Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 2897-2916 av 4147
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Optimization of energy consumption in buildings with hydronic heating systems considering thermal comfort by use of computer-based tools
(Journal article; Peer reviewed, 2007)The paper deals with an optimization of parameters, which influence the energy and investment cost as well as the thermal comfort. The parameters considered in this study are: the insulation thickness of the building ... -
Optimization of flexible renewable energy systems under uncertainty
(Master thesis, 2021)Fleksibilitet for energisystem er et begrep som brukes om evnen til å dekke en usikker og varierende etterspørsel av energi. For fornybare energisystemer kan tilstrekkelig fleksibilitet bli et problem på grunn av naturlige ... -
Optimization of FLNG liquefaction processes
(Master thesis, 2015)As the development of FLNG is on the rise, improvements in liquefaction process design and operation is of high priority. The liquefaction processes utilized for FLNG vary in complexity and efficiency. Space requirement ... -
Optimization of Francis Turbines for Variable Speed Operation Using Surrogate Modeling Approach
(Peer reviewed; Journal article, 2020)Previous studies suggested variable speed operation (VSO) of Francis turbines as a measure to improve the efficiency at off-design operating conditions. This is, however, strongly dependent on the hydraulic design and, for ... -
Optimization of Heat Exchanger Network using SeqHENS
(Master thesis, 2020)Hvordan varmeveksler nettverk kan settes opp har vært forsket på siden 1970 tallet. Hovedmålet har da alltid vært å finne en mest mulig effektiv konfigurasjon for å overføre varme mellom masses- trømmer. Det begynte på ... -
Optimization of heating and cooling system for a passive house equipped with heat pump and heat storage
(Master thesis, 2016)During considerations included in this master thesis re - design of previously developed low energy building destined to be located in Oslo was performed using IDA ICE simulation software. After some construction modifications, ... -
Optimization of helium extraction processes integrated with nitrogen removal units: A comparative study
(Journal article; Peer reviewed, 2019)Helium is regarded as a vital gas to various industries such as medicine, aircraft manufacturing, electronics and fiber optics fabrication. Currently, natural gas reserves are considered the only viable resource for this ... -
Optimization of hydrogen liquefaction process with mixed refrigerant precooling
(Master thesis, 2021)Hovedmålet med denne masteroppgaven er å finne en optimal for-kjølingstemperatur mellom 80-120 K for en optimalisert 100 tdp flytende hydrogenprosess ved å bruke MR for-kjølingssyklus, og å utføre en eksergianalyse på den ... -
Optimization of Liquid Air Energy Storage (LAES) using a Genetic Algorithm (GA)
(Peer reviewed; Journal article, 2020)Renewable energy sources have a growing share in the energy market due to the threat from climate change, which is caused by emissions from fossil fuels. A future energy scenario that is likely to be realized is distributed ... -
Optimization of Microgrids Feasibility Study and Economic Analysis of Rye Microgrid
(Bachelor thesis, 2019)Mikronett har potensialet til å bli en fremtidlig løsning for å forsyne avsidesliggende steder med energi. TrønderEnergi undersøker denne forretningsmuligheten som en del av REMOTE prosjektet på Froan, en gruppe øyer på ... -
Optimization of NGL Extraction Processes for Floating LNG Processes
(Master thesis, 2016)Removal of heavy hydrocarbons from natural gas streams is necessary in all liquefaction processes to prevent freeze-out in the main cryogenic equipment. In addition, more valuable products are obtained giving the process ... -
Optimization of ORCs for low grade heat recovery: working fluid selection, methodology and applications
(Master thesis, 2017)n this work two different heat sources were considered: geothermal brine at temperatures ranging from 90 to 150°C, and waste heat coming from an aluminum manufacturing plant. A number of 64 pure fluids and 35 mixtures were ... -
Optimization of Organic Rankine Cycles for Waste Heat Recovery From Aluminum Production Plants
(Journal article; Peer reviewed, 2019)This paper presents the optimization of organic Rankine cycles (ORCs) for recovering waste heat from a hypothetical aluminum production plant to be installed in Norway. The case study is particularly interesting because ... -
Optimization of Pipe Geometries with Entropy Production Minimization in Viscous Flow
(Master thesis, 2022)Hvordan termodynamiske irreversibiliteter i strømningen i ejektorer kan reduseres og hvordan optimalt design av ejektorer skal utføres er enda ikke helt forstått. Ejektorer er utstyr som brukes i forskjellige energiprosesser ... -
Optimization of single mixed-refrigerant natural gas liquefaction processes described by nondifferentiable models
(Journal article; Peer reviewed, 2018) -
Optimization procedure for variable speed turbine design
(Journal article; Peer reviewed, 2018)This article outlines a design procedure for variable speed Francis turbines using optimization software. A fully parameterized turbine design procedure is implemented in MATLAB. ANSYS CFX is used to create hill diagrams ... -
Optimization under uncertainty of a hybrid waste tire and natural gas feedstock flexible polygeneration system using a decomposition algorithm
(Peer reviewed; Journal article, 2023)Market uncertainties motivate the development of flexible polygeneration systems that are able to adjust operating conditions to favor production of the most profitable product portfolio. However, this operational flexibility ... -
Optimization under Uncertainty of Hybrid Feedstock Polygeneration Systems
(Doctoral theses at NTNU;2021:305, Doctoral thesis, 2021) -
Optimizaton of fast hydrothermal liquefaction of biomass
(Master thesis, 2016)Fossil liquid oil possesses many properties that have made it one of our primary sources of energy on which modern societies are highly dependent on. With the growing concern of fossil fuels impact on the environment, there ... -
Optimize heat prosumers' economic performance under current heating price models by using water tank thermal energy storage
(Peer reviewed; Journal article, 2021)Due to heat prosumers' dual roles of heat producer and heat consumer, the future district heating (DH) systems will become more flexible and competitive. However, the current heating price models have not yet supported the ...