Browsing Institutt for energi og prosessteknikk by Title
Now showing items 2071-2090 of 4197
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Influence of Hydrogen Use As a Fuel on Aeroderivative Gas Turbine Performance
(Master thesis, 2021)Den spesifikke energien til hydrogen er flere ganger høyere enn den spesifikke energien til naturgass. I dag bruker generelle gassturbiner naturgass som brensel. Dette fører til at en stor prosentandel av utslippene assosiert ... -
Influence of incoming turbulence and shear on the flow field and performance of a lab-scale roof-mounted vertical axis wind turbine
(Peer reviewed; Journal article, 2023)Flow conditions in an urban environment are complex, featuring varying levels of turbulence intensity and shear. The influence of these flow characteristics on the performance of a roof-mounted vertical axis wind turbine ... -
The influence of interfacial transfer and film coupling in the modeling of distillation columns to separate nitrogen and oxygen mixtures
(Peer reviewed; Journal article, 2020)Coupling between heat and mass transfer occurs across interfaces and in vapor and liquid films. In this work, we present the first rigorous investigation of the role of these physical phenomena in the mathematical modeling ... -
Influence of occupant behavior and operation on performance of a residential Zero Emission Building in Norway
(Journal article; Peer reviewed, 2018)It has been proven that occupant behavior may significantly change building energy performance. The effect of the occupant behavior is becoming even bigger when it comes to highly energy efficient buildings. Specifically ... -
Influence of occupant behavior and operation on performance of a residential Zero Emission Building in Norway
(Journal article; Peer reviewed, 2018)It has been proven that occupant behavior may significantly change building energy performance. The effect of the occupant behavior is becoming even bigger when it comes to highly energy efficient buildings. Specifically ... -
Influence of Occupant Behaviour Regarding Use of Area on Indoor Air Quality in Residential Building - Virkningen av Beboeratferd Vedrørende Bruk av Areal på Inneklima i Bolighus
(Master thesis, 2018)Energy consumption in households stand for approximately 30% [1] of the total energy consumption in Norway, this is related to a number of factors, implying that energy use in buildings can also be optimized in various ... -
Influence of occupant-depentent ventilation and heating set-points on the energy need in low-energy buildings: Virkningen av brukerbestemt ventilasjon og settpunkt for oppvarming på energibehovet i lavenergibygg
(Master thesis, 2014)A large proportion of the energy consumed in Europe is used to maintain comfortable indoor climate in buildings. In recent time governments around the world have implemented energy requirements for buildings, in order to ... -
Influence of occupants' behavior on the performance of net-zero emission buildings
(Doctoral thesis at NTNU;2014:201, Doctoral thesis, 2014)This thesis investigates how the occupant behavior influences the performance of residential net zero emission buildings (Net-ZEB) in cold climates such as in Norway, and proposes guidelines for better design, operation ... -
Influence of position and wind direction on the performance of a roof mounted vertical axis wind turbine
(Peer reviewed; Journal article, 2022)The ideal position for a roof mounted wind turbine is investigated experimentally in a wind tunnel. The set-up consists of two cube-shaped buildings. A Savonius (drag driven) vertical axis wind turbine is placed on one of ... -
Influence of site, turbine height and wind direction on the performance of vertical-axis wind turbines on model buildings
(Master thesis, 2021)Vindturbiner som opererer i det bygde miljøet er utsatt for lavere gjennomsnittshastigheter og høyere turbulente svingninger enn i åpent terreng. Likevel er det regioner rundt bygninger der strømmen blir akselerert og hvor ... -
Influence of space heating distribution systems on the energy flexibility of Norwegian residential buildings
(Chapter, 2020)This work evaluates the influence of the heating distribution system on the energy flexibility of highly insulated single-family residential buildings. The behavior of three different systems (air heating, radiator heating, ... -
Influence of spanwise no-slip boundary conditions on the flow around a cylinder
(Journal article; Peer reviewed, 2017)First we present high resolution large eddy simulations (LES) for the flow past a circular cylinder at Reynolds number 3900 to prove the quality of the simulations. A thorough grid convergence study is presented, and the ... -
Influence of surfactants on the electrohydrodynamic stretching of water drops in oil
(Journal article; Peer reviewed, 2017)In this paper we present experimental and numerical studies of the electrohydrodynamic stretching of a sub-millimetre-sized salt water drop, immersed in oil with added non-ionic surfactant, and subjected to a suddenly ... -
Influence of the low temperature drying process on optical alternations of organic apple slices
(Chapter, 2018)Drying conditions for convective driers are often based on empirical approaches in which the final product quality is evaluated post processing. Modern sensor technology and data processing enable second-by-second quality ... -
Influence of the space-heating distribution system on the energy flexibility of Norwegian residential buildings
(Master thesis, 2018)Demand side flexibility gained more and more research interest over the last years, as the generation of renewable power grows and challenges economical operation of power plants as well as grid stability. Several studies ... -
Influence of the surgical team activity on airborne bacterial distribution in the operating room with mixing ventilation system: A case study at St. Olavs Hospital
(Peer reviewed; Journal article, 2021)Background Operating rooms (ORs) have strict requirements regarding cleanliness. While existing standards concerning the ventilation and staff guidelines are theoretically sufficient to subvert the threats posed by ... -
Influence of thermal zoning and electric radiator control on the energy flexibility potential of Norwegian detached houses
(Journal article; Peer reviewed, 2019)Energy flexibility of buildings can be used to reduce energy use and costs, peak power, CO2eq- emissions or to increase self-consumption of on-site electricity generation. Thermal mass activation proved to have a large ... -
Influence on wind shear and turbulence in flow over obstacles
(Master thesis, 2010)A wind tunnel study of speed-up effects above the very crest of a sharp-edged escarpment and a hill peak in a simulated atmospheric boundary layer has been carried out. It was desired to do a part-depth simulation of an ... -
Influence on wind shear and turbulence in flow over obstacles
(Master thesis, 2010)A wind tunnel study of speed-up effects above the very crest of a sharp-edged escarpment and a hill peak in a simulated atmospheric boundary layer has been carried out. It was desired to do a part-deep simulation of an ... -
Influences of upstream extensions on flow around a curved cylinder
(Journal article; Peer reviewed, 2018)In simulations of flow around a concave curved cylinder, i.e. free-stream aligned with the plane of curvature and directed towards the inner face of the curvature, one cannot avoid interactions between the cylinder and the ...