Browsing Institutt for energi og prosessteknikk by Title
Now showing items 818-837 of 4147
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Degenerate perturbation theory in thermoacoustics: high-order sensitivities and exceptional points
(Peer reviewed; Journal article, 2020)In this study, we connect concepts that have been recently developed in thermoacoustics, specifically (i) high-order spectral perturbation theory, (ii) symmetry-induced degenerate thermoacoustic modes, (iii) intrinsic ... -
Degradering av flourpolymerer ved hjelp av partielle utladninger
(Master thesis, 2010)Prosjektet har blitt utført i samarbeid med SINTEF Energi AS. Hovedformålet med prosjektet har vært å sammenligne kryssbundet polyetylen (PEX) med perfluoroalkoxy (PFA) med hensyn på levetid i elektrisk sammenheng. I dag ... -
Dehydrating gas by using clathrate hydrates
(Master thesis, 2011)In this study, an approach to utilize hydrates in a positive perspective by using them to dehydrate the gas stream was investigated. Tetrahydrofuran (THF) and water was applied as the model system to examine the dehydration ... -
Demand response with active phase change material based thermal energy storage in buildings
(Journal article; Peer reviewed, 2023) -
Demographically-Extended Socioeconomic Metabolism: A step towards addressing human needs and wants in resources’ modelling
(Doctoral theses at NTNU;2018:233, Doctoral thesis, 2018)Sustainable sociometabolic patterns are required to overcome unsatisfied needs, inequalities, and environmental problems, especially because of the expected population growth and rising living standards. To inform socioeconomic ... -
Demonstrating load-change transient performance of a commercial-scale natural gas combined cycle power plant with post-combustion CO2 capture
(Journal article; Peer reviewed, 2017)The present work aims to study the transient performance of a commercial-scale natural gas combined cycle (NGCC) power plant with post-combustion CO2 capture (PCC) system via linked dynamic process simulation models. The ... -
Demonstration of Gas Switching Technology for Accelerated Scale-up of Pressurized Chemical Looping Applications
(Doctoral theses at NTNU;2020:300, Doctoral thesis, 2020)This research focused on the experimental demonstration of Gas Switching Technology as an alternative for pressurized chemical looping. Chemical looping processes usually employ circulation fluidized bed (CFB) arrangement ... -
Demonstration of PV Power to High-temperature Heat Storage for Solar Cookers
(Master thesis, 2022)I Tanzania har 72% av den urbane befolkningen tilgang til elektrisitet, men matlaging gjennom kull- og vedfyrte ovner er fortsatt den mest brukte metoden. Det er grunnet kulturelle preferanser, høy tilgjengelighet og lav ... -
Demonstration of PV Power to High-temperature Heat Storage for Solar Cookers
(Master thesis, 2022)I Tanzania har 72 % av den urbane befolkningen tilgang til elektrisitet, men matlaging gjennom kull- og vedfyrte ovner er fortsatt den mest brukte metoden. Det er grunnet kulturelle preferanser, høy tilgjengelighet og lav ... -
Demonstration of Swing adsorption cluster concept (SARC) for CO2 capture
(Doctoral theses at NTNU;2021:148, Doctoral thesis, 2021)Adsorption-based post-combustion CO2 capture is enjoying significant research attention due to its wide applicability within the power and industrial sectors and its ability to retrofit existing infrastructure. Important ... -
Depotlading av elektriske busser i Oslo og Akershus
(Bachelor thesis, 2019)Som en del av elektrifiseringen av den norske transportsektoren er elektriske busser et viktig bidrag for å redusere klimagassutslippet. Oslo ønsker å være i toppen av elektrifiseringen og ble tildelt tittelen Europeisk ... -
Depressurization of CO2 in pipes: Analysis of experiments and non-equilibrium flashing flow models
(Doctoral theses at NTNU;2023:427, Doctoral thesis, 2023)CO2 capture and storage is expected to play a vital role in reaching net zero emissions by 2050. In this context, large-scale CO2 pipeline transportation networks must be deployed. In order to perform safety analyses and ... -
Depressurization of in a pipe: Effect of initial state on non-equilibrium two-phase flow
(Peer reviewed; Journal article, 2023)It is key in several industrial applications to accurately describe rapid depressurization of liquid and dense phase states. Examples include refrigeration systems, nuclear reactor cooling and capture and storage (CCS). ... -
Deriving life cycle assessment coefficients for application in integrated assessment modelling
(Journal article; Peer reviewed, 2018)The fields of life cycle assessment (LCA) and integrated assessment (IA) modelling today have similar interests in assessing macro-level transformation pathways with a broad view of environmental concerns. Prevailing IA ... -
Description of atmoshperic freeze-drying process of organic apples using thermo-physical properties
(Chapter, 2018)This study discusses the influence of temperature and total moisture content on ice fraction in organic apples during atmospheric freeze-drying process. The ice formation of glass transition events were described by Clausius- ... -
Description of atmospheric freeze-drying of brown seaweeds (Saccherina Latissima) with respect to thermal properties and phase transition
(Chapter, 2018)Thermal properties of brown seaweeds (Saccharina latissima) were determined using DSC technique in the temperature range between -150.0 and 50.0 °C. The following phase transitions were detected: glass transitions, incipient ... -
Design and analysis of cascade liquefaction processes for coproducing liquid ethane and LNG
(Peer reviewed; Journal article, 2022)Ethane recovery is an important way to increase the economic benefits of unconventional natural gas, such as shale gas. However, current researches did not focus on obtaining high purity and high recovery rate of ethane. ... -
Design and analysis of CO2 trans-critical heat pump systems for increasing of energy efficiency of Li-batteries production
(Master thesis, 2021)Large amount of emission is expected to be reduced by transitioning from internal combustion engine (ICE) vehicles to electric vehicles (EVs) in the future. The production of Li-ion batteries (LIBs) which is the most ... -
Design and analysis of freeze-concentrator for processing of fish protein hydrolysate
(Master thesis, 2022) -
Design and control of precision drop-on-demand herbicide application in agricultural robotics
(Chapter, 2014)Drop-on-demand weed control is a field of research within Precision Agriculture, where the herbicide application is controlled down to individual droplets. This paper focuses on the fluid dynamics and electronics design ...