Browsing Institutt for energi og prosessteknikk by Title
Now showing items 1697-1716 of 4152
-
Framtidens energiveier for bygninger - muligheter for energieffektivisering og konvertering til fornybar energikilde i bygningsmasse
(Master thesis, 2018)Denne oppgaven er delt i fire deler: 1) En litteraturstudie som omfatter temaer innenfor energibruk i bygninger, energieffektiviseringstiltak og bygningssimulering. 2) En analyse av bygningsmassen på Gløshaugen med formål ... -
Francis turbines for variable speed operation
(Doctoral theses at NTNU;2020:79, Doctoral thesis, 2020)Ascribing to the recent trends of market-driven electricity production and increased deployment of non-dispatchable renewables globally, several researchers have suggested the use of variable speed technology to improve ... -
Francis-99: Coupled simulation of the resonance effects in runner channels
(Journal article; Peer reviewed, 2019)A resonance phenomenon is observed experimentally in the runner channels of the Francis-99 model turbine runner. An incompressible CFD simulation is unable to simulate this. Two different coupled physics schemes are therefore ... -
Freeze out in natural gas systems
(Master thesis, 2009) -
Freeze out in natural gas systems: Utfrysning i naturgass-systemer
(Master thesis, 2009)The motivation of the work is to increase the knowledge about thermodynamic modeling of freezeouts in natural gas systems and a deeper understanding of the phase behavior of natural gasmixtures, due to the problems experienced ... -
Frekvensresponsmålinger ved Svartisen Kraftverk
(Master thesis, 2010)Mål Simulere Svartisen Kraftverk i LVTrans og sammenligne med frekvensresponsmålinger. Oppgaven skal bearbeides utifra følgende punkter: 1) Kandidaten skal sette seg in i teorien bak og metoder for frekvens respons målinger ... -
Fremtidig utvikling i energiforbruk og CO2-utslipp for Norges boligmasse
(Research report, 2014) -
Fremtidsrettet energiforsyning for kommunale næringsbygninger i Oppdal sentrum
(Master thesis, 2023)Norge eier kommuner 25% av næringsbygninger som videre står for en tredjedel av energibru- ken i sektoren. Norske kommuner som reduserer energiforbruket i sine næringsbygg vil derfor bidra betydelig til det globale ... -
Fremtidsrettet energiforsyning for kommunale næringsbygninger i Oppdal sentrum
(Master thesis, 2023)Norge eier kommuner 25% av næringsbygninger som videre står for en tredjedel av energibru- ken i sektoren. Norske kommuner som reduserer energiforbruket i sine næringsbygg vil derfor bidra betydelig til det globale ... -
Frequency controlled agglomeration of pt-nanoparticles in sonochemical synthesis
(Peer reviewed; Journal article, 2022)Optimizing the surface area of nanoparticles is key to achieving high catalytic activities for electrochemical energy conversion devices. In this work, the frequency range (200 kHz–500 kHz) for maximum sonochemical radical ... -
Frictional Pressure Drop for Two-phase Flow of Carbon Dioxide in a Tube: Comparison between Models and Experimental Data
(Journal article; Peer reviewed, 2014)We compare models for two-phase frictional pressure drop with experimental data for pure CO2 taken in a tube of 10 mm inner diameter. The flow was nearly adiabatic, and the mass fluxes ranged from 1058 to 1663 kg/(m2 s), ... -
Frictional pressure-drop models for steady-state and transient two-phase flow of carbon dioxide
(Master thesis, 2012)Related to the technology of CO2 capture, transport, and storage (CCS), an accurate transport model which predicts the behaviour of carbon-dioxide mixtures during steady-state and transient situations, is needed. A correct ... -
From bad electrochemical practices to an environmental and waste reducing approach for the generation of active hydrogen evolving electrodes
(Journal article; Peer reviewed, 2019)The electrodeposition of noble metals using corresponding dissolved metal salts represents an interesting process for the improvement of the electrocatalytic Hydrogen Evolution Reaction (HER) properties of less active ... -
From farm to fork: comparative analysis of biodiversity footprints of selected food recipes.
(Master thesis, 2023)Selv om erkjennelsen av klimaendringer er vidt spredt, er spørsmål om tap av biologisk mangfold og skade på økosystemtjenester ikke klar over av flertallet. Artsmangfold karakteriserer stabilitet og bærekraft i økosystemene, ... -
From Ground to Gate: A lifecycle assessment of petroleum processing activities in the United Kingdom
(Master thesis, 2012)Petroleum products are an important component of today s societal energy needs. Petroleum powers everything from the vehicles people rely on, to the ships that carry goods around the world, to the heating of homes in colder ... -
From remotely‐sensed data of Norwegian boreal forests to fast and flexible models for estimating surface albedo
(Journal article; Peer reviewed, 2018)The importance to consider changes in surface albedo and go beyond simple carbon accounting when assessing climate change impacts of forestry and land use activities is increasingly recognized. However, representation of ... -
Front Wing Interactions on a Racecar
(Master thesis, 2014)A multi-element front wing of a formula student car was analyzed using the Computational Fluid Dynamics (CFD) software STAR-CCM+. A number of cases were simulated in steady state to get an understanding of the interaction ... -
Frost formation in membrane based flat plate heat exchangers
(Master thesis, 2014)The objective of the Research Centre ZEB is to eliminate greenhouse gas emissions from buildings. Reducing the energy consumption in buildings is a means to that end. The use of membrane based plate heat exchangers can ... -
Frost formation in membrane based flat plate heat exchangers
(Master thesis, 2014)The objective of the Research Centre ZEB is to eliminate greenhouse gas emissions from buildings. Reducing the energy consumption in buildings is a means to that end. The use of membrane based plate heat exchangers can ... -
Frostsikring av ubebodde bygninger
(Master thesis, 2017)Å redusere energiforbruket i bygningssektoren er meget viktig for å sikre en bærekraftig fremtid. Fritidsboliger representerer en del av den norske bygningsmassen, og direkte elektrisk oppvarming brukes ofte til frostsikring ...