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A zero emission concept analysis of a single family house: Part 2 sensitivity analysis
(ZEB Project report;21-2015, Research report, 2015)This report presents the results from a sensitivity analysis regarding the influence of using emission data from Norwegian EPD’s instead of the generic data from Ecoinvent, using different CO2eq-factors (for electricity ... -
A zero emission concept analysis of an office building
(ZEB Project report;8-2013, Research report, 2013) -
Absorber for concentrating solar heat collectors
(Master thesis, 2011)Open volumetric absorbers have been tested and evaluated with the objective to determine their ability to heat air for small scale concentrating solar systems, more exactly a solar oven where a stove is heated up by a rock ... -
Accuracy Assessment of the Cartesian grid method for compressible inviscid flows using a simplified ghost point treatment
(Peer reviewed; Journal article, 2011)We introduce a new approach to treat ghost points near embedded boundaries tosolve the 2D compressible Euler equations on a Cartesian grid. Solid wall boundary conditionsare imposed by our new approach called simplified ... -
Accurate measurements of CO2 rich mixture phase equilibria relevant for CCS transport and conditioning
(Journal article; Peer reviewed, 2013)This paper describes the experimental rig that has been constructed for the measurements of phase equilibrium of CO2-rich mixtures under relevant conditions for CCS transport and conditioning. The rig is believed to have ... -
Accurate phase equilibrium measurements of CO2 mixtures
(Journal article; Peer reviewed, 2014)A new setup for accurate measurement of phase behavior of CO2-rich mixtures relevant for CCS has been designed, covering a range between - 60 and 150 °C in temperature and 0.4 and 20 MPa in pressure. In order to design ... -
Accurate quantum-corrected cubic equations of state for helium, neon, hydrogen, deuterium and their mixtures
(Journal article; Peer reviewed, 2020)Cubic equations of state have thus far yielded poor predictions of the thermodynamic properties of quantum fluids such as hydrogen, helium and deuterium at low temperatures. Furthermore, the shape of the optimal α functions ... -
Achieving highly practical capacitance of MnO2 by using chain-like CoB alloy as support
(Journal article; Peer reviewed, 2018)The practical performance of MnO2 as a capacitor material is limited mainly by its poor electronic conductivity. Arranging MnO2 on the conductive backbone to form a unique hierarchical nanostructure is an efficient way to ... -
Achieving the Sustainable Development Goals in the post-pandemic era
(Peer reviewed; Journal article, 2022)The COVID-19 pandemic continues to pose substantial challenges to achieving the Sustainable Development Goals (SDGs). Exploring systematic SDG strategies is urgently needed to aid recovery from the pandemic and reinvigorate ... -
Achieving zero-energy building performance with thermal and visual comfort enhancement through optimization of fenestration, envelope, shading device, and energy supply system
(Peer reviewed; Journal article, 2021)Building retrofitting towards nearly zero energy building (nZEB) with comfortable visual and thermal conditions, requires a comprehensive parametric analysis of building retrofit measures. This paper presented an optimization ... -
Acid Gas Removal in Geothermal Power Plant in Iceland
(Journal article; Peer reviewed, 2016-01)A large part of the energy covering the electricity and heating demands in Iceland is generated in geothermal power plants. The Hellisheiði power plant, designed for 300 MWe and 133 MWth, is located in close proximity to ... -
Acoustic-Convective Interference in Transfer Functions of Methane/Hydrogen and Pure Hydrogen Flames
(Peer reviewed; Journal article, 2021)We investigate the occurrence and source of modulations in the gain and phase of flame transfer functions (FTF) measured in perfectly premixed, bluff body stabilized CH4=H2 and pure H2 flames. The modulations are shown to ... -
An action plan for the agri-food sector at the time of the climate and biodiversity crises
(Journal article; Peer reviewed, 2023) -
Active and passive measures to maintain pressure in LNG fuel systems for ships
(Master thesis, 2015)The purpose of this master thesis is to investigate the effects of active and passive measures to maintain the pressure in LNG fuel systems for ships. The background was two de-loading events that occurred on the gas engines ... -
Active latent heat storage using biowax in a central heating system of a ZEB living lab
(Chapter, 2020)The Zero Emission Building (ZEB) lab in Trondheim (Norway), owned by SINTEF and NTNU, provides a structure to develop and test innovative solutions in a living laboratory. An innovative latent heat storage (LHS) unit using ... -
Active supply diffuser application in all-air heating systems
(Journal article; Peer reviewed, 2019)Substantial reductions in energy use can be achieved by promoting low energy building technologies such as all-air systems. There is an idea that integrating active supply diffuser with all-air systems can potentially ... -
Actuation efficiency of nanosecond repetitively pulsed discharges for plasma-assisted swirl flames at pressures up to 3 bar
(Peer reviewed; Journal article, 2021)This study analyzes different strategies of plasma actuation of premixed swirl flames at pressures up to 3 bar. A wide range of applied voltages and pulse repetition frequencies (PRF) is considered, resulting in different ... -
The actuator disk as a wind turbine model: An experimental assessment of the fluid dynamics
(Doctoral theses at NTNU;2023:9, Doctoral thesis, 2023)Climate change is one of the major challenges of our time. With ambitions to keep the average global temperature below 1:5ý C above pre-industrial levels, significant efforts to transform the global energy production from ... -
Adapting the Design Procedures of Heat Pump Systems to nZEB
(Master thesis, 2015)Several changes in the previous Simulink model have been conducted. This have significantly reduced computational time and made the model more user friendly. A more realistic representation of the ground source and the ... -
Adaption of a two phase solver for axisymmetric problems
(Master thesis, 2012)This report documents the adaptation of a two dimensional two phaseNavier-Stokes solver to axisymmetric problems. The changes fromCartesian to cylindrical coordinates are thoroughly described with finitedifference methods ...