Blar i Institutt for energi og prosessteknikk på tittel
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Volatile Organic Components Adsorption on Activated Carbon
(Master thesis, 2022)Some volatile organic components may cause serious human health and environmental threats. These components are "global warming agents" that contribute to climate change. While the negative impact of methane and carbon ... -
Vortex dislocation mechanisms in the near wake of a step cylinder
(Peer reviewed; Journal article, 2020)Vortex interactions behind step cylinders with diameter ratio D/d = 2 and 2.4 at Reynolds number ( ReD ) 150 were investigated by directly solving the three-dimensional Navier–Stokes equations. In accordance with previous ... -
Vortex dynamics of a jet at the pressure node in a standing wave
(Journal article; Peer reviewed, 2020)In this paper we investigate the vortex structure and dynamics formed in the near field of a turbulent axisymmetric jet subjected to transverse acoustic forcing. Full three-dimensional phase-averaged velocity measurements ... -
Vortex generator's effect on trailing edge vortex shedding and fluid structure interaction
(Peer reviewed; Journal article, 2020)An initial study of the effects vortex generators (VGs) have on the mitigation of vortex-induced vibrations (VIVs) of hydrofoils have been performed at the Waterpower laboratory of the Norwegian University of Science and ... -
Vortex generator's effect on trailing edge wake and fluid structure interaction
(Master thesis, 2020)Detaljer rundt bruk av virvelgeneratorer i hydrodynamiske miljøer og deres effekter på mildning av virvelinduserte vibrasjoner er ennå ikke tilstrekkelig undersøkt i litteraturen. Vannkraftverk som er utsatt for disse ... -
Vortex interaction in the wake of a two- and three-bladed wind turbine
(Peer reviewed; Journal article, 2020)The vortex interaction in the wake behind a two- and three-bladed model scale wind turbine is investigated. The two rotors have equal solidity, and produce similar power and thrust at the design tip speed ratio. Phase-averaged ... -
Vortex system around a step cylinder in a turbulent flow field
(Peer reviewed; Journal article, 2021)The vortex system around the step surface of a step cylinder with a diameter ratio D/d=2 at Reynolds number (ReD) 3900 was investigated by directly solving the three-dimensional Navier–Stokes equations. Formation mechanisms ... -
Vurdering av beregningsmetoder for vind-karakteristika
(Master thesis, 2016)Atmospheric stability is important to, among other things, obtain a more accurate estimate of the wind speed profile. This work presents atmospheric stability distributions at two sites from three masts and compares them. ... -
Vurdering av energibruk og inneklima i verneverdige skolebygninger som renoveres
(Master thesis, 2010)Ny Krohnborg skole er vurdert som verneverdig av byantikvaren i Bergen. Skolen har i de siste årene hatt behov for rehabilitering. Rehabilitering av verneverdige bygninger gir spesielle krav til hvilke tiltak som kan ... -
Vurdering av energiomlegging og energieffektiviserende tiltak i enebolig
(Bachelor thesis, 2023)Det økende behovet for elektrisk energi i samfunnet, samt overgang til fornybare energikilder, har blant annet satt økt fokus på effektiv energibruk. Norges tilknytning til energisituasjonen i Europa via utenlandskablene, ... -
Vurdering av grovpartikkelutskiller ved Elkem Thamshavn
(Master thesis, 2013)Ved Elkem Thamshavn, filter sør, blir partikler separert fra støvholdig gas gjennom to separasjonstrinn. I det først trinnet blir gassen sendt gjennom en radiklon. Denne består av en forutskiller og en syklon. Funksjonen ... -
Vurdering av operasjonell tilgjengelighet av prosessanlegg for CO2-fangst
(Master thesis, 2009)Denne oppgaven viser en metodikk for beregning av operasjonell tilgjengelighet av et aminanlegg for separasjon av CO2 fra eksosgass. Det fins foreløpig ikke anlegg som separerer CO2 fra eksosgass i en storskala sammenheng ... -
Vurdering av utnyttelse av CO2-varmepumpeteknologi i nytt meieri
(Master thesis, 2009)Det analyseres i denne rapporten muligheten for storskala utnyttelse av CO₂ varmepumpeteknologi i et planlagt meieri. Dette innehar et stort simultant behov for både kjøling og oppvarming, noe som legger godt til rette for ... -
Wake behind a concave curved cylinder
(Journal article; Peer reviewed, 2018)The wake behind a quarter-of-ring concave curved cylinder is investigated in this paper by means of direct numerical simulations. The plane of curvature is aligned with the uniform incoming flow. We have appended straight ... -
Wake behind a horizontal-axis wind turbine
(Master thesis, 2011)In this paper theory on cylinder and wind turbine wakes have been studied, and experimental work on the wake behind a wind turbine have been carried out in the Fluids engineering laboratory at NTNU.The objective of this ... -
Wake behind a wind turbine operating in yaw
(Master thesis, 2013)The object of this study is primarily to understand the behavior of the wake behind a yawed turbine, and if yaw can be a method for actively controlling the direction of the wake, and thereby controlling the power output ... -
Wake dynamics of flow past tapered bluff bodies
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:260, Doctoral thesis, 2008) -
Wake flow and aerodynamic performance of time trial helmets
(Master thesis, 2019)Luftmotstand er den viktigste motstandskraften i sykkelkonkurranser. For å forbedre den aerodynamiske ytelsen blir det brukt tempohjelmer som er spesielt designet for å redusere luftmotstanden. Tempohjelmene som er ... -
Wake Interactions and Performance Characteristics of a Pitched Model Wind Turbine
(Master thesis, 2015)In order to decrease the average costs of energy, wind turbines are arranged in wind farms where aerodynamic interactions between the turbines occur. When planning and optimizing the performance of a wind farm, these ... -
Wake Measurements Behind An Array Of Two Model Wind Turbines
(Master thesis, 2011)During the last decades the exploitation of energy from the wind has become one of the most promising renewable energy technologies. The main strive in today s development of wind turbines is to increase the efficiency of ...