Fakultet for ingeniørvitenskap (IV)
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Contact Angles in Two-Phase Flow Images
(Peer reviewed; Journal article, 2020)In this work, we calculate contact angles in X-ray tomography images of two-phase flow in order to investigate the wettability. Triangulated surfaces, generated using the images, are smoothed to calculate the contact angles. ... -
Liquiñe‑Ofqui’s fast slipping intra‑volcanic arc crustal faulting above the subducted Chile Ridge
(Peer reviewed; Journal article, 2021)The southernmost portion of the Liquiñe-Ofqui fault zone (LOFZ) lies within the proposed slab window which formed due to oblique subduction of the Chile Ridge in Patagonia. Mapping of paleo-surface ruptures, offsets, and ... -
Energy density and fracture parameters of coated Scots pine
(Peer reviewed; Journal article, 2021)An attempt was made to investigate the Michalski’s proven fluctuation theory through the use of the fracture characteristic and the energy density – dynamic surface value – of Scots pine coated with Renaissance wax, paraloid, ... -
Application of the Guggenheim, Anderson, de Boer (GAB) equation to study the impact of sealing treatments on pine wood sorption characteristics
(Peer reviewed; Journal article, 2021)Surface treatments can modify the materials behavior toward water sorption phenomena. The Guggenheim–Andersen–de Boer sorption equation, already used in the past to study various wood species, is here proposed to investigate ... -
Sizing and performance analyses of a combined heating and cooling system with the integration of short- and long-term storages
(Peer reviewed; Journal article, 2021)Technological advancements in the utilization of renewable energy sources have unveiled potentials for increasing building energy efficiency. Integrating heat pump-based energy systems with thermal storages is a suitable ... -
Optimisation of flexible operation of natural gas combined cycles with postcombustion CO2 capture
(Doctoral theses at NTNU;2021:184, Doctoral thesis, 2021)Anthropogenic greenhouse gas emissions have continuously grown since the Industrial Revolution. Global warming is the result of increasing concentrations of these gases in the atmosphere, which create imbalances between ... -
Coupled Fluid–Solid Numerical Simulation for Flow Field Characteristics and Supporting Performance of Flexible Support Cylindrical Gas Film Seal
(Peer reviewed; Journal article, 2021)A new type of cylindrical gas film seal (CGFS) with a flexible support is proposed according to the working characteristics of the fluid dynamic seal in high-rotational-speed fluid machinery, such as aero-engines and ... -
A highly innovative yet cost-effective multi-generation energy system for net-zero energy buildings
(Peer reviewed; Journal article, 2021)This study introduced an innovative yet feasible and cost-effective solution to make a big step forward in the state-of-art of smart energy buildings and obtain a real meaning of net-zero energy building. In this study, ... -
Combining building automation control systems with envelope retrofitting to improve the energy performance of cold climate housing
(Doctoral theses at NTNU;2021:167, Doctoral thesis, 2021)Improving the energy efficiency of buildings by combining envelope and energy systems retrofitting with smart technologies is recommended by the Energy Performance of Buildings Directive. The largest share of the existing ... -
Protocols and Standard for Simulation Co-Simulation – For demanding maritime operations
(Doctoral theses at NTNU;2021:81, Doctoral thesis, 2021)There is a strong demand for innovation and efficiency within operations, life cycle services, and design of maritime systems. Modern vessels operate increasingly autonomously through strongly interacting sub-systems. These ... -
Mechanical properties of the most common European woods: a literature review.
(Peer reviewed; Journal article, 2020)Wood is an orthotropic material used since ancient time. A literature research about the mechanical properties of density, fracture toughness, modulus of elasticity, and Poisson’s ratio has been done to have a broader view ... -
Geometrically derived efficiency of slow immiscible displacement in porous media
(Peer reviewed; Journal article, 2020)The efficiency of a displacement is the fraction of applied work over the change in free energy. This displacement efficiency is essential for linking wettability to applied work during displacement processes. We quantify ... -
A Comprehensive Study of the Microclimate-Induced Conservation Risks in Hypogeal Sites: The Mithraeum of the Baths of Caracalla (Rome)
(Peer reviewed; Journal article, 2020)The peculiar microclimate inside cultural hypogeal sites needs to be carefully investigated. This study presents a methodology that aimed at providing a user-friendly assessment of the frequently occurring hazards in such ... -
Preliminary results on surface treatments on wood
(Peer reviewed; Journal article, 2020)One of the main issues of the international research project SyMBoL - Sustainable Management of Heritage Buildings in a Long-term perspective, is the evaluation of wood mechanical properties. Particularly, pine wood is ... -
Service life prediction of building components in the times of climate change
(Peer reviewed; Journal article, 2020)Buildings components and assemblies are prone to decay over time due to the inherent characteristics of the materials, environmental conditions and operational use of them. For this reason, it is very important to know the ... -
Varying Ignition Quality of a Fuel for a HCCI Engine Using a Photochemically-Controlled Additive: The Development of a ‘Smart’ Fuel
(Peer reviewed; Journal article, 2021)This study examines the possibility to provide control over ignition timing in a homogeneous charge compression ignition engine (HCCI) using a fuel additive whose molecular structure can be adapted upon exposure to UV ... -
Hysteresis of Natural Magnetite Ensembles: Micromagnetics of Silicate‐Hosted Magnetite Inclusions Based on Focused‐Ion‐Beam Nanotomography
(Peer reviewed; Journal article, 2020)Three‐dimensional geometries of silicate‐hosted magnetic inclusions from the Harcus intrusion, South Australia have been determined using focused‐ion‐beam nanotomography (FIB‐nt). By developing an effective workflow, the ... -
Comparative study of short-term extreme responses and fatigue damages of a floating wind turbine using two different blade models
(Journal article; Peer reviewed, 2020)In this work, two different blade structural models are used to estimate the blade deformations and the global structural responses of a 10MW floating offshore wind turbine (FOWT). One model is based on the Euler-Bernoulli ... -
A Testing Methodology for Quantification of Wind-Driven Rain Intrusion for Building-Integrated Photovoltaic Systems
(Peer reviewed; Journal article, 2021)Wind-driven rain (WDR) exposure is a crucial impact factor to consider for building envelope components and systems. The roof being a climate screen, shields inner structures from various precipitations preventing most of ... -
Microbial challenges in recirculating aquaculture systems (RAS) for Atlantic salmon (Salmo salar) smolt and post-smolt
(Doctoral thesis, 2021)Aquaculture is one of the fastest growing food producing sectors today. Norway is the world’s largest producer of farmed Atlantic salmon (Salmo salar), and the aquaculture industry is an important contributor to value ...
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