Browsing Institutt for energi og prosessteknikk by Title
Now showing items 2918-2937 of 4253
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Oppvarming og varmegjenvinning i dagligvarebutikker
(Master thesis, 2012)Dagligvarebutikker i Norge er store brukere av energi. Som et ledd i å redusere energibehovet for sine nåværende og fremtidige butikker, har dagligvarekjeden REMA 1000 inngått et samarbeid med SINTEF Energi. Dette samarbeidet ... -
Optical Measurements and Numerical Modeling of the Temperature Distribution Across a Proton Exchange Membrane (PEM) Fuel Cell
(Master thesis, 2024)Effektiv varmestyring er avgjørende for å optimalisere ytelsen til Proton-utveksling membran (PEM) brenselsceller. Flere numeriske modeller er designet for å predikere temperaturvariasjonene til en PEM brenselcelle under ... -
Optical Measurements of In-Flame Soot in Compression-Ignited Methyl Ester Flames
(Journal article; Peer reviewed, 2019)This study investigates in-flame sooting characteristics of biodiesel surrogates in compression-ignited spray flames. The aim of the study is to produce reliable experimental data on in-flame soot for validation of kinetic ... -
Optical Study of Soot Characteristics of Biofuel Spray Combustion
(Doctoral theses at NTNU;2020:117, Doctoral thesis, 2020)Liquid biofuels for internal combustion engines will likely be part of the future solution for mitigating CO2 emissions to the atmosphere. Several types of biofuels for compression ignition (CI) engines are being developed ... -
Optimal combination of bioenergy and solar photovoltaic for renewable energy production on abandoned cropland
(Peer reviewed; Journal article, 2021)Ambitious climate change mitigation scenarios require large-scale deployment of bioenergy and solar photovoltaics. Utilizing recently abandoned cropland for renewable energy production is a promising option for energy ... -
Optimal combination of bioenergy and solar photovoltaic on abandoned cropland for renewable energy production
(Master thesis, 2020)Transformasjonen av globale energisystem er framleis langt frå nivåa som krevjast for å stabilisere den globale oppvarminga til 1.5 grader Celsius i forhald til den førindustrielle æra. Dei mest ambisiøse scenario for ... -
Optimal combination of natural and mechanical ventilation in ZEB Laboratory
(Master thesis, 2019)Bygningssektoren er en energiintensiv sektor, med et forbruk på over 40% av det totale energiforbruket i Norge. Energien forbrukes blant annet til oppvarming og nedkjøling av bygninger. Et stort energiforbruk skyldes derfor ... -
Optimal Control of Batteries and Hot Water Heaters for Energy Flexibility in Zero Emission Neighbourhoods
(Master thesis, 2019)Denne masteroppgaven har undersøkt energifleksibiliteten i et nullutslippsnabolag. Campus Evenstad, som er et pilotprosjekt i forskningssenteret for nullutslippsnabolag, har blitt brukt som eksempelstudie. Ved hjelp av en ... -
Optimal control of flexible natural gas combined cycles with stress monitoring: Linear vs nonlinear model predictive control
(Peer reviewed; Journal article, 2020)In future energy markets, traditional thermal power plants are expected to cycle more to adapt their operation to the intermittent power generation of renewable energy sources. Gas turbine load ramps and stresses in ... -
Optimal control of secondary side supply water temperature for substation in district heating systems
(Journal article; Peer reviewed, 2019)Low temperature is the most significant feature of the future district heating system- the 4th generation district heating (4GDH). However, a widely used control strategy for supply water temperature in substation is ... -
Optimal cryogenic processes for nitrogen rejection from natural gas
(Journal article; Peer reviewed, 2018)Nitrogen rejection processes are usually needed for two natural gas sources: sub-quality natural gas reserves and produced gas from enhanced oil/gas recovery technologies. The nitrogen content of natural gas in the former ... -
Optimal deployment pathways for electric vehicles in the UK
(Master thesis, 2019)Storbritannia har forpliktet seg til å redusere sine klimagassutslipp med 80 % i 2050, relativt til 1990. I 2018 stod veitrafikken for en tredjedel av de nasjonal utslippene, så en avkarbonisering av denne sektoren har et ... -
Optimal design and operation of a waste tire feedstock polygeneration system
(Peer reviewed; Journal article, 2021)The optimal design and operation of a polygeneration system that uses a waste tire feedstock to produce a mix of electricity, fuels and chemicals is presented. Rigorous mass and energy balance models for the process are ... -
Optimal Design and Operation of Flexible Polygeneration Systems using Decomposition Algorithms
(Computer-aided chemical engineering;, Chapter, 2020)A flexible design solution for a polygeneration system that utilizes a hybrid waste tire and natural gas feedstock to produce a mix of electricity, fuels and chemicals is presented. The optimal design and operation under ... -
Optimal Design of a Hybrid Energy System for the Supply of Clean and Stable Energy to Offshore Installations
(Peer reviewed; Journal article, 2020)This paper presents an innovative hybrid energy system for stable power and heat supply in offshore oil and gas installations. The proposed concept integrates offshore wind power, onsite gas turbines and an energy storage ... -
Optimal Design of Flexible Power Cycles through Kriging-based Surrogate Models
(Chapter, 2018)The paper presents a novel technique to define the optimal design of a power cycle considering design and off-design performance. A Kriging-based surrogate model is developed in order to simulate the power cycle at design ... -
Optimal diluent allocation in production systems with diluent-ESP-lifted wells
(Master thesis, 2016)In this research, the author presents the development of a numerical model for production systems (wells and surface flowlines) to determine optimal diluent allocation. The model includes the main inflow performance equations ... -
Optimal drift av kompressorer
(Master thesis, 2007)Ved Troll Kollsnes ble ett nytt gassbehandlingstog satt i drift i 2004. Det er også blitt installert en sjette kompressor i parallell med de fem opprinnelige kompressorene. Formålet med denne oppgaven var å undersøke i ... -
Optimal dynamic operation of natural gas combined cycles accounting for stresses in thick-walled components
(Journal article; Peer reviewed, 2020)Flexible natural gas combined cycles will play a fundamental role in future electric markets.Stressesinthick-walled components and gasturbine load ramps are arguably the main limiting factors during transient operation.Classical ... -
Optimal energiproduksjon
(Master thesis, 2007)Det er laget en ytelsesmodell av GE LM2500 DLE gassturbin i HYSYS 2004.2 (Aspen Tech). Det er utviklet karakteristikker for kompressor og turbiner samt funksjoner og regulatorer for andre parametere. Nye konsepter for ...