewed, 2017)Calcined clay is a Type Q supplementary cementing material according to EN197-1:2000. It possesses lower thermal conductivity than cement. To further improve its thermal insulation property, polymer-calcined clay complexes ...